JBL ASB7128 Dual 18" Subwoofer
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- Brand new in original box
- Full JBL manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- ASB7128
. Description
JBL ASB7128 Dual 18" Subwoofer
The ASB7128 is a professional dual 18" subwoofer engineered for studio and control room applications where precise, extended low-frequency monitoring is essential. Built with JBL's proven professional-grade design and materials, this cabinet delivers the output and accuracy needed to hear every detail of your mix—from kick drum definition to synth bass articulation—without colored response or unwanted resonance.
Power & Monitoring Accuracy
Peak power handling reaches 16,000 W with a sustained 2400 W long-term rating over 100 hours, enabling this subwoofer to reproduce clean, tight lows at reference levels. The dual 2269H Ultra Long Excursion 18" woofers with 89 mm peak-to-peak maximum excursion deliver articulate bass reproduction across the critical mixing range—capturing nuance and punch without bloat or overhang in your tracking and mixing sessions.
Cabinet Engineering & Connectivity
The cabinet is engineered from 16 mm exterior grade 11-ply birch plywood with a durable DuraFlex™ black finish, reinforced by a 14-gauge perforated steel grille with acoustically transparent foam backing for reliable, consistent performance in studio environments. Professional-grade NL4 Neutrik Speakon® and covered barrier strip terminals (accepting up to 10 AWG wire or 9 mm spade lugs) integrate seamlessly with studio amplifiers and processor setups, while 16 suspension attachment points with M10 threaded hardware allow flexible mounting options for isolation and positioning.
Key Features
- 2x JBL 2269H Ultra Long Excursion 18" Differential Drive woofers with dual voice coils and dual gaps
- Neodymium magnet design with Vented Gap Cooling™ technology
- Peak-to-peak maximum excursion: 89 mm (3.5")
- Transducer Power Rating: 4000 W (16,000 W peak), 2 hrs
- Long-Term System Power Rating: 2400 W (9600 W peak), 100 hrs
- Maximum SPL: 135 dB-SPL continuous / 141 dB peak at 25 Hz – 200 Hz
- System Sensitivity: 99 dB-SPL, 1W @ 1m
- Frequency Range (-10 dB): 20 Hz – 1 kHz
- Impedance: 4 ohms parallel-drive mode or 2 x 8 ohms discrete-drive mode
- 16 mm exterior grade 11-ply birch plywood cabinet with DuraFlex™ finish
- 16-point suspension attachment with M10 threaded hardware (4 top, 4 bottom, 4 each side)
- Dimensions: 1092 x 560 x 815 mm (43.0 x 22.0 x 32.1 in vertical orientation)
The ASB7128 combines extended low-frequency reach with the accuracy and build quality demanded by serious recording and mixing engineers.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | Mexico |
Reviews
At a Glance
The JBL ASB7128 is a professional dual 18" subwoofer designed for large-scale installed systems and touring applications, not a studio mixing tool; it excels in live reinforcement environments where extended deep bass and high SPL output are required. With dual 89 mm excursion woofers, neodymium magnet design with cooling, and professional rigging/connectivity, it delivers frequency-accurate bass reproduction in venues and touring rigs. This is not suited for home recording or intimate studio tracking—it's purpose-built for reinforcement and permanent installation.
Who This Is For
Great for
- ✓ Live Performance
- ✓ Touring
- ✓ Large-Venue Reinforcement
- ✓ Festival Sound
Not the best pick for
- – Home Recording
- – Practice
- – Small Venue Gigging
Skill level: Professional
Frequently Asked Questions
What power handling does the ASB7128 support?
Peak power handling is 16,000 W with a sustained 2400 W long-term rating over 100 hours, enabling continuous output of 135 dB-SPL at 1 meter across the bass range.
What connectivity options does it have?
The subwoofer features NL4 Neutrik Speakon terminals and covered barrier strip connectors accepting up to 10 AWG wire or 9 mm spade lugs for flexible amplifier integration.
How is it built for touring and outdoor use?
The cabinet is constructed from 16 mm exterior-grade 11-ply birch plywood with DuraFlex black finish and a 14-gauge perforated steel grille; 16-point M10 suspension hardware supports secure rigging for transport and installation.
What frequency range does it cover?
The ASB7128 covers 20 Hz to 1 kHz (at -10 dB), with maximum SPL of 135 dB continuous and 141 dB peak at 25–200 Hz, delivering extended deep bass without sacrificing articulation.
Can it run in different impedance modes?
Yes; the dual voice coil design supports either 4 ohms in parallel-drive mode or 2 x 8 ohms in discrete-drive mode for flexible amplifier and system configuration.
Do I pay sales tax on this order?
We collect sales tax only on orders shipped to California. Orders shipped to any other US state are charged $0 sales tax at checkout when you buy direct from our website. On this item that is roughly $574 less out the door than the same listed price at a national retailer or on a marketplace. Marketplaces such as eBay, Reverb and Amazon collect sales tax in nearly every state as marketplace facilitators no matter who the seller is, so the same item at the same price costs less bought direct. Free US shipping and 30-day returns are included. Some states ask buyers to self-report use tax on out-of-state purchases.
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