JBL
L300 Summit
Introduced 1974$1,800 MSRP
Flagship consumer version of the 4333 studio monitor, a 3-way 15-inch horn-loaded floorstander that topped the classic L-series line. Highly collectible with its 136A woofer, LE85 compression driver and 077 slot tweeter.
MSRP
$1,800
Used market · Very Good
$6,500
+261% vs MSRP
as of Aug 16, 2026MSRP to used market
From $1,800 at launch to $6,500 today.
Specifications
- Type
- 3-way horn-loaded floorstanding
- Drivers
- 15in 136A woofer, LE85 compression driver on HL91 horn lens, 077 ring-radiator tweeter
- Weight
- 128 lbs
- Dimensions
- 40.5 x 22.3 x 19.8 (each)"
- Impedance
- 8 Ω
- Sensitivity
- 93 dB
- Frequency response
- 35Hz-20kHz
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