JBL 4739 Dual-15 LF Bass Section Only (HPD4739) - Cinema ScreenArray
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- Brand new in original box
- Full Cinema manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- HPD4739
. Description
JBL 4739 Dual-15 LF Bass Section (HPD4739)
The JBL 4739 is the low-frequency foundation of the JBL ScreenArray cinema loudspeaker systems. This dual-15 bass cabinet delivers the muscular bottom end required for theatrical, live sound, and high-output installation work—a purpose-built component designed to integrate seamlessly with matching mid and high-frequency sections to create a complete cinema-grade speaker array.
Low-Frequency Performance
Dual 265H-2 differential-drive woofers with edgewound ribbon voice coils operate in a tuned 4509 LF enclosure, producing a sensitivity of 104 dB SPL (2.83 V / 1 m) with extended bass response down to 30 Hz. This cabinet handles 500 W at 44.5 V or 800 W at 56.5 V, providing the headroom needed for demanding cinema and touring applications without compromising transient clarity or cone excursion.
Integration & Installation
A 4 ohm nominal impedance (minimum 3.3 ohms at 230 Hz) ensures compatibility with standard cinema and live-sound amplifier networks. Push-terminal binding posts allow quick connection, while compact dimensions (883 × 762 × 450 mm) enable stacking or integration into larger arrays without excessive footprint demands. This component is designed exclusively as the bass section of JBL ScreenArray systems (3732T, 3733, 4722, 4722N, 4732, 4732T)—a dedicated M/HF or HF top section must be purchased separately.
Key Features
- 2 × 265H-2 380 mm (15 in) differential-drive woofers with edgewound ribbon voice coils
- 4509 LF enclosure tuned for extended bass response
- Nominal impedance 4 ohms, minimum 3.3 ohms at 230 Hz
- Input power handling 500 W (44.5 V) / 800 W (56.5 V)
- Free-field sensitivity 104 dB SPL (2.83 V / 1 m)
- Frequency response 40 Hz–1.2 kHz (±3 dB)
- Crossover frequency 1.2 kHz
- Push-terminal binding posts for secure connection
- Dimensions 883 × 762 × 450 mm (34.75 × 30 × 17.75 in)
- Cinema-grade component for ScreenArray system integration
The 4739 delivers the controlled, articulate bass foundation that defines professional cinema and touring loudspeaker arrays.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | Mexico |
Reviews
At a Glance
The JBL 4739 is a dual-15 low-frequency bass section designed exclusively as a component of JBL ScreenArray cinema loudspeaker systems—it is not a standalone speaker and requires a separate mid/high-frequency top section to function. Built for touring, cinema, and high-output installations, it delivers tight, articulate bass down to 30 Hz with 104 dB sensitivity and handles up to 800 W, making it the muscular foundation for venues and touring rigs that demand cinema-grade clarity and headroom. Choose this if you're assembling a complete ScreenArray system (3732T, 3733, 4722, 4732, or 4732T) and need a proven, road-tested bass component with the transient control and output necessary for large-scale live sound and theatrical applications.
Who This Is For
Great for
- ✓ live performance
- ✓ cinema sound
- ✓ touring
- ✓ high-output installation
Not the best pick for
- – home recording
- – practice
- – intimate venues
Skill level: Professional
Frequently Asked Questions
Is this a complete loudspeaker I can use on its own?
No. The JBL 4739 is the bass section only and must be paired with a matching M/HF or HF top section from the ScreenArray family (sold separately) to create a functional loudspeaker system. It is designed exclusively for integration into ScreenArray systems (3732T, 3733, 4722, 4722N, 4732, or 4732T).
What are the bass specifications and output?
The 4739 features two 265H-2 differential-drive 15-inch woofers in a tuned 4509 LF enclosure, delivering 104 dB SPL sensitivity with extended bass response down to 30 Hz. It handles 500 W at 44.5 V or 800 W at 56.5 V and operates at a nominal 4-ohm impedance.
What size is it and how does it install?
Dimensions are 883 × 762 × 450 mm (34.75 × 30 × 17.75 inches), making it compact enough to stack or integrate into larger arrays. It features push-terminal binding posts for secure connection and is designed for quick setup in cinema and touring installations.
What is this bass section best suited for?
The 4739 is built for live performance, cinema sound, touring, and high-output installations where articulate, extended bass and high sensitivity are required. It is not intended for home recording, practice, or intimate venues.
How does it compare to other cinema bass components?
The JBL 4739 competes directly with cinema and touring bass sections like the QSC KW181, Electro-Voice SB3000, and L-Acoustics SB28, offering cinema-grade clarity, controlled articulation, and the extended low end needed for theatrical and large-venue applications.
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 $118 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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