--- product_id: 807217488 title: "Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable for Car Motorcycle Speakers Home Theater" brand: "jamher" price: "NT$2515" currency: TWD in_stock: true category: "Jamher" url: https://www.desertcart.tw/products/807217488-universal-car-rca-amplifier-level-controller-car-rca-audio-bass store_origin: TW region: Taiwan --- # Seamless bass level adjustment Universal plug & play RCA Precision RCA gain control Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable for Car Motorcycle Speakers Home Theater **Brand:** jamher **Price:** NT$2515 **Availability:** ✅ In Stock ## Summary > 🎛️ Take command of your bass—because your ride deserves to sound legendary. ## Quick Answers - **What is this?** Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable for Car Motorcycle Speakers Home Theater by jamher - **How much does it cost?** NT$2515 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/807217488-universal-car-rca-amplifier-level-controller-car-rca-audio-bass) ## Best For - jamher enthusiasts ## Why This Product - Trusted jamher brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Bass Mastery:** Dial in your perfect subwoofer level without menu diving—pure control at your fingertips. - • **Universal Compatibility:** Works flawlessly with most head units, amplifiers, cars, motorcycles, and home theater systems. - • **Compact & Discreet Design:** Small footprint fits anywhere—dashboard, glove box, or hidden for a sleek, professional look. - • **Plug-and-Play Installation:** No complex wiring needed; quick setup with included screws and universal RCA connectors. - • **Optimize Your Audio Ecosystem:** Balance front, rear, and subwoofer outputs for a tailored, immersive sound experience. ## Overview The JAMHER Universal Car RCA Amplifier Level Controller is a compact, easy-to-install device that provides precise control over your subwoofer and amplifier gain via universal RCA connections. Compatible with a wide range of vehicles and home audio systems, it allows seamless bass and volume adjustments on the fly, enhancing your audio experience without complicated setups. ## Description JAMHER Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable Specification: Color:Black Size(LWH):2.2*2.0*1.0 inch Interface: 2*RCA Output; 2*RCA Input Cable length: 19cm / 7.5inch Remote amplifier level controller Stereo RCA input and output Adds subwoofer level controls to any head unit It is very handy to adjust the subwoofer level without having to go into the menus in stereo Easy to install: The compact housing allows the car bass controller to be mounted virtually anywhere. Universal level controller allows for easy amplifier system control while driving.You can DIY mount the knob on your dashboard with the screws, also you can mounted in glove box and hidden out of the way. Universal RCA level controller made of premium material for durable and practical. Installing this knob, you can control the volume of bass with a turn of the knob instead of going through the radio every time. Great and helpful accessory for your car. ## Features - Perfect for balancing systems to change the music style and control your secondary output. You can set the subamplifier amount to maximum gain and effortlessly adapt to the desired effect by rotating the knob - This amplifier controller provides high-quality signal transmission with RCA composite cable, which is ideal for bass control or front and rear volume control between amplifiers - Dashboard mounted RCA amplifier level control is used to adjust amplifier gain, power level, stereo, equalizer or crossover volume, add subwoofer level control to any head unit or balance multiple amplifier mounts, and balance volume in any part of the amplification system - Easy to use: Wired remote volume control is compatible with most head unit and amplifier combinations; bass control simply connects the RCA input and output connector between the amplifier and the source unit; Stereo RCA input and output. Simple in and out connection, no additional wiring is required. 2 screws make your installation faster - The AMP-level controller has a universal RCA connection, suitable for a variety of vehicles, and can also be used in household subwoofers and motorcycles, speakers. Extensive contacts with radios, speakers, amplifiers, bass, etc ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0F2MTHX5J | | Item model number | HXR-RCA | | Manufacturer | JAMHER | | Package Dimensions | 16.99 x 10.79 x 3.71 cm; 50 g | ## Product Details - **Manufacturer:** JAMHER - **Mounting Type:** Surface Mount - **Brand:** JAMHER - **Number of Channels:** 2 - **UPC:** 707630307188 ## Images ![Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable for Car Motorcycle Speakers Home Theater - Image 1](https://m.media-amazon.com/images/I/61hASB1QswL.jpg) ![Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable for Car Motorcycle Speakers Home Theater - Image 2](https://m.media-amazon.com/images/I/61pTx0b9atL.jpg) ![Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable for Car Motorcycle Speakers Home Theater - Image 3](https://m.media-amazon.com/images/I/61Ygz7TRXBL.jpg) ![Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable for Car Motorcycle Speakers Home Theater - Image 4](https://m.media-amazon.com/images/I/71ac1Aqz1ML.jpg) ![Universal Car RCA Amplifier Level Controller Car RCA Audio Bass Control Knob Sub Amp Volume Control Cable for Car Motorcycle Speakers Home Theater - Image 5](https://m.media-amazon.com/images/I/71kZM640pPL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tw/products/807217488-universal-car-rca-amplifier-level-controller-car-rca-audio-bass](https://www.desertcart.tw/products/807217488-universal-car-rca-amplifier-level-controller-car-rca-audio-bass) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-08-24*