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CT Sounds

CT Sounds Universal Bass Knob - Digital Voltmeter, Blue LED Display, Remote Gain Control, Power Switch, Durable, Pushable ON/Off for Amp

    • Based on 813 reviews
Condition: New
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$39.99 Why this price?
Holiday Deal · 74% off was $150.99

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Dec 30
Order within 21 hours and 30 minutes
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Features

  • CT Sounds Universal Bass Knob with Digital Voltmeter
  • Rotary Pushable ON/OFF & Gain Control Knob for Amp
  • Digital Voltmeter (10V~15.9V) Blue LED Display (High Voltage/ Low Voltage/ Protect Mode)
  • Compatible with Most Head Units/Amp Combinations
  • In-dash/Under-dash mountable

Brand: CT Sounds


Color: Blue


Item Weight: 3.98 Ounces


Input Voltage: 1E+1 Volts


Plug Format: RCA connector


Color: Blue


Plug Type: RCA connector


Input Voltage: 1E+1 Volts


Model Number: CTS-UMBK-1


Brand: CT Sounds


Item Weight: 3.98 Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Better than your amps Boost knob
I was a somewhat skeptical the sound would reduce in volume or quality before I purchased but neither of those fears came true, this thing is great. The voltmeter seems accurate but the hole in the side has a pot to allow you to calibrate it, if needed. The knob is not loose, it has a "dead zone" where it doesn't turn the control its attached to. It will definitely not get turned by loud music or bumps. The power LED is ridiculously bright, and I knew that from the reviews, so I hid it inside of a 1-din pocket with a flip-up door, available from Subaru for Foresters but made to work in my WRX. I like that it says "On" when powering up and "Off" when powering down, either by ignition or by the button on the dial. I pulled it open and was surprised to see its chip controlled on a high quality PCB. The wires are tiny and the RCA's aren't the best in the world but they do what they need to do. All of the wires are on JST type connectors to attach them to the PCB so I could probably replace all of them if I wanted to. I got a 4 wire connector that had matching wire colors and put that on the end, soldered and shrink wrapped. The car side of the connector was soldered into the wiring harness and the remote wires were crimped, being assembled in the car. I used a short 1.5' RCA to go to the radio. Makes for a very slick knob that does everything its intended to very well. ... show more
Reviewed in the United States on January 21, 2021 by Jeremy S. Lepel
    • Work great and easy to wire
Review Image by Mike R. Mike R.
Wiring is very easy and can adjust voltage to get accurate reading. No static noise either
Reviewed in the United States on May 23, 2024 by Mike R. Mike R.
    • Work good
I like it great product
Reviewed in the United States on August 20, 2024 by Dwayne
    • Great functioning knob!
I purchased this knob for an Orion amp that I misplaced the remote for. The knob probably works better than the factory one. The led readout is a nice touch, and amp on/off control is nice. My only complaint with this knob is how ridiculously short the wiring is. Finding an install location that would allocate 4 wires, and 4 rca connections that close to the unit was difficult. Overall great product. ... show more
Reviewed in the United States on February 19, 2022 by Jacob Waichulaitis
    • Awesome!
Review Image by Hi-Yah Hi-Yah
I decided to give this a try since my Alpine MRP-1000 does not have an RJ45 port and I am so glad I did. This CT Sounds Bass Knob does exactly what it stated it would do. Upon it's arrival, I scratched my head trying to figure out where I would install this on my 07 Scion tC; and at first I was going to screw it to the underside of my dash, but no, I wanted it to look professional. After taking some measurements, I decided to cut the devices screw tabs off so that it would fit perfectly in the center console pocket. After modifications to the underbelly of the pocket, this little guy fit like a glove. Unfortunately, the knob protrudes beyond the closing point of the cover, so it has a 1/4" rise to it when closed. Which isn't a big deal for me. Plus, when I want to turn the device on/off, all I have to do is push the cover when it's closed. BAM! It will be open most of the time anyway. And the best thing about it's location is that while driving, since my right arm is always resting on the console, I have super easy access to adjust the output. I have noticed (as other reviews have mentioned) that there is indeed a cutoff point where it doesn't really have much of an impact. Again, that is no big deal for me as the ease of use saves me the hassle of taking my eyes off the road while driving just so I can navigate through my head units touch screen functionality. The included wiring diagram on the back of the package was perfect for an easy install. I did however order the exact colors of the wires needed (18AWG) so that I could solder at the unit and made a custom wire harness just for extra pizzazz. Used quick connect ends for the remote wires in the event I ever have to remove it and piggy backed directly off the head units power and ground. Too easy! Overall, I am very happy with this purchase and I highly recommend this CT Sounds Bass Knob! Looks awesome - sounds awesome! ... show more
Reviewed in the United States on July 23, 2023 by Hi-Yah Hi-Yah
    • Not Impressed. Great Idea Poorly Executed.
Would not buy again. Switched from a Skar Audio bass knob and will be switching back. The Skar Audio knob is metal and the know itself feels tight when turned. This one however feels plastic and cheap. The knob turns very easy, not tight like the other one. This may be a matter of personal taste though. Also the knob does not seem to be fully linear. The first half of the knobs range barely makes any audible difference while the second half of the knob makes a lot of difference. The Skar audio knob was completely linear across the knobs entire range. Biggest issue is the voltmeter, which is the whole reason I got this knob in the first place. It is off by almost 1V. My voltage will read 14.1v on my head unit, my multi-meter, and my cars ECU. But this will display anywhere from 13.1 to 13.5. Odd thing is I have it connected to the same line as the head unit. I assumed the head unit was wrong but after further testing everything reads the same except this bass knob. Complete waste of $30. Also have had issues where it gets stuck displaying "Off" or "On". or the voltmeter just wont turn on at all at times. I know I may have just received a defective unit being my first experience with CT Sounds I will stay away in the future. *Update* Voltmeter starting working normally again, still wrong but working. Worked for maybe a week and is now completely dead. This thing is garbage. Will be removing once the heat lets up... *Second Update* Voltmeter started working again and then stopped. It now will not turn off and displays random characters. Knob also came off. Easy fix, I know. But should not have to be fixing anything. Thing is garbage. Get a quality bass knob and voltmeter. Was a nice concept but they either use garbage components or employ terrible engineers. Avoid this garbage and save some money. ... show more
Reviewed in the United States on March 22, 2017 by shaun blackman

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