Ampster or small tube amp or DSP or ……..

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Re: Ampster or small tube amp or DSP or ……..

Post by Wonks »

It will be taken after most/all of the preamp, so any drive and EQ will be present in the DI signal. It’s certainly an option but a direct DI will give more choice if you don’t use the miked signal.
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Re: Ampster or small tube amp or DSP or ……..

Post by IAA »

I have a Blackstar ID10 and a positive grid spark. I think neither have a loop?

In an ideal world I’d like to mic up the amp and have a clean DI direct to the instrument input on the interface for fun and games ITB. The mic signal will be crunchy and a bit of room.

So that’s why I thought audio splitter.

Cheers chaps.

Ian
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Re: Ampster or small tube amp or DSP or ……..

Post by ef37a »

IAA wrote: Fri Mar 24, 2023 1:36 pm I have a Blackstar ID10 and a positive grid spark. I think neither have a loop?

In an ideal world I’d like to mic up the amp and have a clean DI direct to the instrument input on the interface for fun and games ITB. The mic signal will be crunchy and a bit of room.

So that’s why I thought audio splitter.

Cheers chaps.

Ian

https://blackstaramps.com/wp-content/up ... ndbook.pdf

The headphone output is speaker emulating though it will of course kill the internal speakers* I would also say that recording the speaker output of THAT particular type of amplifier might not be the best way to go.

Then the amp is of course a USB interface as well so that is another recording option.

*I would bet the speaker kill is not done 'mechanically' and you might be able to defeat it in software? Blackstar will I am sure be pleased to advise.

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Re: Ampster or small tube amp or DSP or ……..

Post by The Elf »

IAA wrote: Fri Mar 24, 2023 1:36 pmIn an ideal world I’d like to mic up the amp and have a clean DI direct to the instrument input on the interface for fun and games ITB.

But that's why you need a DI. Not sure why you chose a splitter? It may work perfectly well, I suppose...

The idea is that you plug your guitar into the DI. You connect the 'thru' of the DI into your amp. You connect the balanced XLR output of the DI into a mic input on your interface.

Now you record the mic in front of the speaker at the same time as you record the 'clean' signal from the DI box. With that 'clean' signal you can now send it back to your amp (via a re-amper box), use a plug-in amp simulator, or anything else you like.
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Re: Ampster or small tube amp or DSP or ……..

Post by IAA »

The idea is that you plug your guitar into the DI. You connect the 'thru' of the DI into your amp. You connect the balanced XLR output of the DI into a mic input on your interface.

Yep got that now :headbang: I thought the splitter woukd offer two outputs of the source - one to the amp the other the interface instrument input.

I would also say that recording the speaker output of THAT particular type of amplifier might not be the best way to go.

Is that because it’s modeled anyhow Dave?

Keyboard recording was far easier, but hey I’m learning stuff!

Thanks.

Ian
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Re: Ampster or small tube amp or DSP or ……..

Post by Sam Spoons »

IAA wrote: Fri Mar 24, 2023 3:24 pm
The idea is that you plug your guitar into the DI. You connect the 'thru' of the DI into your amp. You connect the balanced XLR output of the DI into a mic input on your interface.

Yep got that now :headbang: I thought the splitter woukd offer two outputs of the source - one to the amp the other the interface instrument input.

You are right, it would work and the splitter you link to would get the job done but a DI is the 'conventional' method and has a few advantages over a simple split signal*, primarily that the signal between the DI and the interface is balanced (and at mic level though that is principally a benefit when sending the signal down a snake to a PA desk). A secondary benefit is that you haven't got an extra guitar cable adding capacitance and reducing treble (AKA 'tone suck') to the guitar side of the system.

* And a Orchid Classic DI was about £20 cheaper than the box you linked, he no longer shows prices on the website so you'll have to email him for the current price

http://orchid-electronics.co.uk/classic_DI.htm
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Re: Ampster or small tube amp or DSP or ……..

Post by Wonks »

Or creating an almost certain ground loop with mains powered amps or halving the overall input impedance the guitar feeds into.
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Re: Ampster or small tube amp or DSP or ……..

Post by Sam Spoons »

John is not selling Orchid products direct anymore which means prices have gone up considerably, Pre covid a Classic DI was £36 it's now £54 from Showbitz.co.uk That's still half the price of a Radial DI mind you...

https://www.showbitz.co.uk/product/orch ... ic-di-box/
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Re: Ampster or small tube amp or DSP or ……..

Post by ef37a »

"I would also say that recording the speaker output of THAT particular type of amplifier might not be the best way to go.

Is that because it’s modeled anyhow Dave? "

Well possibly a bit but it also has two speakers and so you would have to back the mic off somewhat to 'integrate' the sound (might be a mono option mind?) The speakers are also not conventional 'guitar' speakers and the sound of the IDs is made 'guitarlike' by the amp's processing. Might work! Never tried, just a feeling. Actually my son has an iD Core 40, might get him to slap a 57 on it and send me a lick?

Yes, DI boxes do have the advantage that you get a balanced mic level signal and ground lift (though I am virtually certain the IDs are earth free?) Most however just passively split the incoming guitar signal so it is still loaded by the DI box and whatever the split goes to. However, interface HZ inputs are very variable, some are as low as 100k Ohms and even a few guitar amps are 470k. Not something people have seemed to notice in isolation.

Ooops! Just seen from Sam's link that the Orchid DI DOES have a buffered output for the guitar split. I stand by the fact however that the vast majority do not and just parallel guitar and amp input. Anyone ever seen the Radial schematic?

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Re: Ampster or small tube amp or DSP or ……..

Post by The Elf »

Sam Spoons wrote: Fri Mar 24, 2023 4:10 pm John is not selling Orchid products direct anymore which means prices have gone up considerably...

Damn! That's a real shame. :frown:
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Re: Ampster or small tube amp or DSP or ……..

Post by Wonks »

The Radial J48's input impedance is on the low side at 240k. Not something I'd care for much myself but others use them quite happily, though Radial tend to push them more for passive basses than guitars, where the loss of some top end is often a nice feature.

The Radial PZ-DI would be my choice (if I was buying a Radial) as it offers switchable 240k, 1M and 10M options, so copes with piezos that need a very high input impedance (not all do).

Though with a passive DI, you can always put the guitar through a buffered FX pedal or a clean boost pedal first.
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Re: Ampster or small tube amp or DSP or ……..

Post by The Elf »

Interesting. I've always preferred my Radial J48 for bass and my Red Eye (or Orchid) for guitars. I've often wondered what it is that draws me to these conclusions, but I've also never doubted myself. It's just become something I don't even question. Maybe there's something in it...
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