Hmm, an NE5534 driving a 10k input at +22dBu will push about 1.4mA peak into the load so AFAICT is it not straying out of class A?
If course if people are daft enough to insist on 600 Ohm operation!
Dave.
Power draw of 3 PC's
Re: Power draw of 3 PC's
James Perrett wrote: ↑Wed Apr 30, 2025 7:44 pm One reason for my cynicism is that Audient seem to be clearly trumpeting their discrete op amp Class-A preamps
https://audient.com/technology/mic-pre-technology/
yet the pictures here
https://khronscave.blogspot.com/2021/02 ... rdown.html
quite clearly show 5532 ICs behind the mic inputs. I also don't remember seeing discrete mic preamps when I had to take my ASP-008 apart to fix it. Yes, they may be using more than just the usual pair of transistors right at the input but the 5532s are doing much of the work. So it appears that Audient think that 5532s count as Class-A discrete op amps!
Oh dear, that IS a damning exposé!
I shall now look upon my Audient Mico in a slightly new light
- Martin Walker
Moderator -
Posts: 22121 Joined: Wed Jan 13, 2010 8:44 am
Location: Cornwall, UK
Contact:
Re: Power draw of 3 PC's
Martin Walker wrote: ↑Thu May 01, 2025 10:46 am I shall now look upon my Audient Mico in a slightly new light
They're good preamps - they've just let their marketing people get a little carried away recently...
- James Perrett
Moderator -
Posts: 16373 Joined: Mon Sep 10, 2001 12:00 am
Location: The wilds of Hampshire
Contact:
JRP Music - Audio Mastering and Restoration. JRP Music Facebook Page
Re: Power draw of 3 PC's
Show me a company where that hasn't happened! 
But there is so much ignorant fetishistic nonsense about 'class-A' not only in manufacturer's brochures but across the Interweb and especially in the loony hifi brigade.
But there is so much ignorant fetishistic nonsense about 'class-A' not only in manufacturer's brochures but across the Interweb and especially in the loony hifi brigade.
- Hugh Robjohns
Moderator -
Posts: 42812 Joined: Fri Jul 25, 2003 12:00 am
Location: Worcestershire, UK
Contact:
Technical Editor, Sound On Sound...
(But generally posting my own personal views and not necessarily those of SOS, the company or the magazine!)
In my world, things get less strange when I read the manual...
(But generally posting my own personal views and not necessarily those of SOS, the company or the magazine!)
In my world, things get less strange when I read the manual...