[sdiy] CoolAudio?

[Mattias Rickardsson]

Fwiw, Alfa at least makes their AS2180 VCA which seems to be a drop-in
replacement for THAT 2180/2181 in the surface-mount form factor.
https://www.alfatriode.lv/eng/sc/AS2180.php

Can't remember seeing any reports on how they compare, are there any?

/mr

Den fre 4 sep. 2026 20:53Mike Bryant <mbryant at futurehorizons.com> skrev:

> As far as I can work out, the Alfa process is 2 micron BiFETs on 3"
> wafers.   So probably not suitable for the devices THAT are obsoleting, but
> they may be able to produce something compatible.  However their fab is
> kept going by space work, and the audio chips are a sideline.
>
> ------------------------------
> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Quincas
> Moreira via Synth-diy <synth-diy at synth-diy.org>
> *Sent:* 04 September 2026 19:07
> *To:* Sawtooth Glitch <sawtoothglitch at outlook.com>
> *Cc:* SDIY List <synth-diy at synth-diy.org>
> *Subject:* Re: [sdiy] CoolAudio?
>
> Probably best to try Alpha from Latvia 🇱🇻
>
>
>
> Quincas Moreira
> Director | QMA
> mobile:  5534988825
> site:  quincasmoreira.com
> email:  quincas at gmail.com
>
>
> On Fri 4 Sep 2026 at 11:30 a.m. Sawtooth Glitch via Synth-diy <
> synth-diy at synth-diy.org> wrote:
>
> Cabintechglobal.com has stock for several Coolaudio products.
>
>
>
> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> *On Behalf Of *H.Sergio
> Alves via Synth-diy
> *Sent:* Friday, September 4, 2026 7:07 AM
> *To:* Neil Johnson <neil.johnson71 at gmail.com>
> *Cc:* SDIY List <synth-diy at synth-diy.org>
> *Subject:* Re: [sdiy] CoolAudio?
>
>
>
> Cool audio is part of music tribe and they populate most of Behringer
> crap.. doubt they will shut up shop but most likely won’t be selling to
> small timers like us
>
>
>
> On Fri, 4 Sep 2026 at 15:05, Neil Johnson via Synth-diy <
> synth-diy at synth-diy.org> wrote:
>
> Has anyone checked the CoolAudio website recently?
>
> Have they shut up shop as well?
>
>
>
> Neil
>
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