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Bi amp pros out there I could use some help! First time Bi Amping...

Just picked up a BAT vk 200 for the bass and using my Pass Aleph 5 for the mids and tweets. Ive never played around with bi amping so I apologize in advance for any lame questions My speakers are Dunlavy SC3's original 5.5 nominal load. The pass is 90 wpc at 4 Ohm and the BAT is 200 wpc at 4 ohm so Im guessing around 75 wpc off the Pass Amp and 150 plus with the Bat Amp. My pre amp is a Aleph P and Im running the Single ended through a XLR adaptor (cause the Bat is Balanced inputs only) and the pass Aleph 5 off the XLR outputs of the pre and inputs of the Pass amp. The PASS Pre Amp manual says there is a 6db differential between the RCA and XLR outputs  two and both can be driven at the same time. So the RCA is 9db and the XLR is 15 db. Gain is within 2db on each amp. So whats the best way to do this? Get a custom XLR "Y" connector and drive both off the XLR output of the pre? Or is there a way better way to get the magic? This is past my "WORLD" Map and experience so Id thought Id ask for the smart people for advice. 

Thank you in advance!

-ALLGOOD
128x128haywood310
bdp24's avatar
bdp24
9,505 posts
 
Adding powered subs is a form of bi-amping, providing many real benefits with no penalties.
mazian's avatar
mazian
361 posts
 
I had my Martin Logan Vantage speakers modified for biamping mainly to bypass the in unit power amplification for the bass units which while Ok ,could IMO be improved. I use a 90wpc @ 8ohms Rogue 90 tube amp to drive the electrostatic panels and an Acurus 250wpc @ 8 ohms for the bass units. Technically I have no idea what the modifier did re crossover bypassing but the result is much deeper and tighter bass. Well worth the expense which was not great. I also have a powered sub which I hardly ever use because it can tend to be overpowering in a small/medium sized room.
gratefuleric
112 posts
 
Greetings,
Hope I can help, I worked as a soundman and discovered the magic of bi-amp and tri-amping. It brought much better, cleaner and louder to my PA system even when I had a mixed bag of amps. The multiple gain controls and adjustable crossover points and a summed subwoofer output gives many ways to match up with almost any amp, speaker or room. If you have an RTA you can tweak it to perfection and get great sound from mediocre equipment.
Before buying my Peachtree nova 300,  I used a 5ch B&K Sonata (105rms) per channel with independent gains. It sound very full range and sparkly clean with my B&W 565s and a infinity sub.
Takes a little time to tweak set up, but that's half the fun.
Go on Ebay or your local musical equipment store and get a quality DBX, EV, or a drive rack for a few bucks more.
dwmaggie
222 posts
 
You might consider a DBX 223xl.  Available fairly cheap.  Balanced input and outputs, master gain control, and individual gain control over hi/lo.  I use two of them as three way xovers.  Very flexible, all pots are stepped.  You can change the frequency on the fly, without a noise penalty.
gratefuleric
112 posts
 
DBX DRIVERACK👍
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