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XQP 545 Disrupter
Compressor for 500 Series, FREE WORLDWIDE SHIPPING
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Fake Price................................... $420.00
Real Price............... $365.00
QuantityAmount
2 to 2$340.00
Status: Usually Ships Same or Next Business Day

XQP 545 Optical Disrupter Compressor Description

Stereo Pair Deal: $50 OFF!


A VPR 500 series product, the XQP 545 uses a pair of VACTROL® optoisolators to create compression which results in an asymmetrical waveform in the low freqencies.

There is no clipping of the waveform, yet a thick, smooth, even-order harmonic distortion results from this process.

Effects ranging from subtle tape saturation to deliberate distortion can be easily achieved on material with low frequency content.

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The XQP 531 has a 10 year manufacturer's warranty against defects
, and is a member of the API VPR Alliance.

XQP 545 Optical Disrupter Compressor Review /  See All ZenPro Audio Reviews Here: Review Page


The XQP Disrupter...man sounds like something kooky...well it is. You don't buy a Disrupter to just limit the dynamic range of stuff, you buy one to do it with an edge of 2nd order harmonics (ie distortion) as the effect. It really is a distortion box but one that mainly listens to bass content to enact its evil-doing to your signals! It's an opto compressor, sure, but it delivers fuzz. If you look at the layout there aren't too many decisions you have to make (rendering it more fun...) other than selecting the sensitivity of the threshold (x4 switch), how much disruption to perform (compressing and distorting low frequency content) and how much make up gain you need afterward (the makeup gain actually sounds very clean to me). With an attack time of 10ms and release time of 18ms, the unit tends to do better with average type of compression rather than catching very fast peaks.

On things like drum buss the Disrupter can downright mangle things, turning deep tom and kick hits into farty almost synth sounding bass buzz when pushed hard. You don't HAVE to hit it hard, but in this regard I would consider experimenting with one using it in on an aux send / return to be able to bring it into the mix during certain parts of a song that needs some excitement. On bass guitar you simply end up with less or more distorted compressed bass no matter what you do, since the Disrupter is basically made to listen to and react to low frequency content more than the upper freq spectrum. Electric guitars that need a little extra drive and distortion while smoothing out the dynamic range also benefit. Maybe the amp wasn't quite bringing the edge needed for mix time? Hit it with the Disrupter and edge will be the LEAST of your problems. I like how the "averaging" type of compression (which with a medium attack and medium fast release time render this box better at vs peak reduction) works with electric guitar stuff also. Vocals are a bit hit and miss only because of how heavy it works on the bass region, and depending on whether a singer reaches higher for part of a phrase (and the Disrupter won't "see" much to reduce or distort) or moves around (proximity effect changing on the mic while tracking) it can release from its duties somewhat unexpectedly so hard to predict this box would be much use for vocals except for very specific duties (like dialing it in on a certain phrase for effect).

Conclusion: A compressor but a raucous effects box at the same time, the fact that it relies on (for the sidechain) and affects (distorts) lower frequency content more means it can do a great job on things like drum buss, bass guitars, synths and electric guitar buss. It can do subtle, but most times I don't think that's what you'd want. From slightly hairy to downright square wave BUZZ, the Disrupter lives up to its well chosen name. In this price range, if you have a 500 rack...it's an easy choice if you need controlled distortion.

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