Professional 7 Band Car Equalizer Multifunctional Car Audio EQ Tuning Crossover Amplifier Parametric Equalizer Car Audio Equalizer

Perfect for competition system

This is about "Professional 7 Band Car Equalizer Multifunctional Car Audio EQ Tuning Crossover Amplifier Parametric Equalizer Car Audio Equalizer" by Mulcort, priced at $29 for this review. This is an excellent equalizer+crossover for the price (details below). It blows my $60 Skar out of the water, and gives my $150 ds18 equalizer a run for its money. I am between connecting it to my home theater or my office system; if it had passthrough when powered-off, I would rush to install it in the car. Starting from the positive: --Functionality is excellent, with Crossover, Fader, and Equalizer all properly implemented and working very well together. The equalizer band adjustments do not mess the subwoofer settings/sound (i.e. do not send highs and mids to the subwoofer), the fader is properly set to 0/0dB at center and only substracts when sending the sound front/back, there are independent volume controls for speakers and subwoofer, etc (my Skar does not do any of these, and the Skar EQ insists in altering the subwoofer sound when changing the equalizer gains, sending highs and mids to the sub!). --The sound adjustment is very nice, the band frequencies span from low base (the ones you feel in the gut rather than hearing) to super-tweeter highs that I can hardly hear (I am getting old); the 7 bands also have adequate overlap to adjust music sound to any arbitrary flavor (I tested for a couple of hours on my desk setup, using class-D amps and desktop speakers plus a sub w/o enclosure, where I can get better sound quality and staging). I could pretty much set the music tonality to whatever I wished and it shined across music genres (I listened mostly to Rock, Heavy Metal, and various Greek genres for the tests). The separate volume controls for speakers/subwoofer and the F/R fader also work well. --The AUX/CD two inputs are very convenient, for my tests I used a CD player (CD) and a streamer (alexa in AUX), but for the car I am planning the car audio system (android/carplay) plus an independent bluetooth streamer --The design is nice, it's personal taste, I like it (maybe the blue backlight is a bit bright in the night, but then it will be down there by the gear stick), the pot buttons are a bit small but well separated and easy to use (I guess they are as big as they can get for a total width of 7.25"/19cm) --Installation is trivially easy: all RCA connectors for sound in/out, and a well-designed removable plug with screw connectors for the power (well designed). The power requirement is minimal (less than a cell phone charger). The only negative aspect I found was that --there is no passthrough sound when the device is powered off. Maybe I am old-fashioned, but I really like those old Blaupunkts that I could turn on only when needed. This equalizer, as most other recent ones, is a commitment: once installed, it needs to be turned on to hear anything from the speakers; which is as expected since the sound signal has to travel though several circuits (crossover, fader, equalizer frequency bands, and whatever preamp board they have for the two volume controls), but it drives me nuts: I really don't need a sub and full equalizer adjustment for my morning commute news/podcasts. All in all, excellent sound adjustment, very good design overall, easy installation, good build quality, and exceptional value for the money. I usually like to spend a bit more for such devices, especially if I have to spend half a day to install them in the car and buy cables and brackets, but in this case I would have to spend substantially more (5x to 10x more) to get something noticeably better. If you like the looks and the blue backlights, go for it, recommended!

Trash works but trash!

I actually have a few of these seven band EQ devices. I have one of the originals from decades ago as well. I'm not very impressed with this particular implementation. The potentiometer knobs have plastic covers forced over them and they do not all line up. Some of them point dramatically down making it look very uneven and unaligned and very cheap. Other ones that I have I've noticed slight differences in what frequencies are adjusted. This one you can adjust 12 kilohertz while others can adjust 16. This one just 63 Hertz while others adjust a deeper 50 hertz which I think is more useful. All of the RCA is on the back are also crooked and come out of the board diagonal. The advertising on this device is also misleading. It claims to have a 7 band parametric equalizer but it is in fact a graphic equalizer with a fixed frequency and a fixed Q and none of it is parametric with an adjustable frequency or an adjustable Q.