{"product_id":"pioneer-gmd8704-1200w-class-fd-4-channel-bridgeable-amplifier-with-variable-hpf-lpf-bass-boost-remote","title":"Pioneer GMD8704 1200W Class-FD 4-Channel Bridgeable Amplifier with Variable HPF\/LPF \u0026 Bass Boost Remote","description":"\u003cp\u003e\u003cstrong\u003eCompact 4-Channel Class-FD Design With 1-Ohm Stability - Professional Multi-Channel Power!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cstrong\u003e1200W Maximum Power with Variable HPF\/LPF \u0026amp; Bridgeable Configuration\u003c\/strong\u003e\nThe Pioneer GM-D8704 Class-FD amplifier delivers exceptional multi-channel performance in a compact form factor 50% smaller than traditional Class-AB designs. With 1200W maximum power (4 x 100W RMS at 4Ω, 4 x 150W RMS at 2Ω, or 2 x 300W RMS bridged at 4Ω), this versatile amplifier powers front and rear speakers or combines channels for subwoofer applications. The 1-Ohm stable circuit with Pioneer's Protection Control System continuously monitors internal temperature and automatically adjusts input levels to prevent shutdown while maximizing performance. The included wired bass boost remote provides 0-18dB adjustment at 50Hz for optimal bass control.\n\nAdvanced audio tuning features include variable low-pass and high-pass filters (40-500Hz, -12dB\/oct slope) for precise frequency control, automatic signal sensing with speaker-level inputs for factory integration, and gain control for both RCA (200mV-6.5V) and speaker-level (0.8V-16V) inputs. The amplifier delivers 95dB signal-to-noise ratio and maintains only 0.05% distortion at 10W, ensuring crystal-clear reproduction across the entire 10Hz-50kHz frequency response. Installation is simplified with dual 30A fuses, negative grounding, and ultra-compact dimensions (252mm x 60mm x 215mm) for versatile mounting options. The efficient Class-FD design minimizes heat generation while maximizing power delivery, making this amplifier ideal for comprehensive sound system upgrades.\n\n\u003cp\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1200W Maximum Power Output\u003c\/strong\u003e - 4 x 100W RMS at 4Ω, 4 x 150W RMS at 2Ω, 2 x 300W RMS bridged for flexible speaker and subwoofer configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Ohm Stable Circuit\u003c\/strong\u003e - Enhanced flexibility for multiple subwoofer connections with stable, durable circuitry and Protection Control System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable HPF\/LPF Crossovers\u003c\/strong\u003e - Adjustable 40-500Hz cut-off frequency with -12dB\/oct slope for precise frequency control and system tuning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Bass Boost Remote\u003c\/strong\u003e - 0-18dB boost at 50Hz for real-time bass level adjustment according to listening preferences and music characteristics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Signal Sensing\u003c\/strong\u003e - Pioneer's auto-sensing automatically selects between RCA and speaker-level inputs for seamless factory integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker-Level Inputs\u003c\/strong\u003e - Connect directly to factory systems without RCA adapters, simplifying installation and saving money\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design\u003c\/strong\u003e - 50% smaller than Class-AB amplifiers (252mm x 60mm x 215mm) for versatile installation in tight spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency Class-FD\u003c\/strong\u003e - Advanced switching technology maximizes power output while minimizing heat generation and current draw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Control System\u003c\/strong\u003e - Continuously monitors temperature and automatically adjusts input levels to prevent circuit shutdown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Audio Quality\u003c\/strong\u003e - 95dB SNR, 0.05% THD, 10Hz-50kHz frequency response for clean, detailed sound reproduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier Class:\u003c\/strong\u003e Class-FD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 4\/3\/2 (4-Channel, 3-Channel, or 2-Channel Bridged)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Power Output:\u003c\/strong\u003e 200W x 4 (4Ω) \/ 300W x 4 (2Ω) \/ 250W x 4 (1Ω) \/ 600W x 2 (4Ω Bridged)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRMS Power Output:\u003c\/strong\u003e 100W x 4 (4Ω) \/ 150W x 4 (2Ω) \/ 125W x 4 (1Ω) \/ 300W x 2 (4Ω Bridged)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Maximum Power:\u003c\/strong\u003e 1200W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance:\u003c\/strong\u003e 1-8Ω (1Ω Stable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 10Hz - 50kHz (+0dB, -3dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-Noise Ratio:\u003c\/strong\u003e 95dB (IEC-A Network)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistortion:\u003c\/strong\u003e 0.05% (10W, 1kHz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Filter:\u003c\/strong\u003e 40-500Hz, -12dB\/oct Slope\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable High-Pass Filter:\u003c\/strong\u003e 40-500Hz, -12dB\/oct Slope\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBass Boost:\u003c\/strong\u003e 0-18dB at 50Hz (Wired Remote Control)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e RCA, Speaker-Level with Auto-Sensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain Control:\u003c\/strong\u003e RCA 200mV-6.5V \/ Speaker 0.8V-16V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Input:\u003c\/strong\u003e RCA 6.5V\/25kΩ \/ Speaker 6.5V\/12kΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse:\u003c\/strong\u003e 30A x 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 14.4V DC (10.8V - 15.1V allowable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Consumption:\u003c\/strong\u003e 29A at Continuous Power (4Ω)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 252mm (W) x 60mm (H) x 215mm (D)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.9kg\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PIONEER","offers":[{"title":"Frankies Auto Electrics","offer_id":40427170300105,"sku":"10039792","price":369.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/9803\/5810\/files\/c4724fa2375a492592a84824c2c01fc7.jpg?v=1768341125","url":"https:\/\/www.jbhifi.com.au\/products\/pioneer-gmd8704-1200w-class-fd-4-channel-bridgeable-amplifier-with-variable-hpf-lpf-bass-boost-remote","provider":"JB Hi-Fi","version":"1.0","type":"link"}