PWM-19 | Pre Amp Equalizer with Subwoofer Gain Control and Four Way Fader

Power Acoustik PWM‑19 - 4‑Band Parametric Equalizer with Subwoofer Control

The PWM‑19 is built for serious car audio enthusiasts who demand greater flexibility and finer control over their system’s output. Whether you're running an older stereo setup or a full aftermarket audio chain, this 4-band parametric equalizer gives you full access to precision tuning, without signal loss or distortion.

At the heart of the PWM‑19 is its isolated PWM (Pulse Width Modulated) power supply, engineered to deliver a clean audio path with minimal interference. This design ensures that your amplifiers receive stable voltage and consistent signal quality across all channels — front, rear, and subwoofer outputs.

For input flexibility, the PWM‑19 includes dual RCA stereo inputs, allowing you to switch between CD players and radio sources. Each input feeds into an advanced signal processor that supports ±12 dB of equalization across four independently adjustable frequency bands. This setup gives you control over the most critical parts of your sound curve: low bass, mid-bass, midrange, and high frequencies.

In addition to the 4-band EQ, this unit includes rotary gain controls for both input sensitivity and master output level. There are also independent knobs for subwoofer gain and front-to-rear fader control, letting you adjust your soundstage on the fly, whether you're parked or mid-commute.

A notable feature is the two-color illumination selector — green or amber — allowing visual integration with your vehicle's dash lighting. Compact and easy to mount, the chassis measures 4″ long by 7″ wide by just 1″ high, fitting cleanly in most console setups or glovebox installs.

Key Features:

• 4-Band Parametric Equalizer with dedicated low, mid-low, mid-high, and high-frequency adjustments
• Subwoofer Gain Control for accurate low-end tuning
• Rotary Input & Output Gain Control to match signal levels across components
• Front-to-Rear Fader for on-the-go soundstage control
• Dual RCA Inputs (CD/Radio) with source selection switch
• Isolated PWM Power Supply for low-noise operation and stable output
• 7V RMS Line Driver for strong, clean signal delivery to amps
• Selectable Green or Amber Backlight for dash matching
• Dimensions: 4″ x 7″ x 1″ (L x W x H)

Ideal For:

• Users integrating multiple amps or high-output subwoofers
• Systems where signal clarity and output voltage are critical
• Installers looking for RCA-based EQ control without DSP complexity
• Builds requiring low-noise, high-headroom line-level processing

With the PWM‑19, you don’t just tweak your system — you take control of it. This isn’t about flashy specs; it’s about getting your signal chain right. Every adjustment has a purpose, and every knob serves your ears.