Fender Tone Master Pro

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Fender Tone Master Pro

Post by Wonks »

As it’s been featured in the latest issue of Guitarist, I thought I’d give you my thoughts on my Fender Tone Master Pro (or TMP) in case you were considering asking Santa for one.

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It’s expensive, (just under £1500 at the moment) but you do get a fair amount for the money in terms of useful features like the colour touch screen, multiple colour switch status LEDs, programmable scribble strips, 4/3 programmable external effects loops (two pre A/D loops, and one stereo or two mono fx loops that can be positioned anywhere in the digital signal chain) and two sets of outputs that can be independently set for dual mono or stereo outputs.

Sound-wise, it’s certainly up there with the Helix (the only unit I’ve done a direct comparison with). You wouldn’t want to ditch your Helix for one because they sound very similar, though the Fender does have a couple of slightly more accurate models. It’s certainly more compact than a Helix and the tops of the foot switches rotate and double as knobs, which help make the most of the real estate.

It’s one of those units where the basic operation is very simple to understand using the touch screen. For a deeper understanding, you need to refer to the manual, which for me isn’t that good. There’s a lot where some simple cross referencing would make it so much more informative. E.g. the connections diagram just shows a line from the outputs to a FRFR cab. Nothing about whether to use the left or right output if you have just one cab. A ‘see page 30’ style note would take you to the global settings page and the software switch for 2x mono or 1 x stereo output(s).

There is no info that I can find about how stereo signal paths from FX units run. You only get a basic line linking the amps and FX modules on the screen display (and editing software) and it's not clear how it treats say a stereo effect running into what would normally be a mono effect.

There are a number of set signal paths you can chose from when creating your own presets, so you can have parallel amps and parallel FX paths, but probably not quite as flexible as say the Helix software currently is (though that's had many years of development now), but I am still finding my way around.

As well as the guitar input (which has selectable input impedances to mimic vintage FX units or a studio rack unit being the first in the chain), there is also a mic/line input on a combi jack, with phantom power available. You can have a fully separate parallel signal path for the mic/line input, so you can have say an acoustic guitar going through the instrument input and its own FX chain and a vocal mic through the parallel path with its own set of FX. You can then mix the outputs or send the guitar to one output and the mic to another. Remember that there are two sets of stereo outputs availble, so you can have stereo vocal and stereo guitar outputs if you so wish.

With the USB port connected to a computer, it can also act as a basic audio interface (there's an ASIO driver for windows).

But the USB port can also be used to connect to the editing software package, mimicking the touch screen graphical, but which also allows saving and loading of all the settings/presets on the unit, firmware updates, the loading of individual presets to and from the Fender cloud, and the loading of third party IRs.

The presets are the usual mixture of decent and over-effected patches. I found that a lot sounded very muffled, mainly down to the mic position chosen. Most are to the side of the cone, and a few inches back. At least it encourages you to dive in and try out more central positions and different mics.

For live sounds through a FRFR cab, I suggest switching to the Earthwork’s M32 flat response measurement mic impulses, so you don’t add a more nuanced mic’s frequency response to the basic amp and speaker sound. I’d generally leave the other mic choices for when recording.

There's a wide, if not yet comprehensive, range of effects and a similarly wide range of amp types, though heavily featuring Fender amp types. Standard Tweed and Blackfaces, some of their more modern ranges like the Hot Rods and Bassbreakers, along with sub-brands like the EVH 5150 amps. Some Marshalls (surely more to come), Voxes, Friedmans, the odd Mesa Boogie or Rectifier etc.

As yet no Orange or Hi-Watt or the countless other makes that other modellers now include. But each amp is supposed to take 3 months to model and test (mentioned in Guitarist mag), so they had to draw a line somewhere in order to get the first units out.

It is early days for the unit and so far there have been two firmware updates; V1.1.0 and V1.1.111. There will definitely be more. I've had the touch screen lock up a few times and when a patch is in stomp box mode, the LED rings round the foot switches lose track of an FX on/off status if you use the touch screen to bypass or enable an FX unit, Fender are aware of these particular faults, and are working on them (along with many other issues I'm sure). Some of the factory patches currently come with the light indications reversed.

Note that you can pick from about 7 colours for each the LED ring on (or even off) selection, so you can say pick a colour to indicate an FX type, or try and match the colour of the FX pedal shown on the screen e.g. green for a Tube Screamer, blue for a CE-2 etc.

There's an SD card slot, currently unused, but the Fender service rep I've swapped emails with said that there are plans to use this for saving/loading individual patches, as you won't always be connected to a computer when editing patches and it's important you have a backup. The individual patch Fender cloud upload/download is to a common global storage area, for everyone with a TMP, which seems like someone's bright idea but could very quickly become unmanageable.

It's really supposed to be for creating patches that others can use e.g. "Bohemian Rhapsody Lead Patch", but with no other way to save individual patches, it's going to be used for general storage. At least you can search by user name for your own.

Given the mic input, there are rumours that at some point you'll be able to create your own impulse responses.

There are various ways to arrange your presets, one of them being a song list, which is something that I've been told the Helix lacks. I've yet to try it but it should be useful for gigging.

The TMP was also introduced with two matching Fender FRFR cabs, the FR-10, a 10" unit and the FR-12, unsurprisingly a 12" unit, both with HF tweeters. Web reports said the 12" sounded a bit fuller in the low mids (not surprising really), so after deciding I liked the TMP, I bought a FR-12. It's the size of a Hot Rod Deluxe/Blues Deluxe, whilst the FR-10 is more the size of a Blues Junior. Both have a 300W power amp (1000W peak). Peak SPL for both is given as 130dB, so they go loud. It has treble, mid and bass tone controls, along with a level cut control for the HF tweeter, so you can tweak your overall sound settings, much like a traditional amp, to match the venue's acoustics, without needing to change the global output graphic at all.

It is a bit hissy (I can't hear it with my damaged hearing unless the amp is right up) but a change of op amps (Fender penny pinching on components in conjunction with a reportedly over-complex 12-stage series tone section) should fix that.

Other FRFR cabs are available, but the Fender ones looks like an amp rather than a repurposed PA speaker. The amp/cab-like Laney 1x12" FRFR sounds good, is a bit cheaper, but is a bit quieter and a lot heavier (about 5kg) and with its corner handles, is a lot more awkward to pick up than the top handled FR-12. The Laney has a small tilt-back support that flips down underneath, but the FR-12 has traditional Fender tilt-back legs on the side, allowing a much greater angle of tilt.

Another item in the TMP range is a Mission Engineering Expression pedal with toe switch. Nice and sturdy and has five selectable output tapers, but costs a ridiculous £160. The TMP has two hardware expression pedal inputs, one with an associated toe switch input (to mimic a Wah pedal), and can also accommodate two MIDI expression pedals (The TMP has hardware MIDI in and out sockets).

But the TMP expression pedal setup itself has six selectable tapers, so the hardware ones on the Misison Engineering pedal are really redundant.

Not wanting to pat £160 for an expression pedal (maybe if I was on a World tour) I made my own from a £26 Nektar expression pedal a footswitch and a jack socket. About £30 in total.

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Works perfectly.

But I'm sure Fender could make an expression pedal turn an effect off and on simply using position. I know the Helix and Headrush can be made to do this (though it's not standard feature), rather like a Bad Horsie wah. So maybe we'll see that in the future.

It's one of the most expensive modelling pedals out there, so it's not going to be for everyone. It's got a lot of very nice features that make it easy to use, but not everyone wants all those features. Sound-wise, it's certainly up there with the best, but for the price, it needs to be.

Give it a year, with bug fixes and more amp and FX models and features (e.g. there's no auto-wah whilst there's about 10 different chorus models) and it should be an outstanding product. At the moment it's very good, but it could and should be even better.

And given that this is the Tone Master Pro, undoubtedly there will be a Tone Master Junior (or similar) with less connectivity and a lower price.
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Re: Fender Tone Master Pro

Post by Music Wolf »

Since I already own both a Helix and a Kemper it's unlikely that I'll be splashing out on a Tone Master Pro any time soon, but I am interested in how it compares.

Wonks wrote: Sat Dec 09, 2023 10:06 pm
There are various ways to arrange your presets, one of them being a song list, which is something that I've been told the Helix lacks. I've yet to try it but it should be useful for gigging.


Having scanned the manual / watched a few vids when the product was first released, this was the feature that caught my eye. Even though my Helix patch list is laid out in a 'one-patch-per-song' format the reality is that many of the songs use the same basic tone. As I develop, and hopefully improve, my tones I often find myself copying and re-naming several patches. I've often thought that it would be useful to be able to link patches so that, if you tweak the clean sound on Song A, the same changes are made to all Songs which make use of that same tone.

It may be possible to do this with the Kemper (I'd have to check since I no longer use the Kemper live), but this leads me to a question - what is the switch speed like on the Fender?

It appears as though the Fender, like the Kemper, is building songs out of different patches whereas the Helix is using Snapshots to change parameters within the same patch. This means that, with the Fender and Kemper, you could have a completely different amp model on the verse vs. the chorus whereas, with the Helix, you are limited to the one amp model but you could change the gain.

What I've found is that the Helix switch speed is much faster (20ms for the Helix vs. 150ms on the Kemper when triggered by a MIDI command).
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Re: Fender Tone Master Pro

Post by Wonks »

The sound changes instantly, certainly no lag I can tell. Arkieboy, whose Helix we compared it with, said TMP certainly switched sounds immediately compared to the Helix, when using the foot switches. I haven't needed to switch using MIDI yet. The graphics follow on, so there is a very short lag in the screen being refreshed to show the new patch, but probably less than 100ms.

Switching via the touch screen is probably a little slower. A function of the touch-screen electronics I assume. But if you are using the screen, you probably aren’t mid-song in a gig and a very slight delay isn’t important.
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Re: Fender Tone Master Pro

Post by Wonks »

Having just spent some time using it, I need to modify a statement in my last post and say that whilst using the foot switches to change patches, the sound does change as close to instant as you can get, then with the screen displaying the FX and amp pictures, I'd say it it takes around 1/2 a second to update the screen.

But there is an alternative 'gig mode' display, where you get a fairly big patch number and name on the screen, nothing else, no pictures of amps or pedals, and that changes instantly. For each different patch, I'd imagine the software has to go and get the various pictures from the database and then assemble them in order before displaying them, which takes a bit of time, especially as it can't dedicate all its processing resources to the task as its busy making noises.

I also forgot to mention that it takes a while to boot up. I've just measured it at 45 seconds from switching on until you can get sound coming out.

I've turned it off whilst still plugged into active amps and there aren't any thuds.

I also forgot to mention it has two programmable 'amp switching' outputs for changing channels or amp reverb or tremolo on and off.

And Bluetooth so you can play along to tracks that way if you don't want to use the aux input for that.
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Re: Fender Tone Master Pro

Post by arkieboy »

I spent a fair amount of time noodling around with Wonks TMP, A-B-ing it with my Helix LT, and my wallet is relieved to say there wasn’t a lot in it in terms of sound and response between the units! But the Helix has gone through three major software versions, and until the most recent update with the new cab models, received wisdom was you needed 3rd party IRs to dial it in properly, and it certainly made it much easier to get the sound you wanted.

The TMP UI is instantly approachable and defaults sensible, so making simple signal paths and getting a good sound isn’t exactly hard right out of the box. However I think if you’re a tech savvy user, after a short and fairly shallow learning curve, it will be easier to get more interesting things done with the Helix. Signal routing in particular is very flexible with the Helix; simply dragging an effect off the main path will create a wet/dry path; it’s a bit more fiddly with the TMP.

That said the powerful conceptual architecture is more important with a Helix because there is a small, but noticeable delay in switching full-blown patches. The fix to this is to view a patch as a ‘virtual rig’ and switch in-and-out pedals and automate amp gain and tone controls using snapshots - which is instantaneous. There is plenty of horse-power in the Helix to get two amp/cab combinations in one patch for all but the most demanding amp models, and the reward is consistency and character in your guitar tone - if that’s what you value. I get through an entire ‘greatest hits’ theatre review gig with just two patches, one patch with a low-gain rig containing a Twin and an AC, and another higher one with an AC and a JTM.

You can do the ‘virtual rig’ thing with the TMP, but you don’t need to do so as much because the increased processing power leads to fast patch changeover. Remember the Helix has been going for quite some time - you wonder if the TMP will trigger a new high end version of the Helix, given that some of the really intensive effects take up near half the processing power of the unit.

Not having to use snapshots also means you can have more flexible ways to organise your sounds, so the ability to compose songs out of sounds, and to compose set lists from songs is something I’m quite envious of. Again, for someone who has a bit of tech savvy the Helix is not a problem, but it’s definitely more usable in the TMP.

There are fewer amp models in the TMP, but the usual suspects are all there and sound good. The one that really caught my ear though was a proper model of Brian’s AC30. Of course you can easily press one of the ACs in the Helix into service, but the TMP was instant Queen, and I really enjoyed it. Both I hasten to say were quieter than the real thing even with 20dB of Rangemaster sim slamming into the front end.

I also think not putting an expression pedal on the TMP was the correct choice. I’m terrified of breaking the one on my LT and always use an external pedal for Wah. The ‘twist the foot pedals for knobs’ is cute, and very immediate, but again, after a few hours with the Helix you won’t notice much difference - the proximity sensor on the Helix pedals means the controls you need are normally assigned to the editing knobs when you need them.

At the moment the Helix wins hands down with its effects. There are again the usual suspects in the TMP, all the food groups are represented, so you’re not going to find yourself unable to create the sound in your head. But that long tradition of modelling, wide ecosystem of products and being much earlier to market means you have so much choice for effects in the Helix. This surely will be rectified by Fender over time, but if you were into ambient and wanted to do your thing in a modeller right now, you’ll find it easier with a Helix.

And that’s pretty much it. The TMP is trivially easy to use, sounds great immediately, but it’s earlier in its product development lifecycle. The Helix keeps up, is thoroughly debugged, and rewards tech savvy users with a flexible and powerful architecture. Isn’t it great we have all these products!

Did anyone mention the ‘on’ light on the TMP is a classic fender jewel light? :-)
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Re: Fender Tone Master Pro

Post by Music Wolf »

It's interesting to hear the opinions of rational people who have actually used the TMP (and compared it to the Helix). I've only been able to listen to a few YouTube reviews, I've not tried the TMP for myself, but I'd formed the view that there wasn't much in it in terms of sounds. Reading on another guitar forum on the day of its release you'd have thought that the TMP was the worst piece of kit ever to hit the streets (naturally none of these people had seen one in person, but that's never been an obstacle to having a strong opinion).
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Re: Fender Tone Master Pro

Post by Wonks »

The first firmware update did introduce quite a few new amps and effects, so the v1.0.0 firmware will have looked rather sparse from that point of view, especially given the price.

And I really don’t think the chosen mic positions on a lot of the presets were well chosen. They might give you the sound you hear on the track the preset is trying to emulate, but we know that that will probably be quite different to the sound coming from the amp. Change the mic position and the sound can change from very muffled to very sharp.

And then there’s the stereo/mono output selection that wasn’t at all obvious to me at all. The default is stereo, So it is OK if you plugged into a stereo rig or to a stereo track in a DAW, but if you plugged into the left output expecting a mono mix, you won’t get it (without setting the output to mono in the global selection). In fact the left output could be considered the secondary output, in that it is the ‘pong’ channel (i.e. if you had a ping pong delay, the initial ‘ping’ would be the right channel and the following ‘pong’ on the left).

As I’ve said before, most people are used to the left output of synths and rack effect unit as being the mono output, so it’s easy to get it wrong if you don’t know. I certainly did.
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Re: Fender Tone Master Pro

Post by sonics »

Music Wolf wrote: Wed Dec 13, 2023 1:53 pm It's interesting to hear the opinions of rational people who have actually used the TMP (and compared it to the Helix).

A friend of mine (good, experienced guitarist with access to lots of gear) was not persuaded to trade his Helix for the TMP. He did pick up a couple of the FRFR cabs, though.
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Re: Fender Tone Master Pro

Post by Sam Spoons »

I have a Headrush Gigboard and, IMO, how you programme it is the most important factor WRT sound, I reckon they can all get very close to the sound in your head. But, I still prefer to use my analogue pedals and my 18 watt combo as I have yet to quite get the Headrush to give me the sound I want, it's very close but something is missing and I'm not clever enough to find it in the Headrush...
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Re: Fender Tone Master Pro

Post by arkieboy »

To be fair to Fender, it isn’t immediately apparent from the Helix signal path if you’ve lost stereo or not either, but if you select a block on the path, you get to see if it’s a mono or stereo block immediately.

I mean, double the line thickness/have two lines one pixel apart/colour code the lines - it’s not exactly hard …

I played with Wonks’ TMP after the update, so if you buy one, make sure you check the firmware version and update if necessary.

I haven’t been to Chez Lapin since Wonks purchased the Fender FR, so I didnt compare my Laney with it. While the Laney serves me very well indeed and is flat enough to be a good monitor for the synth bit of my rig too, the EQ options are more flexible on the Fender, the Fender weighs quite a lot less, and would fit into a traditional setting much better.

This is pertinent because I lug an AC30s1 to Swing band rehearsals and gigs because it looks the part and weighs much less than a trad AC30, which is my fave amp and is just too heavy to own (I have had one!). The Fender FR is (I think) less than half the weight of my s1, and I already had definite GAS WRT the Tone Master Twin/Deluxe.
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Re: Fender Tone Master Pro

Post by Wonks »

The third firmware update is now out for the TMP, a bit over three months since the last one. Rather a damp squib.

It's fixed some bugs, updated a few of the existing amp models but the only new item is a single 4x12 cab model. Something I wasn't holding my breath for.

I was expecting at least a few more amp models or FX models.

I mean, even the Mustang range has a Hiwatt 103 amp model.

Hopefully the next update will come along quickly.
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Re: Fender Tone Master Pro

Post by Dave.P »

Many thanks for posting a real world appraisal of the TMP.
As an owner of a Tonemaster Deluxe Reverb it is tempting for me as I get that plus a whole lot more.
The general consensus seems to be the sounds are pretty much as good as other units, some better, especially on the Fender ones of course which you would hope they were!
Everyone will have their own opinion and requirements of course.

It seems to have found an area for folks who are interested in digital but have been put off by complicated blocs and hieroglyphics to dial in sounds on some units.

Would be very interested to hear your thoughts now it has been with you for a while.
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Re: Fender Tone Master Pro

Post by Wonks »

It’s still not as dynamic or responsive as a real guitar amp is. I’ve only played a Helix for comparison and I’d say there’s not a lot between them in that respect.

But that’s when heard in isolation. In a band setting or in a recording mix you loose that fine transient detail, and only hear the broader picture, when it’s very close indeed.

There’s just that niggle that it’s not a 100% replacement for a real amp that stops me enjoying and playing it more in its own right. But I did mainly get it for recording purposes and for that it’s brilliant.

The TM12 FRFR cab is probably not doing it any favours. I find it has a rather resonant and boomy response on the bottom end, so the master graphic is cutting that right back within the TMP, as well as the bass control being rolled back on the TM12. Which is probably affecting the bass end in too general a fashion when it’s a more specific frequency region that needs cutting.

I did prefer the sound slightly more through Arkieboy’s Laney 12” FRFR cab, but that’s bigger, a lot heavier and doesn’t have anything like the tilt-back capability the TM12 has.

I must compare the TM12 to the TM10 at some point, as the smaller speaker may not have all that resonance. And I’m yearning for a stereo rig to make the most of the effects and twin amp paths, and two TM10s are a much smaller package than two TM12s.

I still haven’t got around to swapping out the TL074 opamp chips in the TM12 for quieter ones to cure the HF hiss, and when I do take it apart, I’ll see if there are any reflex ports I can try blocking for less bass.
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Re: Fender Tone Master Pro

Post by Wonks »

And practically, Fender need to sort out being able to back up individual patches to local storage be it an SD card or your own computer. The last firmware update overwrote my own few patches and whilst I had a bulk dump of everything saved on my PC, the ability to save/load single patches seems so much more convenient.

I had overlooked the fact that the last update did include using the ‘heel down’ expression pedal position to turn the pedal off and on, rather than have to use one with an additional end switch (something the Helix can do). So now you can spend £18 on a Nektar expression pedal rather than £180 on the Fender promoted Mission Engineering pedal without having to adapt one to add a switch.
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Re: Fender Tone Master Pro

Post by Dave.P »

Seems strange there is no preset backup - perhaps for the SD card as you say but it should have been on the minimum requirements list I would have thought.
Is it to stop 3rd party folk from doing anything?

I have a Nectar expression pedal and a Headrush 12" FFR speaker but would have thought the Fender speakers were made to match....

Still saving some pennies and waiting for my nerve op to heal, so no rush.
As said good to get some proper feedback from someone that knows what they are doing!
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Re: Fender Tone Master Pro

Post by Wonks »

Individual backup and restore can be done to the Fender cloud, but that's an open-to-all mass of individual presets. You can filter by your name, but it's less than ideal for general use. And of course sometimes you want to be able to do some local backups in case there's no internet access.

It's supposed to be on their to-do list. But I do wish they'd get it done sooner rather than later.

All the best for a full recovery.
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Re: Fender Tone Master Pro

Post by Wonks »

I finally got round to swapping out the op-amp chips in the TM-12 for much quieter ones. Now the wife can't tell it's on at all unless it's turned right up to maximum volume when there's the very faintest of hisses.

It's really not a sophisticated cab at all (as you can see with the front grille off). There's no DSP (unlike some of the PA-speaker based alternatives) and so there's a simple crossover feeding the power amps.
Image

I tried blocking the 'ports' in the cab to reduce bass resonance and whilst it did stop the resonance, it also affected the sound up into the midrange, to the extent that I much preferred it with the ports open.

Also, given that the power amp is sitting inside at the bottom of the cab, blocking the ports totally will stop any ventilation and cooling for the amp occurring, which is probably not a wise thing to do.

There's a minimal amount of acoustic wadding stuck to the back panel of the cab, so I'm planning to add a fair bit more.
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Re: Fender Tone Master Pro

Post by sonics »

I'm intrigued by the use of air movement from cone excursion for amp cooling, instead of a fan! :eh::D

It does look like very basic, old-fashioned design. What's the tweeter?

(I have a friend who's replaced some Headrush cabs with these, I think.)
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Re: Fender Tone Master Pro

Post by Wonks »

I’ve yet to remove the speakers to have a good look, but it does initially look rather piezo-like. Fender just say ‘1” high dispersion driver’ in their specs, so it could be a small compression driver.

I will report back once I know.
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Re: Fender Tone Master Pro

Post by Wonks »

A lot of PA and monitor speakers use the driver air movement for amp cooling. My old Adam A7x speakers had internal amps with no connection to external heatsinks.

One blew up when just sitting there for a while with no sound going to it, and I have my suspicions that the lack of ventilation with no speaker movement was a contributory factor.
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Re: Fender Tone Master Pro

Post by Martin Walker »

Wonks wrote: Thu Mar 14, 2024 10:38 pm I finally got round to swapping out the op-amp chips in the TM-12 for much quieter ones. Now the wife can't tell it's on at all unless it's turned right up to maximum volume when there's the very faintest of hisses.

Well, as fully qualified nerds, we absolutely NEED to know what opamps you used to replace the bog standard noisy TL074's :ugeek:
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Re: Fender Tone Master Pro

Post by Wonks »

I keep calling the Fender FRFR speakers the TM10 and TM12, when in reality they are FR-10 and FR-12. Do'h!

And they weren't TL074s, they were TL084s!

They were replaced by TI OPA4227 chips.
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Re: Fender Tone Master Pro

Post by Martin Walker »

Wonks wrote: Sun Mar 17, 2024 4:26 pm And they weren't TL074s, they were TL084s!

Boo! Hiss!

Wonks wrote: Sun Mar 17, 2024 4:26 pm They were replaced by TI OPA4227 chips.

In which case Boo! Silence!
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Martin Walker
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Re: Fender Tone Master Pro

Post by Wonks »

The acoustic wadding came so I tool the speakers out of the FR-12 to fit the extra wadding.

The 12" chassis speaker is a no-name unit, simply marked with an 8 ohm, 150W sticker and a Fender part number. Probably of Chinese supply. The usual suspects like Eminence or Celestion, don't do anything similar and for both Eminence and Celestion the minimum power rating for a 12" PA speaker is 300W

Given that the power amp is 300W with a 1000W peak rating, this 150W rating does seem rather low. You'd certainly have to push the unit to excessive volume levels before speaker burn-out became a risk, but I'd have expected a 300W rating as a minimum.

The tweeter is a no-name piezo unit with just an 8-ohm sticker on the rear.

Given that you can get active PA speakers with proper compression drivers and main drivers with much higher power ratings and DSP for less, you do feel rather short changed.

The good news is that the extra acoustic wadding has helped tame that boomy low end, so I don't need to roll off the bass control.
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Wonks
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Re: Fender Tone Master Pro

Post by adrian_k »

Martin Walker wrote: Sun Mar 17, 2024 4:59 pm
Wonks wrote: Sun Mar 17, 2024 4:26 pm And they weren't TL074s, they were TL084s!

Boo! Hiss!

Wonks wrote: Sun Mar 17, 2024 4:26 pm They were replaced by TI OPA4227 chips.

In which case Boo! Silence!

Actual audible chuckle at that, thank you :)
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