Remote subwoofer level control

Item #: 500RUXKNOB

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45 Reviews

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The RUX-KNOB remote level controller works with Alpine's mono subwoofer amplifiers so you can manage your bass level from the front of your vehicle. The RUX-KNOB adjusts your amp's level from its set maximum volume all the way down to virtually "off." Since it adjusts level and not "bass boost," you'll maintain the same bass tone as you turn the volume up and down. You can control multiple amplifiers with a single remote by adding a standard phone cable splitter (not included).

Product Highlights:

  • remote level controller for Alpine PDX, MRV, and MRX Series subwoofer amplifiers
  • adjusts gain from 0 to -12 dB
  • for use with Alpine mono subwoofer amplifiers
  • multi-amp capable (standard phone cable splitter required — not included)
  • 16' connection cable
  • warranty: 1 year
  • Our 60-day money-back guarantee

See All Car Amplifiers that work with this item

Alpine RUX-KNOB Reviews

Average Customer Review:

45 reviews
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Great Product

Written By Mitch, New Jersey on Saturday, October 24, 2015

Crutchfield Customer Review (What's this?)

Perfect for adjusting bass level on different songs.

Pros: Easy install

Cons: Shaft too short if trying to mount in dash or console.


Written By Jose O, Portage IN on Wednesday, September 30, 2015

Crutchfield Customer Review (What's this?)

A must have! Installation is a breeze. You can adjust the bass on the fly!

Pros: Adjust bass from 0-15 with ease.

Cons: None

A Must Need - RUX-KNOB

Written By Kevin, Pennsylvania on Monday, July 20, 2015

Crutchfield Customer Review (What's this?)

This knob is perfect. I use it with my PDR-V75 which the 5th channel is hoooked up to the 8" Kicker 40CWD82. This setup is in my 2013 Dodge Dart and I have it right below the center console. The length on this is perfect to reach the amp in the trunk and then some. Also with having to take off a cover for that amp everytime you want to adjust gains and crossovers it makes is much easier having the knob.

Pros: - A must need for an amplifier that is difficult to get to the controls. Instantly if the bass is hitting to hard or not hard enough you can adjust right on the fly.

Cons: - Only con is that there should be some sort of reference white dot on the knob so you know where it is set. This can easily be fixed with some white paint, I even put on white glow in the dark paint over top of a white dot so it could show at night.

A much needed accessory

Written By GenoC, McDonough,Ga on Friday, July 03, 2015

Crutchfield Customer Review (What's this?)

This little baby is a real help when you're trying to tune that sub output from the pilot or co-pilot position.

Pros: Easy to install and use.

Cons: Should come with the amps.


Written By Carlos, Pico Rivera, CA on Friday, May 22, 2015

Crutchfield Customer Review (What's this?)

Really cool control the volume of your bass amp nothing else.

Pros: Zero volume up to full volume.

The bass

Written By Anonymous, Opelika al on Tuesday, April 14, 2015

Crutchfield Customer Review (What's this?)

This is a must if you have big bass

Awesome Control

Written By Jeff D, Illinois on Wednesday, March 18, 2015

I Love this and others just like it for control over the bass volume from drivers seat. Others wish the knob had an indicator. Simple put the knob to (0) And with a small paint brush--make a dot with white paint ; Hope that helps

Pros: Awesome Control of bass output from the seat of my 2007 Acura TL Type-S

Cons: None

Love it!

Written By Kyle, Apo AE on Monday, December 08, 2014

Crutchfield Customer Review (What's this?)

This bass knob works well can mount just about everywhere and the biggest thumbs up is that if ur like me and running two subwoofer amps from alpine u can control them both with just this one knob very convenient!


Written By Justin, San Antonio, Tx on Monday, November 17, 2014

Crutchfield Customer Review (What's this?)

Great Product. Easy to Install.

Bass knob

Written By Brant, Seattle, Wa. on Sunday, October 26, 2014

Crutchfield Customer Review (What's this?)

Great product. Exactly as expected.


Written By someone, somewhere, usa on Friday, October 10, 2014

Crutchfield Customer Review (What's this?)

Used this with a alpine mrx m55. Works very well. Came with more than enough cable and looks great. Great product and fast shipping. Thanks crutchfield

Pros: Worked as described

Cons: None


Written By John E, WV on Saturday, October 04, 2014

Crutchfield Customer Review (What's this?)

Great! Just like a volume knob for the bass. If you don't have one of these, the bass can actually ruin a song. This lets you remedy that.

great product

Written By Subie_JZ, Mission Viejo, CA on Saturday, October 04, 2014

Crutchfield Customer Review (What's this?)

I got this Alpine RUX-KNOB to make it easier to adjust the bass on my amplier. This product works great and is easy to install. Come with plenty of wire to hide it below cars interior. Definitely recommend.

Pros: Mount it anywhere. Easy turn dial. Small and doesn't take space at all.

Cons: None

alpine rux-knob

Written By Harley Dave, cleveland,ohio on Thursday, September 18, 2014

Crutchfield Customer Review (What's this?)

works awesome, looks great , and its small

Pros: small size, works awesome

Cons: doesn't have indicator to let you quickly see where its set

Icing on the cake

Written By Lw, Normal, Il on Wednesday, September 03, 2014

Crutchfield Customer Review (What's this?)

Just had a major car audio upgrade. Went from factory to an Alpine system. I found myself struggling trying to get the system dialed in. Using an iPod as a primary source can have an affect on sound quality. Some tunes may need a bit more bass, and some may need less. The Rux knob solved the issue. Utilizing the Rux knob with a MRV-M500, I installed it by the center arm rest. So now making any needed adjustments are right at my fingertips. What a huge difference. I love my new Alpine system, the only downside is that I'm putting more miles on my car and going through more gas as a result of cruising around and jamming. Worth it.

Pros: Easy installation

Cons: Wish it was included with the Amp

Alpine gain knob

Written By Anonymous, NOVA, VA on Sunday, August 24, 2014

Crutchfield Customer Review (What's this?)

Works like it should. Adjusts your gain level on an alpine amp to the maximum gain you have set. Could have some sort of indication of where you're at in terms of knob position, tactile click would be nice.

Pros: Adjust amp gain Plugs right in

Cons: No telling what level the knob is at

Controls my bass

Written By alldaelong, DC Metro on Tuesday, July 01, 2014

Crutchfield Customer Review (What's this?)

Controls the bass on my alpine amplifier. Crutchfield has the best price I could find.

Pros: Do exactly what it says.

Cons: None

bad ass base knob

Written By Mark, Graham,WA. on Sunday, June 29, 2014

Crutchfield Customer Review (What's this?)

Super easy install and now an occasional Lady Gaga song doesn't have overpowering bass compared to my 70 rock music, just a quick turn tones the sub up or down for the perfect subwoofer bass.

Pros: Easy to connect. Inexpensive, works great

Cons: None.

works great

Written By Anonymous, ohio on Monday, June 16, 2014

Crutchfield Customer Review (What's this?)

Works exactly as it should. Very convenient.

Big Red

Written By Big Red, Oklahoma City, OK on Saturday, April 19, 2014

Crutchfield Customer Review (What's this?)

Works great! I'm able to control the amount of bass to my subwoofer from the driver's seat. That's important because different sources of music require different amounts of bass.

Pros: Simple and easy to use. Inexpensive.

The right knob for the job

Written By chrisD, Visalia,ca on Thursday, April 17, 2014

Crutchfield Customer Review (What's this?)

Using this with Alpine MRV-500. It works just fine controlling my 12' sub. Good price. No complaints.

Must have!!

Written By Chris, Fl on Thursday, January 23, 2014

Crutchfield Customer Review (What's this?)

It's a must have to control your amp.

Pros: Convenience.

Cons: None.


Written By Anonymous, fort smith ar on Saturday, December 21, 2013

Crutchfield Customer Review (What's this?)

Good product very good quality but wouldnt expect anything else from alpine.

Small flaw, awesome product.

Written By Anonymous, Fostoria, Ohio on Sunday, December 01, 2013

Crutchfield Customer Review (What's this?)

It works great, there is just a small problem where only like the first quarter of a turn actually changes the bass and there is no real way to tell where your at on it. Other than that it works for what it's intended for and a great investment.

Pros: I can turn the bass down so I don't get pulled over or if I just want less bass(typically not the problem I'm a basshead).

Cons: Only a quarter turn really does anything.


Written By Anonymous, frederick,md on Saturday, October 26, 2013

Crutchfield Customer Review (What's this?)

works very well

Pros: it controls the bass well

Cons: its difficult to find the bass you want on the knob not sensitive enough

Quick bass on the fly

Written By Mark H, Cincinnati, Ohio on Wednesday, October 02, 2013

Crutchfield Customer Review (What's this?)

Helps with that extra needed bass for those songs that lack that you know can be there. or to control the 3rd sub. easy install.

A Must For Any Compatible Amp.

Written By B, South Florida on Saturday, August 31, 2013

Crutchfield Customer Review (What's this?)

Combined this with the MRV M500 Alpine amp. It's a must. Simple to wire. Literally Plug it In and place the knob somewhere accessible by the drivers side or head unit area. Great to adjust the bass levels. I can turn it down with the kids in the truck and crank it up on my own. I like a variety of music so you can easily adjust the bass accordingly on the go.

Pros: Easy Install, Gives flexibility to any compatible system.

simple and effective

Written By Travus, Arizona on Thursday, July 18, 2013

Crutchfield Customer Review (What's this?)

This does a great job of controlling my sub level remotely. Works like it should.

Pros: Works like it should, makes it easy to fine tune bass on the fly

Cons: Wish it had more resistance when turning knob

Magic Knob

Written By DCS, Macon, GA on Tuesday, July 16, 2013

Crutchfield Customer Review (What's this?)

The knob is a great addition to the MRX-V60, If you have a radio with sub channel control, turn your volume up a little and use the Knob to dial it down. This Knob is an adjustment tool, Not a magic wand. If you are looking for more bass than you have now, don't expect to get if from a resistor. Buy more power and bigger subs. Crutchfield has a great selection. This Knob is great for bass levels that vary from song to song.

Pros: Looks good, Small

Cons: Price

Not Impressed At All

Written By RP709, Waynesboro, Pa. on Monday, July 01, 2013

Crutchfield Customer Review (What's this?)

I purchased this knob for the Alpine MRV-M500 that I already owned, and like the title says I was not impressed at all. I am not writing a long review on this one because there is not much to say, but you could pretty much stop the knob rotation at about 2/3 and it would be just as effective. It does work, on the lower end of the scale but unless you intend to crank your gain up that's about all your going to get from it. I set my amp gains and head unit with an oscilloscope to prevent clipping all around, when Crutchfield support told me turn my gains up to get more range from the knob, I decided to leave it at that. I have been a customer for almost 18 years, and this may be a tainted review, that I doubt will ever be seen, but this product does not live up the Alpine standard that my other Alpine products have set. The "advice" I was given was definitely not what I would have expected from a company that has never steered me wrong in the past. Turning up the gain on an amp that has been properly set, is NEVER the answer to any question EVER.

Pros: Long cable-Heavyweight design

Cons: Poor frequency response-Limited functionality

Crutchfield response on Wednesday, July 03, 2013 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

Rux Rox

Written By 58Driver, Greenville, SC on Friday, June 28, 2013

Crutchfield Customer Review (What's this?)

Got this free on special. Thanks Crutchfield. That being said, its worth the retail price being able to tailor the bass for each style of music. I like a lot of different styles and now I can fine tune on the fly.

Pros: Compact, effective

Cons: Kind of vague control

Alpine RUX

Written By JCW, Horsham, PA on Friday, June 07, 2013

Crutchfield Customer Review (What's this?)

Good stuff - Its nice to be able to control line-level input of the sub.

Not so good stuff: There is no sense of indexing. There is no marking on the knob or dial so there is no way to tell where on the scale the level is set. The maximum loudness adjustment is based on the gain set on the sub. Once the knob is turned to where the gain is maxed, there will be no additional gain as the knob still has farther to travel. This means there is no way to tell with the turn of the knob where max actually is.

Essentially, this is a very cheaply made accessory.

Love it

Written By Anonymous, Ledyard, CT on Thursday, May 30, 2013

Crutchfield Customer Review (What's this?)

The bass knob is amazing! Different songs produce different types of bass and its nice to be able to control that in a split second.

Works as expected

Written By Anonymous, Rockwall,tx on Tuesday, May 21, 2013

Crutchfield Customer Review (What's this?)

Works like it should. Too bad it was not included with amp

Pros: Controls sub properly

Cons: Should come with the alpine amps!


Written By john, OK on Thursday, May 09, 2013

Crutchfield Customer Review (What's this?)

It's a knob. turns the bass up or down. works.

Pros: turns the bass up and down

Cons: sometimes not enough gain. :)


Written By kevin, valpo on Wednesday, May 01, 2013

Crutchfield Customer Review (What's this?)

works great


Written By Jason S., Jena, LA on Saturday, April 27, 2013

Crutchfield Customer Review (What's this?)

This is a no-brainer to purchase. I have this hooked up to the Alpine MRV-M500 and I could not imagine my system without it. Simple to get the right amount of bass to each and every sone. Don't know why someone would not get this.

Pros: Easy, total control

Cons: none


Written By BHayes, Texas on Friday, April 26, 2013

Crutchfield Customer Review (What's this?)

This sub control works very well. Makes controlling the bass volume quick instead of having to press many buttons on my navigation unit to just control the sub volume which is an unnecessary driving distraction.

Pros: Great Unit

Cons: None


Written By D ROC, MS on Thursday, April 25, 2013

Crutchfield Customer Review (What's this?)

Great bass knob I love it .

Cons: N/A

Alpine Knob

Written By JesseM, Davenport, Fl on Monday, April 22, 2013

Crutchfield Customer Review (What's this?)

Bass knob works exactly as it needs to. Installed on an Alpine PDX-V9. Only thing I wish is that someone would start making nicer looking knobs. It seems that all the manufacturers make the same looking ones with not to much thought into the "looks" of them. I have installed plenty of them and not much change in the years. Maybe an LED to display the Alpine logo would be great.

Pros: Simple to install. Does its job.

Cons: basic looking


Written By Anonymous, irvington alabama on Wednesday, April 03, 2013

Crutchfield Customer Review (What's this?)

I love it!

Bass Head

Written By WiiPlaya, Surprise, AZ on Tuesday, February 26, 2013

Crutchfield Customer Review (What's this?)

Knob works as described. Have it connected to MRX-V70 5-channel amp. It's an excellent control to have because I have the amp connected to my factory head unit and it doesn't have subwoofer control. The installer was even able to install it in an empty slot on my dash. It looks like it came from the factory like that.

Pros: Able to control bass when amp is connected to a factory head unit

Cons: None


Written By ev, cairo, ny on Monday, April 16, 2012

Crutchfield Customer Review (What's this?)

Works just as I wanted with the amplifier. It's great to have a simple, instant control of your bass

Pros: simplicity at its best

Cons: none

Rux know

Written By SSS, Lake Jackson, Texas on Monday, February 06, 2012

Crutchfield Customer Review (What's this?)

Very nice option to adjust amount of base on the fly. Works well with my Alpine MRX-M50.

Pros: Locate where you want.

Cons: Wish it had a stock face mount to allow the knob installation to protrude thru my dash, instead of side mount. Just a thought.


Written By CLEVELAND, Baltimore on Friday, April 08, 2011

Crutchfield Customer Review (What's this?)

Great convenient product for factory radios without subwoofer controls.

Hands-on research

What's in the box?

Download owner's manual

  • Wired remote bass level control knob
  • 16' Connection cable (with a RJ-25 connector on each end)
  • 4 Mounting screws

Product Research


Overview: Simply add the Alpine RUX-KNOB wired-remote bass-level control-knob to your compatible PDX series or MRX series Alpine amplifier and get full control from the front of your vehicle for remote bass adjustments. You also have the ability to control multiple amps from just one controller with simple telephone cord adapters (sold separately).

Compatibility: The RUX-KNOB is specifically designed as the controller for use with any of the following Alpine Amplifiers (as of August 2012):

  • PDX Series: PDX-M12, PDX-M6, PDX-V9
  • MRX Series: MRX-M55, MRX-M110, MRX-M240, MRX-M50, MRX-M100, MRX-M200, MRX-V60, MRX-V70

Rotary Dial: The Alpine RUX-KNOB is equipped with a rotary knob (0-12 dB) for adjustment of your connected amplifier's bass level.

RJ-25 Connector: The RUX-KNOB includes a 16' RJ-25 cable which connects between the wired-remote knob and your compatible Alpine amplifier.

Mounting: The RUX-KNOB features two integrated mounting brackets and includes four mounting screws to mount the knob under or on your dash.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

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