ROLLS A-B Box (SX95)

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😎

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!

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.

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

Well built and performs as advertised. Provides great control over my passive subwoofer which is powered by a separate power amp. Highly recommend.