JBL Club A1000 1,000W Mono Class-D Subwoofer Amplifier

The JBL Club A1000 1,000W Mono Class-D Subwoofer Amplifier delivers 600W RMS at 4 ohms and 1,000W RMS at 2 ohms — 2,000W peak — in a compact 32cm x 5.1cm x 18cm chassis. Class-D efficiency, variable low-pass filter, bass boost, phase switch, speaker-level inputs, and a 5-meter wired remote module make this a complete, no-compromise mono subwoofer amplifier for any system build.

The Club A1000 runs in Class-D, the most thermally efficient amplifier topology available — less heat generated means a smaller chassis, lower current draw, and more reliable long-term operation. Power output scales cleanly: 600W RMS at 4 ohms for standard single or dual voice coil subwoofers wired to 4 ohms, and 1,000W RMS at 2 ohms for maximum output from a DVC sub wired to 2 ohms. Frequency response spans 10Hz to 320Hz, covering the full subwoofer range from infrasonic rumble to upper bass punch. The variable low-pass filter (32–320Hz, 12dB/octave) handles subwoofer integration and speaker protection in one control. The variable bass boost (0–12dB at 45Hz) adds low-end punch without a separate processor. The 0°/180° phase switch aligns your subwoofer's phase with your main speakers for maximum bass output and impact. Both preamp (RCA) and speaker-level inputs are supported for seamless integration with factory head units or aftermarket sources. The included 5-meter wired remote module keeps subwoofer level control at your fingertips from the driver's seat. Fuse rating is 3 x 35A (105A total) — use 4-gauge or heavier power and ground wire.

Pair the Club A1000 with any subwoofer rated 500–1,000W RMS. Wire a DVC sub to 2 ohms to take full advantage of the 1,000W RMS output. Use a ported enclosure tuned to 30–35Hz for maximum low-frequency extension, or a sealed enclosure for tighter, more accurate bass. The Club A1000 pairs naturally with the JBL Stadium 122SSI subwoofer — set the SSI™ selector to 2 ohms and you have a perfectly matched 1,000W system.

Why Choose the JBL Club A1000?

• 1,000W RMS at 2 Ohms: Serious subwoofer power in a compact chassis — enough to drive virtually any 12" or 15" subwoofer to its rated RMS.
• Class-D Efficiency: Maximum power output with minimum heat generation — compact chassis, lower current draw, reliable long-term operation.
• Variable Low-Pass Filter (32–320Hz, 12dB/oct): Full subwoofer integration control — set your crossover point precisely without a separate processor.
• Variable Bass Boost (0–12dB @ 45Hz): Dial in sub punch without a separate EQ — tunable from flat to +12dB.
• 0°/180° Phase Switch: Align your subwoofer's phase with your main speakers for maximum bass output and impact.
• Speaker-Level Inputs: Connects directly to factory head unit speaker outputs — no line output converter required.
• 5-Meter Wired Remote Module: Keep subwoofer level control at your fingertips from the driver's seat — included in the box.
• Compact Chassis (32cm x 5.1cm x 18cm): Fits under seats, behind panels, or in tight trunk locations without sacrificing power.

Wiring & System Recommendations

Use 4-gauge power and ground wire — fuse within 18 inches of the battery at 105A total (3 x 35A). For maximum output, wire a DVC subwoofer to 2 ohms and run the amp at 1,000W RMS. Set the low-pass crossover at 80Hz and the subsonic filter (if available on your head unit or DSP) at 25Hz for ported enclosures. Start the bass boost at 0dB and increase only if needed — excessive boost at high volume can cause clipping and damage your subwoofer. The Club A1000 pairs naturally with the JBL Stadium 122SSI — set the SSI™ selector to 2 ohms for a perfectly matched 1,000W system. Use 8 AWG or heavier speaker wire from amp to subwoofer.

Full Specifications

Frequently Asked Questions

Q: What subwoofer pairs best with the Club A1000?
A: Any subwoofer rated 500–1,000W RMS is a strong match. The JBL Stadium 122SSI is the natural pairing — set the SSI™ selector to 2 ohms and you have a perfectly matched 1,000W system. Contact us at Trinity Car Audio for a specific subwoofer recommendation based on your enclosure and goals.

Q: Can I use the Club A1000 with my factory head unit?
A: Yes — the speaker-level inputs connect directly to your factory head unit's speaker outputs without a line output converter. This makes it one of the easiest mono amplifiers to integrate into an OEM system.

Q: How do I wire my subwoofer to get 1,000W RMS?
A: Wire a dual voice coil (DVC) subwoofer to a 2-ohm final impedance. For a DVC 2-ohm sub, wire the coils in parallel for 1 ohm (too low) or in series for 4 ohms — use a DVC 4-ohm sub wired in parallel for 2 ohms to hit the 1,000W RMS output. Contact us at Trinity Car Audio and we'll confirm the right wiring configuration for your specific subwoofer.

Q: What gauge power wire do I need for the Club A1000?
A: Use 4-gauge power and ground wire for runs up to 12 feet. For longer runs or high-demand installs, step up to 2-gauge. Fuse within 18 inches of the battery at 105A total (3 x 35A fuses).