The flagship knob: four channel groups on a vivid AMOLED touchscreen

The PRO version of our quad encoder knob for the WVC-LITE / WVC / WVC-PRO. Two stacked concentric encoders give you four independent rings and four channel groups, crowned by an ultra-vivid 2.41″ AMOLED touchscreen.

Note: The wireless Knob is a controller, it does not operate as a standalone device! You need to pair it with a WVC (any version).

Key Features

• Gorgeous, ultra-vivid 2.41″ AMOLED touchscreen with deep blacks and rich contrast for live volume, dB readout, amplifier temperature, supply voltage, battery level, and signal strength
• Dual stacked concentric encoders: four independent rings, each controlling its own channel group
• High-quality aluminum housing that feels premium in your hand
• Flexible per-ring channel group assignment, configurable straight from the knob
• Long-range, encrypted AuralSync™ wireless link to your base station
• Live spectrum and oscilloscope views when paired with a WVC-PRO base station
• Rechargeable battery with USB-C charging, and the battery is user replaceable
• Automatic sleep with instant wake on press, plus over-the-air firmware updates

Why You’ll Love It

The most capable knob we make. Four zones under two fingertips, live system vitals on a display that stays legible in any light, and the same aluminum build quality as the rest of your LF Audio gear. If your system runs multiple channel groups, this is the control it deserves.

📖 Documentation

Full guides and troubleshooting at help.lf-audio.com/wvc:

• Knob Guide
• Channel Groups and Multi-Unit Control
• Firmware Updates
• Troubleshooting

The post WVC Quad PRO Knob appeared first on EM Audio Subwoofers.

The PRO knob: two channel groups on a vivid AMOLED touchscreen

The PRO version of our dual encoder knob for the WVC-LITE / WVC / WVC-PRO. Two full-size encoders give you two channel groups, crowned by an ultra-vivid 2.41″ AMOLED touchscreen that makes every readout pop, day or night.

Note: The wireless Knob is a controller, it does not operate as a standalone device! You need to pair it with a WVC (any version).

Key Features

• Gorgeous, ultra-vivid 2.41″ AMOLED touchscreen with deep blacks and rich contrast for live volume, dB readout, amplifier temperature, supply voltage, battery level, and signal strength
• Two independent precision encoders, each rated for a 100,000 cycle minimum rotational life, each with its own push button
• Independent control of two channel groups: subwoofers and mains, front and rear, or any two zones your system defines
• High-quality aluminum housing that feels premium in your hand
• Long-range, encrypted AuralSync™ wireless link to your base station
• Live spectrum and oscilloscope views when paired with a WVC-PRO base station
• Rechargeable battery with USB-C charging, and the battery is user replaceable
• Automatic sleep with instant wake on press, plus over-the-air firmware updates

Why You’ll Love It

Everything the dual knob does, on a screen that belongs in a flagship build. The AMOLED panel stays crisp in direct sunlight and glows without glare at night, and the aluminum housing matches the rest of your LF Audio gear.

📖 Documentation

Full guides and troubleshooting at help.lf-audio.com/wvc:

• Knob Guide
• Channel Groups and Multi-Unit Control
• Firmware Updates
• Troubleshooting

The post WVC Dual PRO Knob appeared first on EM Audio Subwoofers.

The BassWatch brings your entire system to your wrist. A bright 2.06-inch AMOLED touchscreen shows the time at a glance, then becomes a live readout for every AuralSync™ device in your system.

Stream your voice-coil or amplifier temperature from the WTH, your voltage from the HPVM, amplifier impedance, power output, and rise from the HPPM, or take command of your volume through the WVC. Move between voltage, temperature, live spectrum, oscilloscope, and waterfall views with a tap.

Note: The BassWatch is a display / controller, it is not meant to operate as a standalone device without companion devices. You need to pair it with a WVC, SSA, HPPM, HPVM, MAS, or other LF Audio devices. The more devices you pair it with, the more sensor data and control options become available.

Key Features

• Wireless freedom over AuralSync, streaming from every LF Audio device in your system with no extra cables to run
• Streams voltmeter, power meter, temperature, and system controller data straight to your wrist
• Real-time spectrum, oscilloscope, and waterfall views bring your signal into focus
• Full-color AMOLED touchscreen for adjusting volume and controlling devices remotely
• Raise-to-wake and intelligent multi-stage sleep keep the display ready without draining the battery
• Over-the-air updates deliver new features and refinements over time
• Rechargeable 400mAh battery for all-day, cable-free wear

Why You’ll Love It

Whether you’re dialing in a tuning session in the driveway, keeping an eye on your voltage and amplifier temps from the driver’s seat at a competition, or showing off your build at a meet, the BassWatch puts your system’s telemetry on your wrist. 

The watch face shows the time at a glance, then a tap drops you into a live monitoring screen for your WVC base station: voltage and volume on any base, plus amplifier temperature and real-time spectrum, oscilloscope, and waterfall views on a WVC-PRO or PRO 6.

Reach over and set your volume, or adjust the base station’s settings, straight from the screen, with no knob and no phone required.

It wakes when you raise your wrist, dims and sleeps on its own to save power, and charges over USB-C, so there’s nothing to wire in and nothing to reach for.

📖 Documentation

Full user guides, setup walkthroughs, and troubleshooting at help.lf-audio.com/basswatch

The post BassWatch appeared first on EM Audio Subwoofers.

The Wireless Data Display LITE (WDD-LITE) brings every AuralSync™ device in your system onto a single vivid 2.41″ AMOLED touchscreen. Voltage, wattage, amperage, temperatures, volume, and more, anywhere you want it.

Note: The WDD-LITE is a display / controller, it does not operate as a standalone device. You need to pair it with a WVC, SSA, HPPM, HPVM, MAS, or other LF Audio devices. The more devices you pair it with, the more sensor data and control options become available.

Key Features

• Live wireless data on a single screen: HPVM voltage, HPPM wattage / voltage / amperage, WTH amp and voice-coil temperatures, WVC volume, and more
• Vivid 2.41″ AMOLED touchscreen with deep blacks, high contrast, and swipe / tap navigation between connected devices
• Wireless freedom over AuralSync, no extra cables to run
• Flexible mounting: flush mount into your dash, or drop it into the included pod for a clean surface install
• Optional rechargeable battery, so you can choose a permanently powered build for in-vehicle install, or a portable build for demos and walk-arounds

Why You’ll Love It

Whether you’re showing off your build at a meet, dialing in a tuning session in the driveway, or keeping a permanent eye on amp temps and rail voltage from the driver’s seat, the WDD-LITE puts your entire system’s telemetry in the palm of your hand. The 2.41″ screen surfaces more data at once than a dash-mount controller, and the touch interface lets you flip between paired devices with a swipe.

Form factor

The WDD-LITE housing measures 59mm wide x 46.5mm tall x (28mm with battery / 23mm without), with the 2.41″ AMOLED touchscreen filling the front face. Compact enough to ride in a cup holder, pocket, or center-console tray between uses. Large enough to read at a glance from across the vehicle.

Installation options

The WDD-LITE is designed to install your way:

• Flush mount: drop the bare display into a 59mm x 46.5mm x (28m w battery / 23mm wo) cutout in your dash, panel, or kick for a clean, integrated factory look.
• Pod mount: use the included LF Audio pod for a surface install on top of the dash, A-pillar, or center console. No cutting required.

Full installation visuals at help.lf-audio.com/wdd-lite

Choosing a variant

• No battery: for permanent powered install, wired into your vehicle. Lower cost, never needs charging, always on with the vehicle.
• With rechargeable battery: for portable use at meets, demos, tuning sessions, walk-around diagnostics. Untethered, grab-and-go with 8 hours of runtime.

📖 Documentation

Full user guides, installation videos, and troubleshooting at help.lf-audio.com/wdd-lite

The post (WDD-LITE) Wireless Data Display LITE appeared first on EM Audio Subwoofers.

Built on an overbuilt electrical backbone and ruthlessly efficient board design, the 12,500 is born to push the hardest subwoofers to their absolute edge—and then keep going. The precision-tuned output stage, massive internal bus bars, and military-grade power supply ensure raw, unrelenting current delivery. High-speed MOSFETs and advanced thermal management keep this monster running cool when others would be in flames. Every component screams one purpose: maximum output, zero mercy.

Aggressive doesn’t even begin to describe the sound. The 12,500 doesn’t just hit—it slams, delivering thunderous low-end authority with surgical control and zero distortion. It’s designed for competitors, bass fanatics, and anyone who believes “loud enough” is never enough. Pair it with Ruthless Audio subs, and you’ll feel every decibel of dominance. This isn’t just an upgrade—it’s a declaration of war on weak systems.

12500W @ 1 ohm 14.4v

7500W   @ 2 ohm 14.4v

4000W  @ 4 ohm 14.4v

Tiffany Inputs

1/0 Inputs

Input Sensitivity 6v-.2v

Frequency Response 10hz-250

phase 0-180

THD @ 4ohm > .01

Extended Warranty

No – Standard Warranty (1 Year)

Includes the standard 1-year manufacturer defect warranty.

Yes – Extended Warranty (2 Years Total)

Adds 1 additional year of manufacturer defect warranty coverage (2 years total).

The post Ruthless Audio 12500.1 Black appeared first on EM Audio Subwoofers.

With 800 Watts RMS, that is a sweet spot of power for driving high end component speakers and pro-audio setups with authority.  Bringing precision Class-D design and delivering high-efficiency performance with razor sharp clarity.  That power allows for flexible configurations, power all your door speakers or even bridge into 2 channels for bigger loads.  Built Ruthless tough, proven rugged construction for long-lasting, dependable performance.  Whether you’re upgrading a stock system or building a custom setup, the 800.4 Micro Amplifier delivers the muscle you need with the control you want — all in a ruthlessly compact chassis.

Extended Warranty

No – Standard Warranty (1 Year)

Includes the standard 1-year manufacturer defect warranty.

Yes – Extended Warranty (2 Years Total)

Adds 1 additional year of manufacturer defect warranty coverage (2 years total).

The post Ruthless Audio 800.4 Micro appeared first on EM Audio Subwoofers.

Built on an overbuilt electrical backbone and ruthlessly efficient board design, the 12,500 is born to push the hardest subwoofers to their absolute edge—and then keep going. The precision-tuned output stage, massive internal bus bars, and military-grade power supply ensure raw, unrelenting current delivery. High-speed MOSFETs and advanced thermal management keep this monster running cool when others would be in flames. Every component screams one purpose: maximum output, zero mercy.

Aggressive doesn’t even begin to describe the sound. The 12,500 doesn’t just hit—it slams, delivering thunderous low-end authority with surgical control and zero distortion. It’s designed for competitors, bass fanatics, and anyone who believes “loud enough” is never enough. Pair it with Ruthless Audio subs, and you’ll feel every decibel of dominance. This isn’t just an upgrade—it’s a declaration of war on weak systems.

12500W @ 1 ohm 14.4v

7500W   @ 2 ohm 14.4v

4000W  @ 4 ohm 14.4v

Tiffany Inputs

1/0 Inputs

Input Sensitivity 6v-.2v

Frequency Response 10hz-250

phase 0-180

THD @ 4ohm > .01

Option: Extended Warranty

No – Standard Warranty (1 Year)

Includes the standard 1-year manufacturer defect warranty.

Yes – Extended Warranty (2 Years Total)

Adds 1 additional year of manufacturer defect warranty coverage (2 years total).

The post Ruthless Audio 12500.1 Red appeared first on EM Audio Subwoofers.

We believe in our 10k design to the point that a 0.5 ohm 1-year warranty is included.  Triple power & grounds keep the current flowing.  Tiffany RCA inputs for quality RCA connection, and outputs if you are crazy enough to run more than one in your audio build.  Sleek design and heavy duty heat sink will keep your 10k running well and looking good for years to come.

Includes .5 one year warranty

10000 at 1 ohm 14.4v

6000 at 2 ohm 14.4v

3000 at 4 ohm 14.4v

Tiffany Inputs

1/0 Inputs

Input Sensitivity 6v-.2v

Frequency Response 10hz-250

phase 0-180

THD @ 4ohm > .01

Requires (3) 350 max amp fuses one per positive run for warranty

Amp dimensions

Length: 32 – 1/8”
Width: 10- 1/2”
Height: 2.75”

Extended Warranty

No – Standard Warranty (1 Year)

Includes the standard 1-year manufacturer defect warranty.

Yes – Extended Warranty (2 Years Total)

Adds 1 additional year of manufacturer defect warranty coverage (2 years total).

The post Ruthless Audio Red 10000.1 appeared first on EM Audio Subwoofers.

Every detail of the 7,500 has been crafted for reliability — from its rugged construction to its intelligent thermal management — ensuring it performs demo after demo without compromise.  This is not an amplifier for the casual listener. It’s built for those who crave chest-rattling impact, for those who compete, and for those who want to know what it feels like to harness brutal low-frequency energy with absolute control. The Ruthless Audio 7,500 Watt Monoblock doesn’t just power subwoofers. It unleashes them.

Includes .5 one year warranty

7500 at 1 ohm 14.4v

4000 at 2 ohm 14.4v

2500 at 4 ohm 14.4v

Tiffany Inputs

1/0 Inputs

Input Sensitivity 6v-.2v

Frequency Response 10hz-250

phase 0-180

THD @ 4ohm > .01

Length mounting feet to mounting feet 27” 

                                            Heatsink 25.625”

                                                      Width 10.5”

                                                    Height 2.75”

Extended Warranty

No – Standard Warranty (1 Year)

Includes the standard 1-year manufacturer defect warranty.

Yes – Extended Warranty (2 Years Total)

Adds 1 additional year of manufacturer defect warranty coverage (2 years total).

The post Ruthless Audio 7500.1 Black appeared first on EM Audio Subwoofers.

Every detail of the 7,500 has been crafted for reliability — from its rugged construction to its intelligent thermal management — ensuring it performs demo after demo without compromise.  This is not an amplifier for the casual listener. It’s built for those who crave chest-rattling impact, for those who compete, and for those who want to know what it feels like to harness brutal low-frequency energy with absolute control. The Ruthless Audio 7,500 Watt Monoblock doesn’t just power subwoofers. It unleashes them.

Includes .5 one year warranty

7500 at 1 ohm 14.4v

4000 at 2 ohm 14.4v

2500 at 4 ohm 14.4v

Tiffany Inputs

1/0 Inputs

Input Sensitivity 6v-.2v

Frequency Response 10hz-250

phase 0-180

THD @ 4ohm > .01

Length mounting feet to mounting feet 27” 

                                            Heatsink 25.625”

                                                      Width 10.5”

                                                    Height 2.75”

Extended Warranty

No – Standard Warranty (1 Year)

Includes the standard 1-year manufacturer defect warranty.

Yes – Extended Warranty (2 Years Total)

Adds 1 additional year of manufacturer defect warranty coverage (2 years total).

The post Ruthless Audio Red 7500.1 appeared first on EM Audio Subwoofers.