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AKSA's Lender Preamp with 40Vpp Output
AKSA's Lender Preamp with 40Vpp Output
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Old Yesterday, 02:06 AM   #791
GASCo is offline GASCo  United States
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AKSA's Lender Preamp with 40Vpp Output
Is that @120v?
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Old Yesterday, 02:22 AM   #792
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AKSA's Lender Preamp with 40Vpp Output
Quote:
Originally Posted by Vunce View Post
My review will not be as eloquently written like Drpro抯 was, but I抣l throw in a few of my thoughts.
Right from the start this preamp has been extremely quiet, no noises of any kind are added when using this pre. I feed it 24v-44v depending on the daughter board/amplifier combo being used and always a black/silent background.
This leads me right to one of my favorite features about this preamp, the ability to swap out the DB抯 for different situations required. Currently, I抦 mainly flipping between my Alpha20 and Big MoFo amplifiers. They represent a huge difference in preamp requirements. Voila!! Install the 揷ustomized?DB抯 for either amplifier and you have one preamp that抯 a perfect match to both amplifiers
How it sounds is very subjective because everyone uses different associated gear, unique room setups and styles of listening. So, I抦 not going to go overboard here, but, two aspects continue to amaze me: a huge soundstage and an incredible amount of articulate low frequency detail. I抣l be passing through my living room and have stop in my tracks because I heard something different in a song I抳e heard 100 times before!
I feel the AKSA Lender Pre is going to stay in my main system for a long time.

Vunce,

That's great, thanks for doing that! Yes, of course there are lots of factors: source, speakers, amps, room, cables, ect., then you add a computer and it gets even more complicated. Anyway, I appreciate the the review.

Cheers,

Greg
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Old Yesterday, 03:51 AM   #793
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Output
Quote:
Originally Posted by GASCo View Post
Is that @120v?
mA bias current at whatever the Vcc is set at (24v to 48v).
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Old Yesterday, 05:12 AM   #794
JPS64 is offline JPS64  Germany
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AKSA's Lender Preamp with 40Vpp Output
I don‘t want to miss it in my setup!

I‘m still waiting for transistors to finish KORG B1 Clone.
I‘m finishing ACA, MoFo, M2 and F6; don‘t forget ALPHA.
I‘m working on a SIT preamplifier using Russian transistors.
FAOW in the pipeline.
SissySIT in the pipeline.

I‘ll report!

PS: no PC, simply Shanling M2 perhaps later DSC2?!

JP
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Old Yesterday, 05:18 AM   #795
GASCo is offline GASCo  United States
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AKSA's Lender Preamp with 40Vpp Output
Quote:
Originally Posted by xrk971 View Post
mA bias current at whatever the Vcc is set at (24v to 48v).


Ok. I misunderstood his question then...

I was curious regarding total consumption since I read that smps that抯 too oversized might be a bad thing...
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Old Yesterday, 05:37 AM   #796
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Quote:
Originally Posted by xrk971 View Post
As a Preamp bias is about 25mA to 35mA per channel. As HPA it抯 100mA per channel.

Thanks X.

Yes, I meant DC, as I was trying to establish whether the boost converter that Twocents is using is able to supply enough juice. Turns out it is plenty beefy at 2A max rating - which I tested and verified yesterday.
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Old Yesterday, 12:50 PM   #797
xrk971 is offline xrk971  United States
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AKSA's Lender Preamp with 40Vpp Output
Twocents:
I had one daughterboard (TH) that I could not get working. Spent 5hrs debugging to no avail. I simply had to abandon it and make a new one in less than an hour. The new one worked fine upon first startup. Sometimes the problems are elusive indeed. I can send you a new pair of TH boards in the paper mail as a letter if you want - no charge. Should get there quickly.
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Old Yesterday, 03:53 PM   #798
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AKSA's Lender Preamp with 40Vpp Output
Quote:
Originally Posted by xrk971 View Post
Twocents:
I had one daughterboard (TH) that I could not get working. Spent 5hrs debugging to no avail. I simply had to abandon it and make a new one in less than an hour. The new one worked fine upon first startup. Sometimes the problems are elusive indeed. I can send you a new pair of TH boards in the paper mail as a letter if you want - no charge. Should get there quickly.
Well thank you very much X, you are always willing to walk the extra mile! I might take you up on that. Still cannot trace the problem, but I have not given up yet. The problem is duplicated as I built the daughter boards in parallel. I also have two other options - wait for Skylar to populate his daughter boards and test them in my setup, and/or get components and populate my SMT daughter boards. I will get there ...
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