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Pioneer’s new extra-efficient Class-D digital amplifiers mark a dramatic improvement in power output capability, yet are 50% smaller than the current GM-Series Class-AB amplifiers. That makes them more versatile in terms of installation as well as performance.

Features of GM-DX874

High Resolution Audio

High Resolution Audio

Pioneer’s new GM-DX874 Class-D digital amplifier is equipped with high quality sound components and tuning and is compatible with “Hi-Resolution” audio allowing simply the highest quality sound reproduction! The perfect partner to Pioneer’s exclusive speaker range, TS-Z Series! *The product with Hi-Res AUDIO logo is conformed to High-Resolution Audio standard defined by Japan Audio Society. The logo is used under license from Japan Audio Society.

The product with Hi-Res AUDIO logo is conformed to High-Resolution Audio standard defined by Japan Audio Society. The logo is used under license from Japan Audio Society.

High Resolution Audio

Higher Quality Parts

Higher Quality Parts

Audio Film Capacitors and low impedance coil are used for the output LC Filter to ensure excellent sound quality Audio Tuning based on the reproduction of the original audio source allows everyone to experience the difference in sound quality when connected

Higher Quality Parts

High Capacity Audio Source Capacitor

High Capacity Audio Source Capacitor

Pioneer original high capacity audio power source capacitor contributes to higher sound quality and stable power allotment event at high output.

High Capacity Audio Source Capacitor

Other features of GM-DX874

New Circuit Board
New Circuit Board

Pioneer's new digital amplifier circuit "Protection Control System" senses its internal temperature and automatically moderates input level accordingly

Variable LPF
Variable LPF

Variable LPF and HPF make audio frequency more adjustable according to subwoofer characteristics and personal listening preferences

Specifications of GM-DX874

Click to expand

No. of Channels: 4/3/2

Max. Wattage (4 ohms): 200W X 4

Max. Wattage  (2 ohms): 300W X 4

Max. Wattage  (1 ohm): 1200W (Total)

Wattage RMS (4 ohm <= 1% THD+N): 100W x 4 (20-20kHz)

Wattage RMS (2 ohm <= 1% THD+N): 150W x 4 (1kHz)

Wattage RMS (1 ohm <= 1% THD+N): >125WX4 (1kHz)

Wattage RMS (4 ohm, Bridged): 300W x 2 (1kHz)

Distortion (100Hz, 4 ohm, 10w): < 0.05%

S/N Ratio (IEC-A/IHF-A N/W): > 95dB

Frequency response: 10-50kHz (0,-3dB)

Max. Input Level (RCA): 6.5V (Low)

Max. Input Level (SP-Input): 16v (High)

Load Impedance: 1-8 ohm

Amplifier Class: CLASS D

Transistor: MOSFET

Input level control (RCA-IN): (200mv-6.5v)

Input level control (SP-IN): (0.8v-16v) (High)

Frequency: 50Hz (CH-B)

Bass Boost: 0-18dB

Bass Boost Remote: Yes (CH-B)

Low Pass Filter: 40-500Hz, -12dB/oct

High Pass Filter: 40-500Hz, -12dB/oct

Protection Indicator: RED (Side Panel)

Power Indicator: BLUE (Side Panel)

High Quality Parts: Yes

Hi-res Audio: Yes

Speaker input cable: 20cm

Bass Remote Cord: 5m

Hex Wrench: Yes

Mounting screws: 4 piece

Owner's manual: Yes

WARRANTY CARD: Yes

Chassis size (W x H x D): 252 mm x 60 mm x 215 mm

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