GaryProtein
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The XVR1 Discrete Electronic Active Crossover – The road less traveled
Of the various upgrades I have made in my system. The PassLabs XVR1 Discrete Electronic Crossover is the one making the greatest improvement.
https://passlabs.com/products/preamplifiers/speciality/xvr-1
As incredible as the Infinity IRS Series V speaker system is as a true bi-amplified three-way system, the use of the PassLabs XVR1 active crossover to make it a completely active three-way, tri-amplified system has made an excellent improvement in midrange and high frequency clarity and resolution.
The PassLabs XVR1 active crossover is the Rolls Royce of crossovers. Completely analog in design and originally conceived as a speaker designer’s crossover for those who dream beyond the limits, there are nearly endless configuration possibilities: a choice of using one to four poles per filter, with each pole independently adjustable between 22 Hz and 18 kHz with variable “Q” and crossover slopes of 6, 12, 18 or 24 dB/octave and each crossover frequency can be used with selectable shelving if desired.
Each filter has independent, continuously variable gain control. Each chassis is selectable as either stereo band pass or stereo two-way operation. The control module chassis may be paralleled or cascaded as required. There are balanced AND single ended inputs AND outputs and any combination of balanced and single ended inputs and outputs can be used.
This crossover may be used in just about any configuration you can imagine. This can be used as two-way or three-way, four-way, five-way or more-way depending on the number of power supplies and control modules you get. One power supply will drive two frequency control modules. I am using a three-way configuration, which means there is one power supply and two frequency control modules. The module controlling the midrange is set to band pass mode and the woofers and tweeters are set for low pass and high pass operation respectively. My speaker system, being a three-way system is using a total of six channels of power amplifiers, three for the left channel and three for the right channel. The woofers, midranges and tweeters all have their own dedicated power amplifiers. With the elimination of the passive crossovers in the speakers, the amplifiers are able to control the drivers directly without the capacitors, coils and circuitry of the passive crossover intervening.
Of the various upgrades I have made in my system. The PassLabs XVR1 Discrete Electronic Crossover is the one making the greatest improvement.
https://passlabs.com/products/preamplifiers/speciality/xvr-1
As incredible as the Infinity IRS Series V speaker system is as a true bi-amplified three-way system, the use of the PassLabs XVR1 active crossover to make it a completely active three-way, tri-amplified system has made an excellent improvement in midrange and high frequency clarity and resolution.
The PassLabs XVR1 active crossover is the Rolls Royce of crossovers. Completely analog in design and originally conceived as a speaker designer’s crossover for those who dream beyond the limits, there are nearly endless configuration possibilities: a choice of using one to four poles per filter, with each pole independently adjustable between 22 Hz and 18 kHz with variable “Q” and crossover slopes of 6, 12, 18 or 24 dB/octave and each crossover frequency can be used with selectable shelving if desired.
Each filter has independent, continuously variable gain control. Each chassis is selectable as either stereo band pass or stereo two-way operation. The control module chassis may be paralleled or cascaded as required. There are balanced AND single ended inputs AND outputs and any combination of balanced and single ended inputs and outputs can be used.
This crossover may be used in just about any configuration you can imagine. This can be used as two-way or three-way, four-way, five-way or more-way depending on the number of power supplies and control modules you get. One power supply will drive two frequency control modules. I am using a three-way configuration, which means there is one power supply and two frequency control modules. The module controlling the midrange is set to band pass mode and the woofers and tweeters are set for low pass and high pass operation respectively. My speaker system, being a three-way system is using a total of six channels of power amplifiers, three for the left channel and three for the right channel. The woofers, midranges and tweeters all have their own dedicated power amplifiers. With the elimination of the passive crossovers in the speakers, the amplifiers are able to control the drivers directly without the capacitors, coils and circuitry of the passive crossover intervening.
