Nifty solution
heiney9
Posts: 25,575
I've had a heck of a time swapping certain discrete opamps in the Keces HA-171. The desktop chassis and smaller pcb makes space limited. I really don't like the sound of LME49710 opamps at all. They are popular because they have high gain and make music "pop". But to my ears they are shouty, shrill, edgy and in every case I get listening fatigue pretty quickly.
The final output stage of the Keces uses one. The Dexa Ultimate II discrete op-amps are modeled after 2A3 tube sound. They are very smooth, engaging, throw a huge sound stage and detailed and fast but the opposite of edgy, shrill and shouty.
The way they are packaged made it impossible to use without one of the caps (brown Elna) getting in the way. Originally I used a 35mm 8dip socket extension that raised it up over the cap, but they the lid didn't fit. It's too far away and it starts oscillating and becoming noisy, etc.
DC at the output was close to 90mV (not good). But there were other things that caused the DC issue, but having it raised 35mm above the pcb didn't help.
I was using AI to come up with a solution and I found these from a company called Electronic Surplus. Before consulting AI I tried to Google Right angle dip 8 socket and nothing came up.
https://www.electronicsurplus.com/aires-8-823-90c-connector-ic-socket-right-angle-8-dip
Worked PERFECTLY for what I needed.
Thought I'd post for anyone who this solution might work for. Didn't know these existed.
H9
The final output stage of the Keces uses one. The Dexa Ultimate II discrete op-amps are modeled after 2A3 tube sound. They are very smooth, engaging, throw a huge sound stage and detailed and fast but the opposite of edgy, shrill and shouty.
The way they are packaged made it impossible to use without one of the caps (brown Elna) getting in the way. Originally I used a 35mm 8dip socket extension that raised it up over the cap, but they the lid didn't fit. It's too far away and it starts oscillating and becoming noisy, etc.
DC at the output was close to 90mV (not good). But there were other things that caused the DC issue, but having it raised 35mm above the pcb didn't help.
I was using AI to come up with a solution and I found these from a company called Electronic Surplus. Before consulting AI I tried to Google Right angle dip 8 socket and nothing came up.
https://www.electronicsurplus.com/aires-8-823-90c-connector-ic-socket-right-angle-8-dip
Worked PERFECTLY for what I needed.
Thought I'd post for anyone who this solution might work for. Didn't know these existed.
H9
"Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Puritan Audio PSM136 Pwr Condtioner & Classic PC's | Legend L600 | Roon Nucleus 1 w/LPS - Tubes add soul!