Alpine PDX-V9 4 Channels + Mono Power Density Digital Amplifier

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4 Channels + Mono Power Density Digital Amplifier

This audiophile range of PDX series amplifiers are designed and engineered for ultimate sound quality, power, performance and reliability. These sleek and stylish amplifiers have been re-designed from the ground up to deliver an amplifier range that not only look amazing, but perform flawlessly.

Incorporating new technology to maximise sonic quality, the new PDX amplifiers deliver extremely low distortion levels, wide bandwidth and industry leading S/N ratios. The new PDX amplifiers have an exceptionally high damping factor, more than 500 for the multi-channel PDX-V9. What’s more, the all-new PDX amplifiers are 20% smaller than the first generation models and their unique stacking design allows for a large multi amplifier system to be installed virtually anywhere.

These new PDX amplifiers are for the true car audio enthusiast, providing exceptional sound quality and performance.


Connectors: Quick Connect Terminals for Power Supply and Speaker Output
Terminal Layout: One-Sided
Mounting Design: Easy Stacking and Smart Installation


Amplifier Type: Class-D (Digital)
Channel Design: 4-channel + 1-channel (Mono)
Power Supply Design: DC-DC PWM Power Supply
Pre-Amp Stage: Discreet
Final Outputs: MOSFET
Crossover: Variable High Pass, Low Pass and Band Pass Filter
Gain Control: Continuously Adjustable Gain Control
Subsonic Filter: Variable Subsonic Filter
Bass Control: Remote Bass Control (RUX-KNOB) Ready
Low-battery Protection
Low-impedance Possibility
Current Protection: Over-Current, Over-Voltage and Thermal Protection
Board Circuitry: S.T.A.R. Circuit
Board Design: 6-layer Glass Epoxy PC Board
Power Indicator: Top Mounted LED Power/Status Indicator
Input Channel Mode Setting (CH1/2 & CH3/4): Input Channel Mode Setting (CH1/2 & CH3/4)
Input Channel Mode Setting (Subwoofer): Input Channel Mode Setting (Subwoofer)
Thermal Control: Thermal Management Control
CEA-2006 Power Ratings

CEA-2006 Power Rating: 100W RMS x 4 + 500W RMS x 1 (4-ohm/2-ohm, 14.4V at <1% THD+N)

Max Power Output Ratings

Max Power: 1600W

RMS Power Ratings

Per channel into 4 Ohms: 100W RMS x 4 + 500W RMS (4-ohm, 14.4V <1%THD+N)
Per channel into 2 Ohms: 100W RMS x 4 + 500W RMS (2-ohm, 14.4V <1%THD+N)
Bridged 4 Ohms: 200W RMS x 2 (4-ohm, 14.4V <1%THD+N)

Sound Tuning

Crossover Frequency (CH1/2, HPF): 30 – 600 Hz (x1), 300 – 6k Hz (x10), -12 dB/oct.
Crossover Frequency (CH3/4, HPF): 30 – 600 Hz (x1), -12 dB/oct.
Crossover Frequency (CH3/4, BPF): 30 – 600 Hz (HPF), 300 – 6k Hz (LPF), -12 dB/oct.
Crossover Frequency (Subwoofer): 50 – 600 Hz, -24 dB/oct.
Subsonic Filter: 3 – 30 Hz, -24 dB/oct.


Foot Print (WxHxD) mm: 257 x 50.8 x 192 mm
Foot Print (WxHxD) in: 10-1/8” x 2” x 7-1/2”


Power Requirements: 14.4 V.DC (11-16 V allowable)
Input Sensitivity (RCA Input): 0.2 – 4 V (CH1/2, CH3/4), 0.1 – 4 V (Subwoofer)
Input Impedance: >10k ohms
Frequency Response (+0, -3dB: 1W into 4 Ohms):
CH-1/2/3/4: 3 – 100k Hz
Subwoofer: 3 – 600 Hz
THD+N (10W into 4 Ohms):
CH-1/2/3/4: <0.005 %
Subwoofer: <0.006 %
THD+N (Rated Power into 4 Ohms):
CH-1/2/3/4: <0.03 %
Subwoofer: <0.05 %
Damping Factor:
CH-1/2/3/4: >500 into 4 ohms at 100Hz
Subwoofer: >1000 into 4 ohms at 100Hz
Signal to Noise (Rated Power into 4 Ohms):
CH-1/2/3/4: 112 dB
Subwoofer: 119 dB
Weight: 2.7 kg
*Note: Specifications and design are subject to change without notice.

Extra Information