APMQ-56125 5 Channel Mini Design Class AB Mosfet Amplifier
APMQ-56125 5 Channel Mini Design Class AB Mosfet Amplifier is backordered and will ship as soon as it is back in stock.
Shipping & delivery
Usually ships in 2–3 business days unless a different lead time is shown on this page. Shipping cost is calculated at checkout (UPS or USPS to the contiguous U.S.).
Shipping policy · Returns · Fitment questions? (561) 207-7988
Delivery and Shipping
Delivery and Shipping
Standard order processing is 2–3 business days unless this product or your order confirmation states a different lead time. Custom-built, made-to-order, backorder, and pre-order items follow their stated lead times.
Enclosures and subwoofer boxes ship for $50 per unit. Other shipping charges are calculated at checkout. Orders outside the contiguous 48 United States may require additional shipping; we will contact you for approval before shipment.
Subwoofer boxes ship UPS Ground where available. Read our Shipping Policy and Return and Refund Policy for delivery, product-specific return windows, and warranty details.
APMQ-56125 5 Channel Mini Design Class AB Mosfet Amplifier is backordered and will ship as soon as it is back in stock.
Description
Description
- CLASS A/B / MOSFET AMPLIFIER: The APMQ-56125 features a Class A/B circuit design combined with MOSFET power management, delivering powerful, clean, and dynamic audio performance without sacrificing clarity or stability.
- MINI COMPACT DESIGN: Built with a space-efficient chassis for easy installation in cars, SUVs, motorcycles, UTVs, golf carts, and other limited-space interiors—ideal for modern multi-speaker audio setups.
- ADVANCED MOSFET POWER CIRCUITRY: Designed for maximum output with minimal distortion, providing stable and controlled amplification across all five channels for full-range systems plus a dedicated subwoofer channel.
- CONTINUOUS POWER OUTPUT (RMS) @ <1% DISTORTION:
- RMS @ 2 Ohm: 4CH x 250W + 1CH x 420W
- RMS @ 4 Ohm: 4CH x 145W + 1CH x 260W
- OUTPUT POWER @ 4 Ohm BRIDGED: 2 x 500W
- INCLUDED PROTECTION FUSE: Comes equipped with a 100A ANL fuse for circuit protection and stable current handling.
- FREQUENCY RESPONSE:
- CH 1-4: 10Hz – 18kHz
- CH 5 (SUB): 10Hz – 180Hz
- INPUT SENSITIVITY LEVEL:
- CH 1–4: 0.2V – 4V
- CH 5: 0.08V – 2.2V
- S/N RATIO: >90dB
- THD (ALL CHANNELS DRIVEN): <0.8%
- WORKING VOLTAGE: 9V – 16V
- VARIABLE FILTER CONTROL: Adjustable filtering to fine-tune system response for front, rear, and subwoofer channels.
- LED INDICATOR SYSTEM: Equipped with power and protection indicator LEDs for real-time operational monitoring.
- MULTI-LEVEL PROTECTION SYSTEM: Built-in overload, overheating, short circuit, and low-voltage protection for dependable long-term use.
- REMOTE BASS LEVEL CONTROL: Includes a dashboard-mount remote bass knob for easy subwoofer level adjustment while driving.
- DIMENSIONS: 14.1” x 2.1” x 6.2” (L x W x H) / 359 x 54 x 158 mm
Description:
Experience clean, dynamic, and balanced sound across your entire system with the APMQ-56125 Mini Design 5-Channel MOSFET Amplifier. Engineered for compact integration and high-power output, this amplifier delivers strong RMS performance at both 2-ohm and 4-ohm impedance, with bridgeable channels and a dedicated subwoofer output. Featuring MOSFET technology, onboard protection circuits, adjustable filters, and a remote bass control knob, it provides full system flexibility and customization. Perfect for users seeking a compact 5-channel upgrade without compromising power, clarity, or stability—upgrade your ride with the APMQ-56125.
Fitment & installation
Fitment & installation
Check the selected part against your vehicle. Need help? Call (561) 207-7988.
Selected part: APMQ-56125
Loading vehicle fitment…
Read FOX’s application notes for part 987-24-001 (rear shock)
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.











