12/8/2023 0 Comments Soundstream reference 604![]() That's just too much heat for that little chassis methinks. The DPS350 was nothing like "real" 700w amps. ![]() I know plenty of people with modded LPs and they do put out sick power, but maybe that's more a tribute to how well they were originally built rather than their ability to truly handle that much power. I can't imagine that thing putting out 700w RMS modded. I've seen the inside of the DPS350 (almost the same as the LP150z) and it's just not that robust. The only LPs I had modded were for SQ purposes and they made no more power than stock. I think you might have the same problem with modded LPs. Even if we assume that it only has a 900w output stage, it's still pretty powerful although you might want to sell it if someone really wants it. The Reference 500 apparently had a much stronger output stage than the more powerful 700SX. ![]() Have fun with that thing- perhaps yours will be one of the few that has never caught on fire.Ĭlick to expand.Sadly, I think that's the point-you don't have a Reference 500. Of the hundreds of SS amps I have owned (I still have one or two ) I have never had a Reference S or SX series based on what I know (the 300s(x) are solid amps, however). When the amps melted down, Soundstream didn't respond appropriately, but that's another part of the soap opera that doesn't need retelling here. Prior to this the Soundstream amps had "overbuilt" output devices but in the name of cost cutting and marketing hype they went down the wrong path. The problem was that the output devices were not upgraded and protection circuits weren't in place. The Ref 500 became the 700s as a result of this. I won't get into the whole soap opera here, but the management wanted more power without extra cost and forced the engineers to redesign the Reference lineup to output more power from the existing board designs. The heatsink is very nice but the board has some traces. I picked up a project amp on ebay a few months ago that I wanted to upgrade. Or an amp that may be fairly scratched up with a good board inside. Despite everyone's hypothesis of the problems with Soundstream's later Reference models (bad high current switches, defective power supplies, etc.), you have located a hint of the actual source of trouble. I am basically looking for a clean unmolested board for an original Soundstream Reference 604.
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