Audio/Electronics Stereo System Installation Info, Amplifiers, Subwoofers, Radar Detectors, Police Scanners, and CB Radios for the Corvette
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Old Apr 20, 2026 | 02:25 PM
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SteveGrady64's Avatar
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Default Jbl gx502

I have researched many threads and many people are upgrading their C5 door twiddlers with the JBL GX305 and rear with the JBL GX502, keeping the Bose subs. I can find the 302s but it seems the 502s are no longer made, Is the GX528 a good substitute?
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Old Apr 20, 2026 | 05:45 PM
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Originally Posted by SteveGrady64
I have researched many threads and many people are upgrading their C5 door twiddlers with the JBL GX305 and rear with the JBL GX502, keeping the Bose subs. I can find the 302s but it seems the 502s are no longer made, Is the GX528 a good substitute?
I'd say so, the specs look identical to me.

GX502 specs:

Type: 5-1/4" coaxial car audio loudspeaker

Peak power handling: 135W

Power handling, continuous average: 45W

Frequency response: 65Hz – 21kHz

Nominal impedance: 2.3 ohms

Sensitivity (2.83V/m): 91dB

GX528 specs:

5-1/4" coaxial car audio loudspeaker

Power Handling: 45 Wrms, 135W peak

Frequency Response: 65Hz – 21kHz

Impedance: 2.3 ohms

Sensitivity (@ 2.83V/m): 91dB
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