[Ferrari]

Quote:

Originally Posted by gyrodec /img/forum/go_quote.gif Ferrari So how does it sound?

It sounds much bigger than what you probably would expect from a mini-amp like this.
The sound can be summed up in one word: "neutral". It lets the music in its own value, no audible additional noise or coloration.

Connected to my old Marantz CD63KI CD-player, it plays very loud (almost too loud for me) via my Sennheiser HD650,
with the volume knop at ~13 o'clock, unless the effective gain is only 2x.

Note that my little amp is feeded by a ±18V σ22 PSU (a bit higer than recommended).

 

[Ferrari]

Quote:

Originally Posted by fierce_freak /img/forum/go_quote.gif Yes, Ferrari, I'd be interested in how you'd compare it to some of your other amps (particularly the b22) as long as you have enough voltage from your source to play with.

Ohhh... this is once again a "very standard, out of the box" question I often received by PM/or email.

What are you expecting from 2 amps of totally different design topologies, purposes, segments, price classes (and..., and..., and.........) ??? Thinking of comparing a Volkswagen Golf with a Porsche... you know what I mean?

 

[el_matt0]

Quote:

Originally Posted by Ferrari /img/forum/go_quote.gif Ohhh... this is once again a "very standard, out of the box" question I often received by PM/or email. What are you expecting from 2 amps of totally different design topologies, purposes, segments, price classes (and..., and..., and.........) ??? Thinking of comparing a Volkswagen Golf with a Porsche... you know what I mean?

ahh this makes me sheepishly grin as i glance at my glorious 4 channel beta 22. now only if i had a porsche...!

 

[luvdunhill]

Quote:

Originally Posted by Ferrari /img/forum/go_quote.gif The sound can be summed up in one word: "neutral". It lets the music in its own value, no audible additional noise or coloration.

yup, yup, yup... sounds like the perfect tape loop buffer

which output devices did you use?

 

[fierce_freak]

Quote:

Originally Posted by Ferrari /img/forum/go_quote.gif Ohhh... this is once again a "very standard, out of the box" question I often received by PM/or email. What are you expecting from 2 amps of totally different design topologies, purposes, segments, price classes (and..., and..., and.........) ??? Thinking of comparing a Volkswagen Golf with a Porsche... you know what I mean?

I understand what you are saying, but if you just forget about design topologies and purposes and price classes...how does just the sound compare? Nothing else matters.

 

[Ferrari]

Quote:

Originally Posted by luvdunhill /img/forum/go_quote.gif yup, yup, yup... sounds like the perfect tape loop buffer which output devices did you use?

Output transistors are Toshiba 2SC3422/2SA1359. The large heatsink allows quiescent current biasing at 50mA.
For using as tape loop buffer, you don't need to set the quiescent current that high (as I did), 15mA is more than sufficient.

 

[luvdunhill]

Quote:

Originally Posted by Ferrari /img/forum/go_quote.gif Output transistors are Toshiba 2SC3422/2SA1359. The large heatsink allows quiescent current biasing at 50mA. For using as tape loop buffer, you don't need to set the quiescent current that high (as I did), 15mA is more than sufficient.

yes, I have it set around 18mA actually. I'll see if I have some pics lying around.

 

[Killercrush]

Found your pics ?! (Subtle thread revival!)