Review of Altmann BYOB Amplifier & Attraction DAC:

Hi Charles,

I find the amp/DAC combination really amazing.

It is the only amp on my 108 dB/W/m sensitive horn speaker (Avantgarde Acoustic Trio) which does not have any noise at all!

All the other amps I have ever tried (and I tried quite a lot and very expensive amps) just got some noise through the horns.

Your amp is absolutely dead quiet.

It has a pure tone which is very involving, to be honest I did not hear anything better on my horn speakers ever, and I was using a very rare Audio Note Kageki (the original one, designed by Kondo, serial number is 3) for six years before I sold it few weeks ago to an Italian collector.

Your products are just not comparable to anything else, because of the purity they have.

You are either lucky or really clever :-))


Penna Media

am 23.10.2006 10:04 Uhr schrieb Ferenc Koscsó unter

Hi Goran,

I do not know if Charles's amp better or not as the Kageki was. Music
listening is so subjective and unpredictable. But one thing is for sure: I
have never listened so much music since I got my BYOB amp and the Attraction
DAC. Forget about hifi and sound, enjoy the music, this is what you get.

Best regards


On 10/23/06 12:32 AM, "Goran" <> wrote:

> Thank you Ferenc,
> I bet if you changed from Kageki to Altmann's Amp than I should not even
> think about is it going to sound better than my 45 amp.
> Your reply is exactly what I wanted to hear and I already contacted Altmann
> for a quote. I am seriously interested to buy his DAC and Amp very soon.
> Regards
> Goran
>> From: Ferenc Koscsó <>
>> Date: Fri, 20 Oct 2006 23:01:51 +0200
>> To: <>
>> Subject: Re: BYOB
>> Hi Goran,
>> Actually I sold my Audio Note Kageki (some 50k GBP amp), then my EAR 834T
>> (very good for the price) and settled with the BYOB amp. I can not imagine
>> better amp for my taste to be honest. Before the Kageki I owned a 45 amp,
>> built with the best Tamura amorphous core transformers, 83 rectifier, RCA
>> 45, so all the best stuff. The BYOB has no signature like even the best
>> trioed amps and ss amps have. It is simply natural and inviting at the same
>> time. It should have to be a killer app with your Exemplar speaker.
>> I know Charles Altmann quite well, he is a honest and knowledgable guy, and
>> I like his products really much. Dick Olsher was absolutley right, I think
>> the hype around Altmann products are justified, probably the bargain of the
>> century. Charles is using an Altec VOT ( enclosure from the same spruce wood
>> as his products) for the developments and music listening and he changed to
>> his battery driven amps from 2A3 amps. Not without reason. YMMV of course.
>> Best regards
>> Ferenc
>> On 10/20/06 6:40 AM, "" <> wrote:
>>> Audio Asylum Email from kaaos:
>>> Hi Koscof,
>>> I've seen your posts on AA about BYOB DAC and amp. I have a similar system
>>> (in some way) to yours and would like to ask you few things because I am
>>> thinking of buying BYOB Dac and Amp.
>>> You have a well regarded aplifier and I wonder if you end up replacing it
>>> with BYOB amp and what are your thoughts. Does it sound as good as good
>>> tube amp. Can I expect any improvements over my SET 45 amp or I am just
>>> dreaming?
>>> I like the idea of BYOB Amp because in my case that extra power (my amps
>>> are 1.5W per channel) could help. I am using eXemplar Horns which are 103dB
>>> sensitive but would like to try more powerful amp on them...
>>> I also have APL-3910 player and I am thinking of selling it to get BYOB Dac
>>> and some good transport.
>>> And at the end what are your thought on Altmann's pruducts. Are they so
>>> good as he or Dick Olsher says?
>>> Thank you
>>> Regards
>>> Goran


This is a review of the Altmann BYOB Amplifier, Attraction DAC, Creation ADC, Altmann Phono Stage, , BYOB Speaker System, Altmann Acoustic Panel, Altmann UPCI (Ultra Precision Clock Injector) or Altmann JISCO (Jitter Scrambling Decorrelator).