JBL Club A5055 5-Channel Car Amplifier
Description
Description
The JBL Club A5055 5-Channel Car Amplifier is the complete system amplifier — 50W RMS x4 at 4 ohms (65W RMS x4 at 2 ohms) for your speakers, plus 320W RMS x1 at 4 ohms (500W RMS x1 at 2 ohms) for your subwoofer, all in a single chassis. One amp, one power run, one ground — full system power for front stage, rear fill, and sub. Bridge the front channels to 140W RMS x2 for a high-powered front stage alongside the 500W sub channel, and you have a 3-channel configuration that rivals dedicated multi-amp setups.
The Club A5055 is built around JBL's Club Series amplifier platform, delivering clean, efficient power across all five channels simultaneously. The four full-range channels handle 50W RMS x4 at 4 ohms or 65W RMS x4 at 2 ohms — enough to drive JBL Club Series component speakers to their rated power. The dedicated subwoofer channel puts out 320W RMS at 4 ohms or 500W RMS at 2 ohms, with a 0–12dB bass boost at 45Hz and a 0/180-degree phase switch for precise sub integration. Variable high-pass and low-pass crossover filters (32–320Hz, 12dB/octave) on the front/rear channels and a dedicated low-pass filter (32–320Hz, 12dB/octave) on the sub channel give you full system crossover control without a separate processor. Both preamp (RCA) and speaker-level inputs are supported for seamless integration with factory head units or aftermarket sources. An included remote bass knob keeps subwoofer level control at your fingertips. Fuse rating is 30A x3 (90A total); recommended wiring is 4-gauge power and ground.
The Club A5055 is the ideal single-amp solution for a complete JBL Club Series system — pair with Club 64C or Club 64CSQ component speakers up front, Club 64 coaxials in the rear, and a JBL Club Series subwoofer for a fully matched, high-output system. Dimensions: 36cm W x 5.1cm H x 18cm D. Weight: 4.2 kg.
Why Choose the JBL Club A5055?
- True 5-Channel System Amp: Powers front stage, rear fill, and subwoofer from a single chassis — one power run, one ground, complete system coverage.
- 500W RMS Subwoofer Channel (2Ω): Serious sub power — enough to drive most single or dual voice coil subwoofers to their rated RMS.
- Bridgeable Front Channels (140W RMS x2): Bridge channels 1+2 and 3+4 for a high-powered front stage alongside the dedicated sub channel — 3-channel mode for maximum front stage impact.
- Variable Crossovers (32–320Hz, 12dB/oct): Full system crossover control on all channels — no separate crossover or DSP required for basic system integration.
- 0–12dB Bass Boost @ 45Hz: Dial in sub punch without a separate processor — 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.
- Remote Bass Knob Included: Keep subwoofer level control at your fingertips without reaching into the trunk.
Wiring & System Recommendations
Use 4-gauge power and ground wire — fuse within 18 inches of the battery at 90A total (30A x3). For a full JBL Club Series system: run channels 1+2 to front Club 64C or 64CSQ components (high-pass at 80Hz), channels 3+4 to rear Club 64 coaxials (high-pass at 80Hz), and the sub channel to a JBL Club Series subwoofer (low-pass at 80Hz). Set the sub channel bass boost to taste — start at 0dB and increase only if needed. For a 3-channel high-powered front stage, bridge channels 1+2 to 140W RMS and 3+4 to 140W RMS, and run the sub channel at 500W RMS into a 2-ohm load. A DSP processor between the head unit and amp will add time alignment and active crossover control for a significant performance upgrade.
Full Specifications
| Specification | Value |
|---|---|
| Brand | JBL |
| Model | Club A5055 |
| Channels | 5 |
| Power Output (4Ω, Full Range) | 50W RMS x4 |
| Power Output (2Ω, Full Range) | 65W RMS x4 |
| Bridged Power (4Ω) | 140W RMS x2 |
| Sub Channel Power (4Ω) | 320W RMS x1 |
| Sub Channel Power (2Ω) | 500W RMS x1 |
| Front/Rear Crossover | HP/LP Variable, 32–320Hz, 12dB/oct |
| Sub Crossover | LP Variable, 32–320Hz, 12dB/oct |
| Bass Boost | 0–12dB @ 45Hz (Sub Channel) |
| Phase Switch | 0° / 180° (Sub Channel) |
| Inputs | Preamp (RCA) & Speaker-Level |
| Fuse Rating | 30A x3 |
| Recommended Wiring | 4-Gauge Power & Ground |
| Dimensions (W x H x D) | 36cm x 5.1cm x 18cm |
| Weight | 4.2 kg |
Frequently Asked Questions
Q: Can I use the Club A5055 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 5-channel amplifiers to integrate into an OEM system.
Q: Can I bridge the Club A5055 for more front stage power?
A: Yes — bridge channels 1+2 for 140W RMS at 4 ohms and channels 3+4 for 140W RMS at 4 ohms, while the sub channel runs independently at up to 500W RMS at 2 ohms. This 3-channel configuration delivers a high-powered front stage alongside serious sub output.
Q: What subwoofer pairs best with the Club A5055?
A: A JBL Club Series subwoofer rated 300–500W RMS is the natural match. Wire a dual voice coil sub to 2 ohms to take full advantage of the 500W RMS sub channel output. Contact us at Trinity Car Audio for a specific subwoofer recommendation based on your enclosure and goals.
Q: Do I need a DSP processor with the Club A5055?
A: Not for basic system integration — the onboard crossovers handle speaker protection and sub integration. However, a DSP processor adds time alignment, active crossover control, and equalization that will significantly improve soundstage imaging and overall system performance, especially with a component front stage.
