JL Audio JD700/5 JD Series 5 Channel Amp Full Range Class D Amplifier 700w RMS

The JL Audio JD700/5 is a 5-channel, full-range Class D amplifier delivering 700W RMS total — 100W RMS x 4 (main channels) plus 300W RMS x 1 (subwoofer channel) — from JL Audio's JD Series. It combines a 4-channel full-range amp and a monoblock sub amp in a single chassis.

Key specifications

• Channels: 5 (4 full-range + 1 subwoofer), Class D
• Main channels: 100W RMS x 4 @ 2 ohm, 75W RMS x 4 @ 4 ohm (14.4V)
• Subwoofer channel: 300W RMS x 1 @ 2 ohm, 180W RMS x 1 @ 4 ohm (14.4V)
• Filters: 12 dB/octave, 50–500 Hz (channels 1 and 2 also 500 Hz–5 kHz with x10); selectable high-pass, low-pass or defeat
• Bass boost: 0 to +12 dB @ 45 Hz
• Input voltage: low (200 mV to 2V RMS) or high (800 mV to 8V RMS), selectable
• Input modes: 2, 4 or 6 channel
• Turn-on: +12V remote wire, signal sensing or DC offset
• Fuse: 40A, minimum 4 AWG power and ground
• Remote level control: optional RBC-1 (subwoofer channel)
• Technology: NexD switching (enhanced pulse width modulation)
• Chassis: aluminium extruded with moulded end caps

The amp that does it all

The JD700/5 powers a complete system — door speakers and subwoofer — from one amplifier. Key features at a glance:

• 12 dB/octave filter with selectable high-pass, low-pass or defeat modes
• Selectable input voltage: low (200 mV to 2V RMS) to high (800 mV to 8V RMS)
• 3 turn-on options: +12V remote wire, signal sensing or DC offset
• Onboard LED clipping indicator simplifies level setting
• Signal routing flexibility with 2, 4 or 6-channel input mode

Efficient Class D design

Class D delivers compact size, minimal heat and high power output. JL Audio's NexD switching technology uses enhanced pulse width modulation to extend bandwidth, minimise distortion and improve efficiency further.

Total system power

The 4-channel section produces 400W total — 100W per channel — suited to door speakers. The dedicated 300W mono channel handles a 10- or 12-inch subwoofer. If you need a standalone subwoofer amplifier instead, the JL Audio JD500/1 is a JD Series monoblock rated at 500W RMS.

Signal processing

Each channel pair has a continuously variable high- or low-pass filter (12 dB/octave, 50–500 Hz). Channels 1 and 2 extend to 500 Hz–5 kHz with the x10 setting.

LED clipping indicator rings

An LED clipping indicator ring surrounds each input level potentiometer, letting you set input sensitivity quickly without additional test equipment.

Build and design

The JD Series uses an aluminium extruded chassis with moulded end caps. Power and protection LED indicators sit behind a black logo bar on the top surface.