Rolls SX95 Stereo Subwoofer Crossover/Filter

My project to resurrect my B&W600 subwoofer. Amp was unusable or repairable and had to be discarded. Rebuilt the sub as a passive sub, which required external amp and sub crossover. I looked at a number of electronic crossovers and chose the Rolls. Glad I did as it set up very easily and the controls are smooth and precisely matched to its purpose. Only has one minor flaw. If the amp is turned on prior to or at the same time as the Rolls you will get a pop through the Sub. Not good and a bit irritating. I solved the problem by just keeping the Rolls on 100% of the time. Not ideal as device is not power hungry. My suggestion to Rolls is to put power on time to limit output amp until power is fully on. That would eliminate the problem and not cause any operational problems due to minor time delay. Otherwise it is a well designed and built device.

Great unit for the money. Outperformed my expectations. Smooth operat wi easy to read dials and buttons. Handled my high level inputs and life with ease with my subwoofer. Highly recommend. A+.

I think this is a great little unit. Sounds nice. I only have one sub in the room but this would be great if you're using two subs.

Does exactly what you need it to do -- subwoofer crossover, phase buttons. However: GOOD - Phase correction - Stereo and/or Mono (very important) - Distortion free - Not "brainy" -- old school The NOT SO GOOD - No power on/off button? - SUB Volume "gain" is adequate, but needs MORE GAIN -- like double (20 dB vs 10 dB) BOTTOM LINE - Worth the money, clean sounding, old school design (quality), and perfect for small scale digital chip amp audio fun. If you need a higher end crossover, you'll have to go with 19" rack mount pro-gear and pay 2-3x as much -- this one is made for quality, size, and function but needs better gain

I have several powered subwoofers from the big names and stumbled across a Yamaha Sub on eBay..... had local P/U so I jumped on it knowing it did not have a x-over control and the frequency range was 28Hz to 200Hz. Ok, but knowing this range without control would probably be "boomy". It was, as expected! Started looking for a x-over and have had previous experience with Rolls so I took a chance and I have to admit, I think it is the most musical sub I own with the x-over set at 80Hz. For the details, no change in audio signal through pass-through connection, no hum or noise. No more boomy, muddy sound. Indvidual deep frequencies are clear and tight. BTW, the reason the Yamaha does not have a built in x-over is because it was designed to be used with a AVR with LFE control so they expected you to handle the x-over with the receiver. The SX95 works exactly as advertised and gives continuous variable control. If I may suggest, hook it up from source to x-over then connect you main speakers through the pass through. Phase works properly as does the stereo/mono switch. Highly recommended and it arrived early.

9/16/2024 1742 Hours EGMT ...and Wow😃🤪, what a difference an actually "NEW" Device makes👏🏿👏🏿! Didn't initially know, nor initially suspect the first one was used (& severely abused) & returned by someone until NOTHING worked, which under suddenly close scrutiny, I saw one of the THICK-Knobs was split down the middle😒. BUT Amazon replaced it, & THIS one is NEW, slightly heavier feeling, VERY-sturdy, with white highlight-indicators on the Knobs, and most IMPORTANTLY, it WORKS (during real-Time dynamic changes)👍🏿. This ROLLS SX95 Stereo Subwoofer Crossover/Filter, 12V Auxiliary Power Outlet is a physically heavy-weighted device, that supports up to 2 Subwoofers simultaneously---providing the flexibility of "Mono", "Pass-Thru", or "Stereo" hook-up. It comes with its-own Power Supply, & the only downside I've noticed is the skimpy Operational Instructions🙄. This is a solidly-built device, if it works & lasts as well as it feels, it should last a VERY-long time😉! GBJ😎

Great bass. Using it with a Douk T6 Pro +.

Most people will never need anything like this, but if you require an inexpensive and compact, seemingly sturdy and well built plus easy to figure out active crossover, this is it. As far as I can hear, it neither adds nor does it subtract from the high pass signal. The LF is easily configurable, with plenty of options available. Instructions are less than minimal--essentially a sheet of paper with a photo of the unit showing the top and front panel. But again, if you need this you probably already know how to hook it up and use it. I'm happy to find it. For its relatively low price you can't go wrong.

Feels solidly built and has quite a bit of weight to it for such a small box. All the functions work well - stereo/mono, phase invert, crossover frequency. I measured the crossover frequency to check if it matched the dial and it’s within +/- 5 dB from what I can tell. The only issue is that below 120hz you can’t tell exactly where the dial is set because there aren’t enough divisions. Overall, I’m happy with it and it’s given my klipsch promedia 2.1 sub a new life as a low frequency enforcement for my studio monitors!

Love the weight of this crossover, really makes you feel like you received your moneys worth!