JBL ASB7128 Ultra Long Excursion Dual 18 in. Subwoofer (Black)
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Description
The JBL ASB7128 is a high-power subwoofer from JBL's AE Application Engineered Series, with two 18 in. 2269H Ultra Long Excursion Differential Drive woofers. Each driver has a neodymium magnet, dual voice coils, dual gaps, JBL's Vented Gap Cooling and a composite cone, and reaches 89 mm (3.5 in.) of peak-to-peak excursion. It can be ground-stacked or flown, alone or with other AE Series models, in performing arts facilities, theatres, auditoriums, houses of worship, live and dance clubs, sports facilities and themed entertainment venues.
A switch sets the two drivers for parallel or discrete inputs. The front-loaded, vented cabinet is 11-ply birch plywood in JBL's DuraFlex finish, braced for low-frequency output, with sixteen M10 suspension points and a foam-lined 14-gauge steel grille. This is the black version.
Features
- Two 2269H 18 in. Ultra Long Excursion Differential Drive woofers with dual 4 in. voice coils, dual gaps and neodymium magnets
- Vented Gap Cooling and 89 mm (3.5 in.) peak-to-peak maximum excursion per driver
- 4000 W continuous pink noise, 16000 W peak power handling
- Switchable parallel or discrete input mode
- For ground-stacked or suspended use, alone or with other AE Series models
- 16 M10 suspension points
Specifications
- Version: Standard
- Color: Black
- Frequency Range (-10 dB): 20 Hz to 1 kHz
- Frequency Response (±3 dB): 25 Hz to 1 kHz
- Input Modes: Drivers parallel or discrete, switchable
- Power Rating: 4000 W (16000 W peak) for 2 hours
- Long-Term System Power Rating: 2400 W (9600 W peak) for 100 hours
- Maximum SPL (1 m): 135 dB continuous (141 dB peak), 25 Hz to 200 Hz
- Sensitivity: 99 dB SPL, 1 W (2.0 V) at 1 m, 25 Hz to 200 Hz, half-space
- Nominal Impedance: 4 ohms in parallel mode, 2 x 8 ohms in discrete mode
- Low-Frequency Drivers: 2 x JBL 2269H, 460 mm (18 in.), 100 mm (4 in.) dual coil, dual gap, neodymium Differential Drive with Vented Gap Cooling
- Enclosure: Rectangular, 16 mm (5/8 in.) exterior-grade 11-ply birch plywood
- Finish: Black DuraFlex
- Grille: Powder-coated 14-gauge perforated steel with acoustically transparent foam backing
- Suspension: 16 M10 threaded points (4 top, 4 bottom, 4 each side)
- Input Connectors: Neutrik Speakon NL4 and covered barrier strip terminals wired in parallel for loop-through; the barrier strip takes up to 5.2 sq mm (10 AWG) wire or 9 mm (.375 in.) spade lugs
- Environmental: Mil-Std 810; IP-x3 per IEC 529
- Dimensions (H x W x D, vertical): 1092 x 560 x 815 mm (43.0 x 22.0 x 32.1 in.)
- Net Weight: 71.9 kg (158.5 lb)
- Optional Accessories: M10 x 35 mm forged shoulder eyebolts with washers