When I turn-off the amplifier there is also a POP on the speakers and one can see the speakers stay in a inflated or deflated position for a short while. Soundstream Reference 405s 400 Watt Amplifier Reverb Similar Listings B&K Components Reference 125. When I tried to turn up the gain of the mono output I heard some crackling, then one of the speakers connected to one of the 4 primary channels inflated or deflated (probably DC voltage on speaker outputs ?), not sure whether it inflated or deflated as I hastily turned back down the gain before the speaker overheated.
The mono-output was even weaker than the rest of the channels and it was noisy. Then I fired it up with speakers connected and I noticed the analogue amperage indicator of out power supply went over 3 ampere for a fraction of a second, during which their was a loud POP out of the speakers before it idled nicely.Īll 5 channels produce sound, though very low, much lower than I have ever heard even out of the less powerful models such as 200s and 405s. We put the amp back together to see what happens and when I hooked it up (without any speakers) it idled nicely at about 1.5 ampere.
Soundstream 405s driver#
The solderings were pretty good, but I must say I often find them to be better on these s /sx amps than on the original Reference amps (mainly driver board solderings), though the s / sx have other issues. We did an ohms test with the DMM on the rectifier diodes which are problematic on Reference amps but they did not appear to be shorted on this amp. Soundstream reference 405s Directed 202 crossover Audiopipe 4 band eq with 13 volt output rms Optima yellow top 0 gauge wiring 4 gauge wiring for the big 3 Any suggestions would be greatly appreciated.
Soundstream 405s plus#
We removed the board, refreshed some solderings and sprayed some contact cleaner on the switches and worked them back and forth many times. Soundstream Reference 405 mint condition in original box for sale Soundstream Reference 405 3/5 channel 25 watts x 4 plus 100 watts x 1 (4 ohms, 12 V) 40. The seller told me only two of the five channels were functional. Find many great new & used options and get the best deals for Soundstream Reference 405S-.05 ohm stable. Soundstream, a company in Utah, which was ready to step in with its. I purchased a malfunctioning 705s for a friend of mine. Hi fi sound from cardboard COMPACT DISC, the digital audio disc system.
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