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You will poop your pants.
Yes, the cleaner the power the better the sound for these amps. Best bang for the buck is the DIY 193L choke conditioner I mentioned in the modifications thread. It's the one tweak I am a fanatic about. Once you try it you'll never go back (only forward, like with say, dbe's Buss's). You will poop your pants.Ok maybe not. Like I said, it's the one thing I'm a fanatic about...
I had excellent results with the Felix conditioner (as described in the Lab) on the Class D amp I auditioned...parts cost will run you less than $30.My build, when I get around to it , will incorporate a Felix as part of the power supply.No need to go spending $$$...
Had to do some searching to find the thread, but I believe this is the one. http://www.audiocircle.com/index.php?topic=81223.0When I get one of these I'll wire a ground connection from outlet ground to the transformer case for safety. I don't believe it will have any audible effect. But it could save your bacon if a winding on the choke should ever short to the case (extremely unlikely!). If that did happen and you touch the choke and anything else grounded you are in for a good shock. The safety ground wire should prevent that potential (no pun intended) shocking experience.Rod
Okay, back on topic: Let's say I have a CDA-224 and a CDA-254, each with their own power supplies. I can still do a bi-amp setup, 224 w/ tweeters and 254 w/ woofers, despite the difference in power (120 vs. 250), right?
I have been searching for an SMPS for the Class D audio amps for a while and finally found one. http://connexelectronic.com/product_info.php/products_id/118?osCsid=b0fbhen2sto5c1euaf4vrp4h02 Hooked it up to my CDA-254 and it sounds amazing. Even better than my modded linear power supply with 6x6800uf 63volt caps. The main reason I wanted the SMPS500R was because of the size. It is about 4"x4" , so now a reasonably sized 5 or 7 channel Class D audio amp is possible. Cristi the owner of connexelectronics is very helpful and makes a great product. Highly recommend
raindance, looking forward to your info on grounding.OK I've got another WOW experience to report. last night I spent the evening setting up a pair of Acoustat 1+1's in my living room, running full range bringing a sub in to match. I spent a lot of the time dialing in the sub and room mode notch, got it sorted out pretty good, with a known decent amp. This morning I stuck the SDS-4 in and jaysus I never heard 1+1's sound like this. That famous Acoustat coloration and the "too big to be a tweeter" sibilants - gone. I don't want to go all hyperbolic, but dang it's pretty close to perfect.So combined with what I heard with the Final 1000i, I'm beginning to think the SDS-4 is *the* amp for stats. But of course I wonder if the other SDS boards are just as good with stats - or does the SDS-4 1 ohm stability have anything to do with it? Don't know, but curious.The 60 Hz is not as bad in this room for whatever reason, but I have some ideas about the chassis wiring routing I will try soon. And whenever I have my laptop plugged into the wall I hear "crickets chirping" in the speakers, but not when running on battery, in all three rooms I've had the class D in so far. What's up with that?
HiWas just wondering if anyone knows if Tom gets on Audio Circle at all or has a phone. Mailed him my amp so he could check out the "pop" sound and he got it on monday and he emailed and said he would try and look at it that night. no other emails and no replies to my emails during the week. just would like a headsup on what's going on, if he's gotten to it etc.....I guess I would call it "hand-holding"
Well, I've sent 3 and I don't want to bother him, on the other hand it would be nice to have an update
That's quite a testament to Tom's customer service that he's willing to look at an amplifier that was not sold directly by him and that was assembled using parts that were not part of his kit.
