Tri-amp SDA-SRS

Dsaniti

I have tri-amped by SDA-SRS 2.3 speakers for year. That perform great.
I use 2 mono blocks for L/R low frequencies and a stereo for the highs. Jumpers on the speaker inputs removed. Need to connect an extra negative pending post on each of the mono blocks together to establish a common ground as required by the SDA speakers.
Please don’t comment on the room setup. This sucks and will change. I had to keep these in a box for the past 10 years due to travel. I purchased them new back in 1991. Working on constructing a new 20x25 foot listening room to put them as the final home.

engie490

Dsaniti wrote: »

Looks like a nice setup!

Technically, I would call it biamping. You have a stereo amp on the highs and monos on the bass.

But, you're doing it correctly. Assuming those are 565 monos, the 585 is just a stereo version of the 565, so you essentially have the same amp on the top and bottom with identical gain.

Have you tried either the 565s or the 585 by themselves?

On a related note, any capacitor problems in the amps?

F1nut

engie490 is correct, you are passive bi-amping. The reality is to tri-amp you would need 3 separate binding post connections, one for the high, one for the mid and one for the low, but wait there is no bass driver, so you cannot tri-amp.

Schurkey

Yup...looks like fun.

By all means, verify the capacitors in those amplifiers. 565s and 585s were made during the years of Capacitor Plague; if you happened to get amps with the faulty caps, there can be significant damage done to the circuit boards. And it was fairly common with those Adcoms.

VSAT88

Agree ^. Main/driver boards..