

🎵 Take control of your bass, wherever the road takes you!
The XMSJSIY Universal RCA Level Controller is a compact, high-quality metal-encased device designed to give you precise control over amplifier gain and bass levels. Compatible with a wide range of car stereos, motorcycles, and home audio systems, it features easy dash-mount installation and plug-and-play RCA connections—no extra wiring required. Perfect for audiophiles seeking customizable sound balance and superior signal clarity on the go.
| ASIN | B09C5Z9BFL |
| Best Sellers Rank | #42,286 in Electronics ( See Top 100 in Electronics ) #553 in RCA Cables |
| Brand Name | XMSJSIY |
| Customer Reviews | 4.4 4.4 out of 5 stars (293) |
| Item Dimensions | 8.66 x 1.97 x 0.79 inches |
| Manufacturer | yingtuyou jiaju |
| Material Type | High Quality Materials |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
P**R
Better than expected
Perfect. Using to tame down output from Nakamichi tape deck. Works great. Good quality.
N**R
Perfect control for sub
My car stereo doesn't have sub control so I used this in between the amp and it works perfect! Great adjustability, easy to install, great bass and volume control. Excellent value for the money!
N**N
Works 100%
Very simple potentiometer with RCA jacks. Works 100%, but not the greatest build quality. Great if you're on a budget.
D**Y
Sound quality perfect.
Controls volume perfectly. I did buy a different knob.
M**A
Great
Arrived on time. Have not hooked up yet but it looks like good quality stuff : Update! Works great just buy it for the price you can’t beat it
T**Y
We will see.
Not sure. I haven't hooked it up just yet. But it seems kind of cheap. Not real sturdy.
J**T
Very useful for balancing the inputs to a stereo system
I bought a couple of these, because the signal levels out of my CD and CR-R drives are quite a bit stronger than the other inputs on my stereo system: up until I cut these into those lines, I would have to turn the volume down quite a bit, when switching to CD from FM, phono, or tape. These solved the problem quickly and cheaply, with no need for an external power source. Note that the input and output pigtails are clearly marked, and (assuming this is wired as a voltage divider) not interchangeable.
P**D
Controlling car audio subwoofer
Works well to control subwoofer volume in my car audio system. Using a Joying Android head unit that has subwoofer controls a little bit buried in menus. Using this knob is a quick way to adjust output to the sub amp. No static or distortion heard. Mounts nice. Knob has a high quality feel.
K**N
Uses on my car it works as described no problems with it so far very happy with it
P**K
Works perfect and easy to install
T**C
this little device does exactly what it says. I have a CD player that runs a little loud, so this works great for adjusting the line output for my vintage stereo equipment
Z**E
So far ok, seems to fix issue. My problem was that cd player has 2 volt rca output and my vintage amplifier only 150mV input that 12 times too high and I heard some distortion in speakers. I'm not sure if sound quality went down I'm not huge audio master but no more distortion. ONLY one issue, no one mark cables in/out and is big difference if you connect rca opposite, in my case left channel was lower than right.
J**N
Simple device. Does what it's intended to do. Sub amp volume control! If you don't have sub level control on your head unit and you add a sub, you need this otherwise the everchanging variables in music (production sound, quality, download quality, source, music genre etc etc, will have you pulling over to manually adjust the bass amp every track on your favourite mix. No thanks. No issues. Day 1. For the price I am happy with it.
Trustpilot
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