Immatthewj- That was/is a good little amp. The bad thing was having to take the bottom off the amp to go in and bias it. Never could figure out why Dennis did that. Hopefully you drilled a hole in the chassis and mounted the bias pot and mount a couple test point terminals on the outside also. Makes it much easier. Did that for several people. Sweet sounding amp!
Isolated ground in dedicated room/new construction?
Am building a custom house from the ground up with a dedicated listening room. Room will have have 3 dedicated 20 amp home runs for the system using 10 gauge 10/2 romex with ground, terminating with PS audio IG 120v outlets. Romex NM wire with plastic boxes, no metal boxes or conduit. House will have 400 amp service utilizing two 200 amp panels. With this set up is there any point in setting up an isolated ground and how do I go about it? Is it even feasible?
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- 14 posts total
@harpo75 , actually mine is a SLA-70B Signature, which may be the reason it has the bias pot and the bias jack accessible behind the transformers? That must have been a pita to bias! I don't remember what all the differences were with the Signature vs the SLA-70B (nonsignature) . . . 6550s instead of EL34s, and it has a standby switch on the rear apron that maybe the nonsignature version didn't come with. I get it down every once in a blue moon when my other amp goes down, and you are correct--it is still a swet sounding amp. |
Immatthewj- Just for your reference then if you ever sell it that is the SLA-70B Signature version 2. If you add high quality coupling caps and a beefed up power supply (more electrolytic capacitance and big polypropylene bypass caps) it’s very good still. I have custom fully balanced SLAM-100 mono blocks with separate mono block power supplies running KT150’s. Very nice amplifiers. |
- 14 posts total