Recent content by 20minc

Yes, I did measure each of all 4 output tubes and it`s all 0.08vdc. I thought too somebody set it to 0.08v because it`s all same reading. I did use 3 different DMM and read all same. Can amp works with that low bias voltage?

Thank you for reply. If I adjust bias to 0.35v-0.40v sound will improve?

Hello. I bought used Yaqin MC-10L. When I check bias voltage it`s only 0.08v. It should be between 0.35v-0.4v. Amp sound is good I think. Should I adjust it? What kind tool should I use?

He said it`s 2b but pic looks like 2a and connector is custom maid so I don`t know until open it up.

Just Wondering what are the differences between SDA 2a vs SDA 2b?

Thank you all for kind reply. I`m gonna pick up SDA tonight. For the power I`ll be using Hafler DH 500.

He just asked $400 for Walsh 4. I guess I`ll go for SDA 2b.

Here`s some pictures. I don`t know why he screwed down so much on SDA2 tweeter.

I don`t know about condition of driver. He said sound is no problem and out side looks little dusty but ok. With SDA 2b every thing looks good with custom made interconnect cable, and he replaced tweeter with RD0194. I don`t know which one, I want to buy both but I only have $300.

Hi. I have chance to have SDA 2b and Walsh 4 for $300 each. Witch one should I get? Is $300 too much? help me!