New PCBs, do you have a favorite? Vote!

[Bauman]

- plate reverb sound in a 2u chassis, analog please Very Happy

Ha! I wish I could!!!!!

Yea, lets get back to this thread pls!!!

:guinness:
Fabio

 

[Mlewis]

i've now changed my vote to PRR varimu and Andy Millar Summing Amp (check the end of the 9k design background thread and please please please pretty please lay the board out for him!!! we'll all club together and pay for his if you don't want to cover the cost of his boards).


ps.
Pretty please with cherries on!!!

 

[babyhead]

The PRR vari-mu with a DOA output?
Transformer coupled GME-20?

oh yeah...

SSL 9000 summing buss!!!

:thumb:

 

[Bauman]

i've now changed my vote to PRR varimu and Andy Millar Summing Amp (check the end of the 9k design background thread and please please please pretty please lay the board out for him!!! we'll all club together and pay for his if you don't want to cover the cost of his boards).

could you point me to the right msgs??

new toys to the table! nice!!

 

[[silent:arts]]

Andy Millar Summing Amp !!!
(... and you found the thread ...)

 

[synthetic]

Andy Miller summing amp and 553 EQ are on top of my list. I'm also watching the Minimoog project very closely.

 

[Guest]

Maybe a monitor reference amp (obe stage up from the Gainclones we can use)
Maybe Bryston influenced?

 

[Bauman]

I have done some power amp boards to me using LM3886 or something like that. Very clean and detailed... i like them, and they are cheap. Now were did I put that layout :?: :?: :?:
What a mess!!

 

[Guest]

And just so things can get really complicated - didn't somebody around here start playing around with their own HD recording system?

 

[Bauman]

Talking about, LA3, LA4.... have you even took a look on this compressor??

http://voyager.celestial.com.au/~rosswood/diy/singleoptocomp/optocomp.htm

It's Kev's opto, based on LA4...

cheers!
Fabio

 

[AnalogPackrat]

Fabio did the pumped up WHAT compressor with DOAs and transformers last year. I'm still haven't built my pair Embarassed. Have you checked that out?

Has anyone considered the possibility of making a modular multi-band compressor? Seems like all you need is a buffered bandpass filter bank and a summer of some type. You could then patch in whatever compressor you wanted for each band and sum the results. It might also be nice to have some extra summers to allow multiple bands to be combined prior to compression in case you want fewer bands. Multiple outputs per band could allow wacky side-chaining, too. Big project, but potentially really cool. Seems like the majority of the work would be in the filter bank design.

Or for something on the other end of the spectrum of difficulty, how about a simple meter buffer pcb?

Analog Packrat

 

[Bauman]

I did some work on a multi-band (4 bands) filter last year based on a paper from a engimeer friend. The problems with this kind of circuit according him is that when you sum the bands back, the result needs to be as close as the original signal (filter need to be very sharp). His circuit manage to do that, but it needs a 4 deck pot or switch. With that filter prototyped would be easy to throw in 4 channels of any compressor and have a multi-band compressor...

Can be consider a work on progress... :grin: But I dont have an idea when I will be able to get back to it.

:guinness:

 

[AnalogPackrat]

Maybe I should start a new thread on the modular multi-band compressor idea. Glad to know someone else here has been thinking about it at least. Hey, what about the little buffered meter driver idea?

A P

 

[BladeSG]

I'll be overly optimistic and vote for a N*e*v*e 33609, similar to what ijr did some time ago.

 

[quadwould]

I would Vote 33609 or 553 with option to be upgraded/modded to 550(a or b)

 

[nik--]

what about Jakobs PCB's for his Tube Headphone Amp ??


maybe interesting for most of us to have a good headphone AMP, also looks not too expensive. and looks like it's sounding good :grin:


NIK

 

[nik--]

**** PC

 

[nik--]

sorry double post

 

[enthalpystudios]

interesting you mention power amp...

i can't do all this cool stuff myself, but i've been thinking it would be real cool, especially for some people starting out equipment wise, to have basic type stuff, little studio necessity type things

like a power amp, or a headphone amp, or m/s decoder, or a few other things slipping my mind atm.... anyway, i don't have great schems or layouts for things like these, but they seem like they could fit more than one on a eurocard, like a studio basics kind of thing....

just a thought

honestly, though, la3/la4 or this andy millar ssl summer have my votes..... both could be pretty cool....

billy

 

[Mlewis]

i havent looked there for quite a while but there's schematics for a reverse engineered Pass Labs X series amp over on DIYAUDIO. it's a 100 watt version which can be scaled to whatever you want by adjusting the biasing and perhaps a bit more cascoding. Nelson seems fairly happy for people to DIY them but is only ok with people giving away spare boards - not selling them.

i like the poweramp idea though, i could certainly use one.