JBL Stage GT 50011 Amp Monoblock 1 Channel Subwoofer Car Amplifier 500w RMS
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The JBL Stage GT 50011 is a compact Class D monoblock car subwoofer amplifier delivering 500W RMS at 2 ohms or 300W RMS at 4 ohms, from JBL's Stage GT range.
It accepts both low-level and high-level (speaker) inputs, and a high-level input cable is included for factory head units.
Key specifications
- Type: Class D mono (1 channel)
- RMS power: 500W at 2 ohms, 300W at 4 ohms
- Maximum power: 1220W peak
- Frequency response: 10Hz – 320Hz ±1dB
- Low-pass filter: 32Hz – 320Hz
- Bass EQ: 0 – 12dB adjustable at 30Hz – 100Hz
- Bass EQ width: narrow – wide
- Phase: 0° – 180° adjustable
- Input sensitivity: 0.2V – 5V (low-level), 1V – 25V (high-level)
- Supply voltage: 9V – 16V
- Remote bass control: included
Class D mono subwoofer amplifier
The Stage GT 50011 is small in size but big in performance. Adjustable low-pass filter, bass EQ and phase control let you tune the bass precisely to your car.
- Maximum power: 1220W peak
- RMS power: 500W @ 2 ohms; 300W @ 4 ohms
- Frequency response: 10Hz – 320Hz ±1dB
- Bass EQ: 0–12dB adjustable
- Bass EQ frequency: 30Hz – 100Hz
- Bass EQ width: narrow – wide
- Phase adjustment: 0°–180° adjustable
- Low-pass filter: 32Hz – 320Hz
Explore the full range in JBL Stage.
Specification
| Maximum power | 1220W peak |
|---|---|
| RMS power | 500W @ 2 ohms; 300W @ 4 ohms |
| Frequency response | 10Hz – 320Hz ±1dB |
| Bass EQ | 0–12dB adjustable |
| Bass EQ frequency | 30Hz – 100Hz |
| Bass EQ width | narrow – wide |
| Phase adjustment | 0°–180° adjustable |
| Low-pass filter | 32Hz – 320Hz |
| Input sensitivity | 0.2V – 5V (low); 1V – 25V (high) |
| Protection | against short circuit, overvoltage, undervoltage, overheating |
| Supply voltage | 9V – 16V |
| Fuses | 2x 30A |
What's Included
- 1x JBL Stage GT 50011 amplifier
- 1x Remote bass control
- 1x Remote bass control cable
- 2x Spare fuse
- 1x High-level input cable
- 4x Mounting screw with washer
JBL
About the JBL Stage GT 50011
From our tech experts at CEN
A monoblock subwoofer amplifier from JBL, rated at 500w RMS.
Who it suits
Anyone adding a subwoofer that needs more than a powered unit can give it.
Our tech experts advise
Matching matters more than headline watts, and gains want setting with a meter rather than by ear. It needs a fused feed from the battery on the correct cable gauge. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
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Frequently Asked Questions
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: What wiring do I need to install this amplifier?
A: You will need an amplifier wiring kit sized to the amplifier's power draw, typically including power and earth cable, a fuse, RCA leads and a remote wire. CEN stocks complete wiring kits, and the amplifier's fuse rating is the guide to the cable gauge required.
Q: What class of amplifier is this and does it matter?
A: Class D amplifiers are compact and efficient, ideal for subwoofers and modern installs. Class AB designs are traditionally favoured for outright sound quality on mid and high frequencies. The class is listed in the Specification tab where provided.
Q: Will an amplifier work with my factory head unit?
A: Yes, in most cases. If your head unit has no RCA outputs you will need a line output converter to feed the amplifier a clean signal. CEN stocks line output converters and can advise the right one for your vehicle.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional amplifier installation from our Nottingham premises, including secure mounting, wiring and setup. Contact us to book.
Q: Can the JBL Stage GT 50011 connect to a factory stereo?
A: Yes. It has high-level inputs (1V to 25V) and a high-level input cable is included, as well as low-level inputs (0.2V to 5V).
Q: How much power does the Stage GT 50011 deliver at 4 ohms?
A: 300W RMS at 4 ohms, rising to 500W RMS at 2 ohms.
Q: What's in the box with the Stage GT 50011?
A: The amplifier, a remote bass control and its cable, two spare fuses, a high-level input cable and four mounting screws with washers.
