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Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
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In Reply to: RE: Why bi-amp Mags? posted by steve.sukiennik on July 22, 2017 at 07:24:53:
As a practical matter biamping to achieve best results is much cheaper than obtaining them with single amping. Furthermore, biamping can provide amp performance that is not possible when using a single amp.
Optimizing the crossover on the speaker is part of it. The money sink there is the optimal capacitor for the high pass. You would want a foil cap or a high quality metalized cap bypassed with a foil cap. That would be $500-1000 depending on what you wanted.
The line level crossover for biamping can be very cheaply made with the critical high pass filter provided by the highest quality foil cap for well under $100 and if you are a cheapskate you can use a pair of <$1 foil caps and still get better results than provided by any amp driving the whole speaker with even a high grade high pass cap in it. For the low pass you can use a passive 1st (T-1D) or 2nd (MG2B) order which would be also just a handful of dollars to implement and will outdo anything you are likely to put into the speaker for low pass. For 3rd order (3.6 T-IV or IVA) you will need an active electronic low pass filter - you can build one or use one of the commercial ones, or have Marchand build one for you at high quality and with an exact copy of the electrical performance of the OEM crossover.
The large Ayre or similar amps that are optimal for a fully tweaked out maggie cost in the multiple 5 figures. You are paying to have headroom on the amp so that it is operating optimally in the mid and high frequencies where you are wanting clarity and linearity.
For biamping you can use a highly refined class A amp on top and even tubes and a high power high feedback bass amp that you would not necessarily want to ever hear driving your tweeter. Say a pro audio amp, or an Emotiva.
Another option that saves you tons of money is biamping with a multichannel amp as I suggested in another reply to you. As the best of them when bought on the used market are great bargains compared to two channel amps with similar power. Typical used prices for a discontinued model is 20% of the original price.
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Follow Ups
- RE: Why bi-amp Mags? - Satie 14:46:52 07/22/17 (1)
- RE: Why bi-amp Mags? - BDP24 17:14:38 07/22/17 (0)
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