Yes, I moved the bridge that used to join terminals 6,7 and 8 over so It now only bridges 7 and 8.
ADS-910's
- Thread starter GD70
- Start date
Yes, I moved the bridge that used to join terminals 6,7 and 8 over so It now only bridges 7 and 8.
Thanks for the explanation Overlord! I appreciate it. Makes sense.
liteagilis
Active Member
I owned the 710's and 1290's at the same time. I listened to the 710's more but it may have just been the size of my room or the amp I was using them with. I sold the 1290's last year when I needed the money. I sold the 710's to a guy I know who really wanted them. The 810's I bought for $50. Found them boomy and moved them quickly. But the 780's have the highest WAF. Small boxes in great shape. Nice little stands. Really nice grills. Plus I love the ads done mid and tweeter. Also they sound great with small tubes and big solid state amps alike. So I've had them in my living room for a good long while. Other sets have been in and out. Currently the other 'in' is ESS AMT 1D's. They both will likely get displaced for the 910's. But we'll see. Or if I ever find a tweeter for my Thiels.... Either way. I'm excited and happy to give the 910's a go.
Sounds great. Although the 910's are huge so hopefully the WAF doesn't go code red on you.
GD70
Lunatic Member
Why do you feel you need to change the cap? ADS used high quality caps, and many including myself, have left the crossovers alone.
Glenn
GD70
Lunatic Member
I'd resolder the original. I would only replace if it's out of spec, it leaked, or you're hearing distortion. You got a very good deal! Post some pics!
Glenn
GD70
Lunatic Member
Commodore999
Member
When I bought my 910s in Phoenix, I took them to Richard So. He checked them out and recommended replacing the tweeters and mids, even though they were working. Which I did. I asked him about the crossover and he said they only thing he would check would be the electrolytic cap. I pulled them and tested them. They were off spec, in the high 70's to low 80's. ( I have a device that is set up to check capacitance, not a multi-meter.) I bought 90uf 250vdc caps from Parts Express, just to see if they would make a difference. I did not want to spend the big dollars for expensive oil caps.
There was much more bass than before. The caps fit with a little creativity. I'm not sure that I'll stay with them but it was a good place to start for me.
There was much more bass than before. The caps fit with a little creativity. I'm not sure that I'll stay with them but it was a good place to start for me.
GD70
Lunatic Member
Good information Commodore. I must say, the bass from the 910's is incredible and hard to imagine there being even more bass output from these beasts!
Did you happen to take any pics of the crossovers with the new caps?
Glenn
Yup. While you are at it, be sure to check all the other solders on the PCB including for teh coils. There were several on mine that were giving up, along with a loose one of the electrolytics like yours. Also make sure the fuses are all the correct values and deoxit those 3 switches. Yes, more than likely the rectangular caps are okay. Just check their solders.
The biggy was black the 6 slotted receiver. Tighten those by prying them a little. They seem to get a little loose over time and you start getting drop outs in the signal to the drivers.
The biggy was black the 6 slotted receiver. Tighten those by prying them a little. They seem to get a little loose over time and you start getting drop outs in the signal to the drivers.
Commodore999
Member
Sorry, no photos. I'll check later, but I don't think I took any. It was over two years ago. The speakers are in storage, while I'm working overseas.
I'm not sure the speakers were operating at their best before the recap. It was a noticeable difference. I can't imagine that the new caps would make that much of a difference if the old caps were working properly.
Commodore999
Member
I'll check later for the photos and post them if I do. I'm at work now. I took the Parts Express cap and bent the leads around the cap. I think there was enough space for the cap to be glued to the board, but I did not complete that step. The cap fit but it was tight. I was trying to avoid adding a second level to the crossover to hold the cap, as others have done on the 1530 crossover.
I bought I kit of electronic testers from Peak in the UK. http://www.peakelec.co.uk/acatalog/jz_special_offers.html (Atlas Star Pack) One unit tests transistors and the other capacitors. Both items need to be out of the circuit, though. Handy if you're checking components before installation or matching their values.