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Yeah, keep us posted on what you try and the outcome. I wish I could find something on that output to see if that's even a concern.
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I think we are trying to answer the wrong question.
I think he is looking for club sound.
Jim
This can be done, how do you lke your neighbors?
Look at more power and a range expander.
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I may have misunderstood something. Is the inverted output jack on your preamp? If so that's to drive only Soundcraftsman power amps switched to bridged mode. If you are using an inverted and a regular output reverse the speaker wires on only one speaker.
I wouldn't use the inverted output for anything but Soundcraftsman power amps. Use only the regular left and right outputs.
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The 555 is 200x2 into 8 ohms and the speakers are 101 & 98dB efficient, no need for more power. Not tomention a 2nd amp of 125x2.
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And a pair of 555's bridged is 600 wpc into 8 ohms. I run a pair of 250 wpc into 8 ohm amplifiers into a pair of Legacy Classics one for the highs and mids and the other for the low end, I also run a pair of 600 watt mono blocks for use in bars, For sound quality the Adcom and Hafler are the winners, For the beat you in the chest thump they won't keep up with 600 wpc into 8 ohm Soundcraftsmen,
Earlier it was mentioned about incomming ac power, running a pair of power amps that have the potential to draw what the Adcoms can at the volumes the op is saying, he is having a voltage drop, I don't know if it is enough to damage the amps. I had to run seperate circuits for each of my amps, when I had them on one circuit you could see a significant voltage drop on the power conditioners meter.
Just like the car that pulled up next to you with the rusty fenders flopping in the wind and vibrating to heck, it takes a lot of power to move enough air to make your seat vibrate and make you wish the light would hurry up and change.
And yes what JoeE SP9 is saying is correct the auto-bridge is meant for the Soundcraftsmen amplifiers to be bridged, don't use it with other amplifiers. If you are using the auto-bridge you are probably out of phase.
Jim
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OK by jove we've got it!!!! Jeez, I really don't understand what the initial problem was. I started from the ground up disconnected everything, restacked the componenets, reconnected them with the most heavy duty jacks I could, mostly the gold ones, and used the Peabodys Y-jack idea with the dual Adcoms hooking the 555 to the RE-30s and the 545 to the DX-9s. Actually that seems to sound the best to me out of all the variables. But somewhere along the way the bass began to knock me on my butt. 1/4 volume is plenty and I don't think I could even go over 1/2 without serious Who concert damage to my auditory canals. Wow, the only thing I can figure out is I had a bad connect somewhere along the way, and the inverted input was defiitely a no-no. I can tell you there is no need for an additional subwoofer. Cudos to all of your analyzation help. Happy days are here again. I am so pumped - can you tell? Thanks a million everybody!!!
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Soundcraftsmen DX-4000
Soundcraftsmen SG-2205-600
Adcom GFA-545
Adcom GFA-555
Denon CDR-W1500
Tascam 202 MK-III
Dynalab FT101
Yamaha YP D-6
Cerwin Vega RE-30s
Cerwin Vega DX-9s
Just had to do that, to have some fun with you guys!! Adios mi amigos!
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I told you that system should be romping :) Glad to hear the issue is resolved and you can get back to some rocking & rolling.
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yeah the Adcom to Cerwin Vega thing is something that we used to sell a lot of back when I sold audio for the shear volume and dynamics that they would deliver while the amp sit there and laughed about it and did not strain at all. I had a lot of happy loud listeners back then with these setups, even though overall they were not my cup of tea they did hammer the bass and could rock the block!!!!
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Same with us and the Infinity Studio Monitors, they were about as efficient as CV, not my thing but we sold them like crazy because they got loud with little effort. At the time our big amps were the Kenwood Basic series. We later had some Proton and Carver but I personally would take an Adcom over either of those. The Infinity RS sounded so much better but people then just gravitated to the larger woofers and more raw sound.
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I love it when a plan comes together!
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Glad to hear it is working for you.
Jim
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Teamwork!!
Great To hear everything worked out.
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OK fellas, just an update from concert central. As you know already I had revamped so the CV's are stacked and about a foot from the wall, and got a hair to buy a couple of subs mainly because I again got a great deal on them. I placed them on the outsides of the 2 stacks of speakers. One is a front firing 12" Bic Acoustech H-100 500 watt, the other is a floor firing 15" AR 400 watt. The reason I got 2 different types was becuse I wanted a mix of dynamics, so to speak, as far as the sound goes. And I have to tell you it is fabulous. The depth and imagery is fantastic. Its like the band is right in front of you. You can actually pick where each person is standing. And the added depth to the bass is a little more of what I was looking for. I reconnected the 2 subs and DX9's to the 555 through a Adcom GFS-3 speaker switch, and the RE30s to the 245. Every thing seems to be better balanced that way. With the RE 30s off the ground 36" they needed to be backed off a bit, thats why I connected the 245 to them. Now everything seems to be more copasetic. Make sense? It sure sounds terrific this way anyway, not to say it was bad before, just not quite as good. Tweaking is fun! Thanks again for everyones input, it has been fun and I think this venture has just begun rather then be over. Onward and upward we go.
Blasting, billowing, bursting through with the power of ten million butterfly sneezes.
Man, with his flaming fire has conquered the wayward breezes climbing to tranquility far above the cloud conceiving the heaven clear of misty shroud.
inspired by the moon landing, 1969 Moody Blues Higher and Higher
remember?
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Good to hear you reached some satisfaction. The foundation should be rocking :)
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