JBL Concert A704 – 360W 4-Channel Class AB Amplifier (Speakers/Sub)
Compact Class AB 4-channel power: 70W×4 @4Ω, 90W×4 @2Ω, or 180W×2 bridged, with selectable HP/LP/Full crossovers (40–400 Hz). Clean, reliable JBL muscle for front/rear or front + sub builds. Buy now and give your system a clear, dynamic lift.
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JBL Concert A652 – 170W 2-Channel Class AB Amplifier (Speakers/Sub)
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The JBL Stage3 527F is a factory-friendly 5.25" coaxial that drops straight into OEM openings and wakes up your system with bigger mid-bass and smooth highs. JBL’s Plus One™ polypropylene woofer cone maximizes cone area for better efficiency, while the 3-ohm voice coil and 91 dB sensitivity help you get strong output even from a stock head unit. Purpose-built for factory upgrade without grille, the 527F hides neatly behind door panels for a clean, original look. Order now and enjoy the unmistakable JBL lift on every drive.
Key features
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5.25" 2-way coaxial factory-upgrade design (no grilles) for easy OEM fit.
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Plus One™ polypropylene woofer cone for higher efficiency and punchy bass.
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High sensitivity (91 dB) & 3 Ω nominal impedance—great with factory power, scales with amps.
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Frequency response 75 Hz–20 kHz for clear, balanced sound across genres.
Technical specifications
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Size: 5.25" (130 mm)
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Design: 2-way coaxial
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Power handling: 40 W RMS / 200 W peak (RMS consistent; peak rating varies by region 120–200 W—JBL CA lists 200 W).
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Sensitivity (@2.83 V/1 m): 91 dB
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Frequency response: 75 Hz – 20 kHz
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Nominal impedance: 3 Ω
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Top-mount depth (approx.): 1.77" (45 mm)Grilles: Not included (factory-fit friendly)
What’s in the box
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2 × Speakers
(Stage3 “F” variants ship without grilles; mounting hardware may vary by region/retailer.)
Fitment notes
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Designed for standard 5.25" OEM locations; verify cutout and ~45 mm top-mount depth
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.Works well on factory head units; an external amp can further improve dynamics.
