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quindecima
11-13-2010, 09:07 PM
Is it feasable to Bi-Amp the L300 using the Ashley XR1001 crossover network and would it be advantagous or not? :confused:

macaroonie
11-14-2010, 03:41 AM
All you need is here http://www.jblproservice.com/pdf/Studio%20Monitor%20Series/4333B.pdf

48549

Bi amping is generally accepted as being ' a good thing ' It does allow you to choose amps with different attributes for the LF and MF/HF sections. For example a nice big Crown to run the bass and a Class A sweety to run the top.
Just my 2 cents worth , have fun.

ratitifb
11-14-2010, 06:43 AM
Bi amping is generally accepted as being ' a good thing ' It does allow you to choose amps with different attributes for the LF and MF/HF sections. and don't forget the primary improvement of bi amp that is according to my knowledge the removal of the series resistance of the coil in the low pass section :bouncy:

quindecima
11-14-2010, 10:03 AM
Thanks for the info and it would be nice to run the JBL 3133A network but I don't have two and there aren't a great deal of them for sale out there. That leaves the Ashly, is it a reasonable alternative? :confused:

Uncle Paul
11-14-2010, 11:49 AM
Even with the 3133A networks you still need the active crossover. I'd consider building 4313B's (the forum member, not the speaker) updated L300 network in a Biamp only version. All you need the full HF section and the low pass portion of the MF section. Protect the LE-85 with a 20 uF cap for DC and other nasties, or simply use the full MF section.

You will have to do a search to find the network, but it was included in a recent post.

EDIT: Here it is: http://audioheritage.org/vbulletin/showthread.php?166-4333-S300-L300-equivalent-bandbass-circuit&p=1042#post1042
and a thread about it: http://www.audioheritage.org/vbulletin/showthread.php?29127-DIY-L300-new-crossover&highlight=l300