And i think audessey xt should take care of active crossover. I am yet to recalibarate as i have sold my center channel speaker, purchased monitor audio rs center and waiting for that to be delivered. Will update more....
Monitor audio RX6 is a superb speaker.I am sure you are getting the sound of your dream. You are absolutely correct that opening speakr will void waranty and may not be worth it for such a well designed speaker.
What follows is just a theoretical discussion for the sake of it because there seem to be some guys who want to know about bi amping and the topic has come up in discussion
1) Just by removing the jumper betweenspeaker binding posts, one does not bypass internal crossover. What one achieves this way is feeding the high pass and low pass sections of the internal crossover separately.
because unless one choose crossover frequency of around 2kHZ (i don't know whether it is possible or no on the AVR), one would have blow the tweeter if the high pass filter is not intervening.
Bi amping is done when the speaker is just 2 way : a high frequency section. and a low frequency section. Monitor audio RX6 seems to be something different.
RX6 | Silver RX | Monitor Audio
Seems that it has a 3 way crossover with XO points at 700 Hz (between bass and mid) and 2.7khz (between mid and tweeter) . Looking at the ports, it seems that the speaker is internally divided into 2 compartments, the bass driver is in one compartment with front firing port while the mid and twwe are in upper compartment with rear firing port (this is just my guess. I could not find a cross section of speaker to confirm it) Still there are only 2 pairs of binding posts at base.
What it implies is that the way OP has biamped it, the front chanel of AVR are driving the bass driver through low pass filter and the rears driving mid+tweet (or vice versa).
To use active crossover properly this speaker will need 'TRI-AMPING' and not biamping.
Source >>3 way crossover: Set the lower crossover point at 700 Hz and higher XO point at 2.7KHZ>>> 3 stereo amps.
One stereo amp will drive just the woofers, the second just the mid-bass and third stereo amp will drive just the tweeters. Then one may change crossover points using the active XO and experiement a bit to get a sound of ones liking. Changing crossover frequency is as simple as turning a knob on the active XO.
Here is how an active crossover looks like
http://www.nx-audio.com/images/pro345_productpage_folder/pro345.jpg
This is a 3 way XO.
For doing all this, the speaker box needs to be opened up , the passive crossovers physically disconnected and then connecting three drivers to appropriate stereo amplifier. It results in a lot of cables around . Whether it is worth it? At least I will not attempt it if I buy such an expensive speaker. However, active XOs, biamping and triamping is very commonly used in pro audio as it has a lot of benefits the most important being
1) Absence of bad effects of passive XO components on the amplifier.
2) better control of amplifier on speakers due to absence of phase difference (I am still in process of understanding this).
3) Less distortion.
4) much easier control on crossover points.
Hope this helps to few people who are planning bi amping.
