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JL Audio HD1200/1 HD Mono Block Amplifier
JL Audio 1 x 1200 RMS 4Ω
( JL Audio HD12001)
- Australian JL Audio Warranty
- Purchase Guarantee (see T&C's)
- JL Audio HD1200/1 — Class D mono amplifier.
- 1200 W RMS across 1.5–4 Ω with R.I.P.S. tech.
- Single-Cycle Control ensures clean, powerful bass.
- Premium brushed aluminum body with cast alloy heat sinks.
Overview
The JL Audio 1 x 1200 RMS 4Ω amplifier delivers massive power with precision and clarity, ideal for driving high-performance subwoofers. Engineered with advanced Class D technology, it ensures efficient power delivery and minimal distortion even at high output levels. Its compact design allows flexible installation while maintaining superior thermal stability. With JL Audio’s signature build quality, this monoblock amp provides clean, dynamic bass and exceptional control. Perfect for audiophiles demanding deep, authoritative sound, it combines reliability, performance, and refined engineering for a premium in-car audio experience that remains consistent under any listening condition.
Key Features:
Monoblock Amplifier
Delivers massive, precise bass power ideal for driving high-performance subwoofers.
Power Handling
Rated at 1200 W RMS into 1.5–4 Ω for authoritative, distortion-free low-frequency output.
Advanced Class D Design
Efficient switching topology provides high output with minimal distortion and excellent power delivery.
Thermal Stability
Compact, well-engineered chassis and cooling maintain consistent performance under heavy loads.
Installation Flexibility
Space-saving form factor allows flexible mounting in tight vehicle environments.
Premium Build
Engineered for reliability with JL Audio’s signature quality for sustained, refined in-car bass performance.
| Rated Continuous (RMS) Power @ 14.4 V | |
| @ 4 Ω | 1200 W RMS x 1 |
| @ 3 Ω | 1200 W RMS x 1 |
| @ 2 Ω | 1200 W RMS x 1 |
| @ 1.5 Ω | 1200 W RMS x 1 |
| Rated Continuous (RMS) Power @ 12.5 V | |
| @ 4 Ω | 1200 W RMS x 1 |
| @ 3 Ω | 1200 W RMS x 1 |
| @ 2 Ω | 1200 W RMS x 1 |
| @ 1.5 Ω | 1200 W RMS x 1 |
| General Specification | |
| Frequency Response | 6 Hz - 8 kHz (+0, -1dB) |
| S/N Ratio, referred to highest rated power | >110 dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
| S/N Ratio, referred to 1 W (Main Channels) | >79 dB (A-weighted, 20 Hz - 20 kHz noise bandwidth) |
| Damping Factor @ 4 Ω | >500 / 50 Hz |
| Damping Factor @ 2 Ω | >250 / 50 Hz |
| THD+N @ Rated Power (Main Channels) | <0.03% @ 4 Ω |
| Input Voltage Range @ RCA Inputs | Switchable from 200 mV - 2 V RMS (Low) to 800 mV - 8 V RMS (High) |
| Min.Copper Power / Ground Wire Gauge | 2 AWG wire |
| Fuse Rating | 100 A (AFS, AGU or MaxiFuse™) |
| Signal Processing | |
| Filter Mode(s) | Low-Pass or High-Pass |
| Filter Slope(s) | 12/24 dB/octave |
| Filter Frequency Range | 50 Hz - 500 Hz |
| Detented, Calibrated Filter Freq. Potentiometer | Yes |
| Filter Defeat Function | Yes |
| Infrasonic Filter | 30 Hz, defeatable |
| Bass Boost EQ | No |
| Output Polarity Switch | Yes |
| Remote Subwoofer Level Control | Optional (HD-RLC) |
| Remote Bass EQ Boost Control | No |
| Pass-Through Preamp Output | Buffered |
| Physical Specification | |
| Height (H) | 1.93 in / 49 mm |
| Width (W) | 10.74 in / 273 mm |
| Depth (D) | 8.29 in / 211 mm |
| Net Weight | 6.6 lb / 2.99 kg |
- 1 x JL Audio 1 x 1200 RMS 4Ω
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