Grand Touring GT8SW - Subwoofer JBL - Free user manual and instructions
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| Product type | Subwoofer |
| Brand | JBL |
| Model | Grand Touring GT8SW |
| Speaker size | 8 inches (20 cm) |
| Peak power | 300 watts |
| RMS power | 150 watts |
| Impedance | 4 ohms |
| Sensitivity | 90 dB |
| Frequency response | 35 Hz - 500 Hz |
| Mounting depth | 100 mm (3.9 in) |
| Mounting cutout diameter | 180 mm (7.1 in) |
| Recommended sealed box volume | 0.5 cu ft (14 L) |
| Recommended ported box volume | 0.75 cu ft (21 L) |
| Recommended amplifier power | 75 - 200 watts RMS |
| Cone material | Polypropylene with rubber surround |
| Connectivity | Wired (push terminals) |
| Weight | 5 kg (11 lbs) |
| Installation | Car audio system |
| Maintenance | Clean with a dry cloth |
| Safety | Ensure correct polarity and secure mounting |
| Spare parts | Not available separately |
| General information | Designed for deep bass reproduction in car audio |
Frequently Asked Questions - Grand Touring GT8SW JBL
What is the recommended enclosure for the JBL Grand Touring GT8SW?
For optimal performance, use a sealed enclosure of 0.5 cu ft (14 L) or a ported enclosure of 0.75 cu ft (21 L) tuned to 35 Hz.
What amplifier power should I use?
The GT8SW handles up to 150 watts RMS and 300 watts peak. A suitable amplifier should deliver between 75 and 200 watts RMS to ensure clean power without distortion.
What is the impedance of this subwoofer?
The subwoofer has a single 4-ohm voice coil. Ensure your amplifier is stable at 4 ohms for proper power transfer.
What is the frequency response?
The frequency response ranges from 35 Hz to 500 Hz, making it ideal for reproducing low bass frequencies in music and movies.
Can I install this subwoofer in my car?
Yes, the GT8SW is designed for car audio systems. It requires an external enclosure and a compatible amplifier.
What is the mounting depth?
The mounting depth is 100 mm (3.9 inches), which fits most standard enclosures and trunk installations.
How do I clean and maintain the subwoofer?
Gently wipe the cone and surround with a dry microfiber cloth to remove dust. Avoid liquids and abrasive cleaners.
Is a separate amplifier necessary?
Yes, this is a passive subwoofer and requires an external amplifier to produce sound. Connect it to your stereo's amplified channels or a dedicated monoblock.
What is the sensitivity rating?
The sensitivity is 90 dB, meaning it can produce moderate volume even with lower power, but it shines with a quality amp.
Are replacement parts available?
Replacement parts are not sold separately for this model. For repairs, contact JBL authorized service centers.
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USER MANUAL Grand Touring GT8SW JBL
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Product information
Brand : JBL
Model : Grand Touring GT8SW
Category : Subwoofer