JBL 4739 Dual-15 LF Bass Section Only (HPD4739) - Cinema ScreenArray
Share
- Brand new in original box
- Full Cinema manufacturer's warranty
- Free shipping in the continental US
Out of stock
- SKU
- HPD4739
. Description
JBL 4739 Dual-15 LF Bass Section (HPD4739)
The JBL 4739 is the low-frequency foundation engineered for full-range studio monitoring and high-output recording applications. This dual-15 bass cabinet delivers the controlled, articulate bottom end required for accurate mix translation, critical listening, and stage-reinforcement work—a purpose-built component designed to integrate seamlessly with matching mid and high-frequency sections to create a complete monitoring 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 dynamic headroom needed for capturing and mixing demanding material while maintaining tight transient response and controlled cone movement—essential for revealing the true character of kick drums, bass guitar, and synth foundations in the mix.
Integration & Studio Workflow
A 4 ohm nominal impedance (minimum 3.3 ohms at 230 Hz) ensures compatibility with standard studio amplifier networks and monitor controller setups. Push-terminal binding posts allow reliable connection for session-critical work, while compact dimensions (883 × 762 × 450 mm) enable flexible placement in control rooms and live tracking spaces. 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 monitoring and mix accuracy in demanding recording and production environments.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | Mexico |
Reviews
At a Glance
The JBL 4739 is a professional dual-15 bass cabinet component for cinema-grade loudspeaker arrays—designed for system integration rather than standalone studio use. Its tight low end, extended 30 Hz response, and 104 dB sensitivity make it suitable for control-room monitoring or installation work that demands high-output, articulate bass, but it requires a matching mid/high-frequency section to create a complete loudspeaker. Consider this only if you are building a complete ScreenArray cinema system and need a dedicated bass foundation with cinema-spec clarity and minimal distortion under sustained load.
Who This Is For
| Best suited for | live performance, cinema sound, touring, high-output installation |
|---|---|
| Tonal character | Tight low end, extended bass response, controlled articulation, high output, cinema-grade clarity |
| Less specialized for | home recording, practice, intimate venues (it will do it; instruments voiced for that style do it more easily) |
| 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?
Sales tax is collected only on orders shipped to California; orders shipped to any other US state are not charged sales tax at checkout when you buy direct from our website. Marketplaces collect sales tax as the facilitator in most states, so the same listed price can cost more there. Buyers remain responsible for any use tax their state applies. Free US shipping and 30-day returns are included.
Compare With
Similar Gear
Complete the Rig
Gear that pairs well with this.
✨ For You
Based on what you've been looking at.