JL Audio HD Series HD1200/1 业主指南

16  |  JL Audio - HD1200/1 Owner’s Manual  

17

Amplifier Topology:  Class D, switching type with 

patented Single-Cycle Control™ technology.

Power Supply: Pulse width modulation-regulated 

switching power supply

Recommended Fuse Value / Type:  100A (MaxiFuse™)

Rated Power:  

1200W RMS x 1 @ 1.5-4Ω (11V - 14.5V)

THD at Rated Power: <0.03% @ 4Ω  

(Average at 1 kHz)

Signal to Noise Ratio (20 kHz Bandwidth):  

Referred to Rated Power: 111 dBA

Referred to 1 Watt: 82.2 dBA

Frequency Response: 6 Hz - 8 kHz (+0, -1dB)

Damping Factor: 

>500 @ 4Ω per ch. / 50 Hz

>250 @ 2Ω per ch. / 50 Hz

Filter Type: State-variable, 12 dB/octave Butterworth or  

24 dB/octave Linkwitz-Riley

Filter Modes: Low-Pass or High-Pass, Defeatable.

Cutoff Freq. Range: Continuously variable, 50 - 500 Hz

No. of Inputs:  One Stereo Pair, sums to mono

Input Type:  Differential-balanced with RCA jack inputs

Input Range:  Switchable from 200mV - 2V RMS (Low) 

to 800mV - 8V RMS (High)

2-Channel, buffered pass-through type

10.74 in. x 7.85 in. x 1.93 in. (273 mm x 199.5 mm x 49 mm)

Dimensions do not include connectors.

Due to ongoing product development, all specifications are subject to 
change without notice.