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female needs expert advice

bough a new pair of mirage om 5 loud speakers.Iam biamping them with 2 classe 70 power amps. these speakers have 2 250wattamps built into them for the bass.I have 2 pairs of tara labs speakers cables about 8 years old tara quatums reference.what do you think would cable for them. I want something that is fast being in boogie factor @transparent don,t we all.One more question ,Iwas horizontally biamping these untill iwas talking to the maker of these speaker who told me to vertically biamp.To do this he said to take the two + and two- speaker spads of the rt speaker and put them on the rt channel of one amp and use the rt channel of amp input to rt channel of preamp do the same with left speaker and other amp . i feel that using one channel of eash amp is a waste any other ideas is welcome I don,t want to buy new amps these to me sound good but i just hate the waste the reason for doing it this way the top two things on speaker are for the mids and highs the other 2 are just to send a signal to the built in power amps fun hey? so help me guys thanks.
tarbishaw

Showing 2 responses by jeffloistarca

jeffloistarca
1,004 posts
 
You'll get all kinds of speaker wire recommendations, I like Transparent with Classe amps myself. I have an older Classe amp, and to set it to bridged mode you flick a toggle switch inside the amp. Once you've done that only one output works on the amp (I think it's the right output). So...what you've been told is accurate, no waste, just lots of current to drive the Mirage speakers. Check your owners manual for your Classe amps and if you're not sure how to run them in bridged mode, call Robert at Classe. Enjoy, Jeff
jeffloistarca
1,004 posts
 
Sean, the Classe amp used Motorola MOSFETS (although you can't tell by looking because Classe go to great lengths to take the markings off). Each FET was tested and matched before being soldered on to the PCB. As you know all output devices have their sweet spot and Classe, like most amp manufacturers, tweak their circuit taking into account the limitations of the output drivers. Yeah, I sold semiconductors to Classe for years. Since the channels are closely matched there's no real downside to bridging; experience has shown the sound improves significantly BUT you have to be an adult with the gain control on your preamp or risk frying your crossovers. Since I have juvenile tendencies and blew up two pairs of speakers (the price you pay for wanting to re-create The Who live) I am no longer running bridged amps. Learned to play an awesome Pete Townsend air guitar though.
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