Steve rice
After a little fine-tuning and set your levels because once it's installed like I installed mine you can't get to none of the fine-tune adjustments but it does exactly what it's supposed to do
Javier
Best low cost 4 Band. Have had it installed for about 2 months and sounds and looks great. Has 2 different color options: Red and Green. Input switches for dual and control and great sound quality IMO
Angelo Nappi
Works great sounds great so far no issues easy install would definitely recommend it for an audio build
Nick
Works as it should! Worth every penny since it was double the price in my days. I use different brand eqs currently and this one is just as great as a $100 eq.
Steven wilson
It didn't cm wit my power peace
Reaper
The volume control can’t really tell a difference. Was pretty easy to install from what I was told and sound quality can’t tell a difference either.
K-mad
I just installed the eq and it works great sounds great and fit perfect on my motorcycle. It was easy to install and the price was right. I hope it will last
Jian M.
Very good budget non-audiophile preeamp works great with my dual amp setup the only downside is a sligh hizzing sound even tho it has been professionally installed and filtered.
Muhammet
Michael Sparrow
Do not exclude consideration of purchasing this unit based on a "mid-frequency EQ gap" described in another review of this unit.
There is no "mid-frequency gap" caused by the selection of 1kHz as the center frequency for this unit's "MID" EQ control. In fact, 1kHz (1000Hz) *IS* the actual midpoint of human hearing's 20Hz to 20kHz frequency range.
There is a fundamental, erroneous assumption in the January 3, 2012 review that discusses this. The range of frequencies that most humans can hear is NOT linear in nature, but rather LOGARITHMIC. (Hover on graphic inserted below to enlarge illustration of logarithmic scale.) Thus the manufacturer's selection of 1kHz (1000Hz) as the midpoint is almost EXACTLY that -- the mid-point of frequencies that can typically be heard by humans.
(For more details, just google "audio frequency scale" to get started on increasing understanding of how human hearing works.)
A comment on that same review talks about a "two octave gap" in the EQ. That cannot possibly be verified without either: (a) the possession and analysis of the specifications of EQ circuit's design (particularly "the Q" of the unit's frequency control bands), or (b) measurement with the necessary sophisticated electronic equipment (at minimum a noise generator and a spectrum analyzer).
NOTE: It is acknowledged that if the EQ circuits are poorly designed/engineered that such a gap COULD exist. There just doesn't seem to be enough info in evidence to verify it DOES exist.
As far as 20kHz being "too high", that is subjective. Tone controls on many high-end integrated amps designed by highly-respected audio hardware companies have the center frequency of their treble controls set at 20kHz. (I just looked at the specs of Yamaha's top two integrated amps and their bass control center frequencies are set at 50Hz and their treble control center freqencies set at 20kHz.)
IMPORTANT DISCLAIMER FOR ANYONE WHO DOESN'T LIKE SOMETHING IN THIS REVIEW AND WANTS TO DEBATE (which I will NOT engage in):
Perception of "audio quality" is subjective and therefore very diverse. If ANYONE employs ANY set of tools that produces a result that THEY find pleasing, than all this theory doesn't matter! (However, the underlying physics and electronics facts still remain unchanged.)
Postscript regarding similar misconception regarding power & loudness:
A common misconception is that 1000Hz is "twice as high" as 500Hz (linear). Actually 1000Hz is "twice as high" as 100Hz (logarithmic). This is very similar to the common (but wrong) assumption that doubling power (measured in watts) will double volume (measured in decibels). For example, folks think 200 watts will produce sound "two times louder" than 100 watts. The reality is that to produce sound "twice as loud" as 100 watts, you need 10x as much power -- thus 1000 watts. Why? Because just like how humans perceive relative frequencies logarithmically, so do humans perceive relative loudness logarithmically. (more googling anyone?)
SSWYO
Is pretty useful device being able to fine tune your system
dipset1413
Great eq/crossover i used to have the clarion half din in the other car this do the same thing works out great for me.
Good bass control for my three cvr's.
