ESX SX1000.1 Mono Class D Amplifier

The ESX SX1000.1 is a SIGNUM SX mono Class D amplifier for subwoofer systems that need compact size with serious bass output. The official ESX page confirms 1 x 500W RMS at 4 ohm, 1 x 800W RMS at 2 ohm and 1 x 1080W RMS at 1 ohm.

It uses a compact die-cast aluminium heatsink and includes RCA inputs and outputs, high-level inputs with EPS, auto turn-on, start/stop readiness, subsonic filtering, low-pass filtering, bass boost and a compact bass remote controller.

Key specifications

• Mono Class D digital amplifier
• 1 x 500/800/1080W RMS at 4/2/1 ohm
• Subsonic filter 10 - 50 Hz
• Low-pass filter 40 - 250 Hz
• Bass boost 0 - 12 dB
• RCA inputs and outputs
• Compact bass remote controller included
• Dimensions 140 x 44 x 225 mm
• Efficiency up to 90%

Best used for

Use the SX1000.1 when you need a compact mono amplifier for a subwoofer system, especially as the matching bass amplifier alongside SX800.2 or SX800.4 full-range systems.

Setup note

Subwoofer impedance, gain and filter setup matter on mono amplifiers. If you are unsure how to match this amplifier to your subwoofer, send us your system details by WhatsApp or email before ordering and we will help check the setup.