JBL 3739 Dual-15 LF Bass Section Only (HPD3739) - Cinema ScreenArray
Share
- BASS CABINET ONLY - bottom dual-15 LF section (JBL 3739 / HPD3739) for 3722, 3722N, 3730 and 3732 ScreenArrays; the top HF or M/HF section is sold separately
- Brand new in original box
- Full Cinema manufacturer's warranty
- Free shipping in the continental US
In stock
- SKU
- HPD3739
. Description
JBL 3739 Dual-15 LF Bass Section (HPD3739) – Professional Low-Frequency Foundation Cabinet
The JBL 3739 is a purpose-built low-frequency bass cabinet engineered for controlled, efficient bass reproduction in professional installations where precision and output are non-negotiable. This component serves as the foundation of the JBL ScreenArray family, providing the tight, articulate low-end foundation that critical listening and playback environments demand.
Acoustic Performance
Dual M115-8A 15-inch woofers with 64 mm edgewound ribbon voice coils deliver a free-field sensitivity of 104 dB SPL at 2.83 V / 1 m, ensuring powerful low-end output without excessive amplifier demand. The cabinet is tuned for a 40 Hz to 2 kHz frequency response, integrating seamlessly with professional mid/high-frequency sections to create a cohesive, extended full-range system.
Electrical & Physical Specifications
The 3739 presents a 4 ohm nominal impedance (minimum 3.5 ohms at 195 Hz) and handles 500 W input power, with 600 W recommended amplifier rating. Connection is via rugged push-terminal binding posts, and the compact footprint of 883 × 762 × 450 mm (34.75 × 30 × 17.75 inches) allows integration into diverse studio, control-room, and monitoring installations.
Key Features
- Dual 15-inch (380 mm) woofers with 2.5-inch (64 mm) edgewound ribbon voice coils
- Mounted in JBL 4509 low-frequency enclosure
- Nominal impedance: 4 ohms (minimum 3.5 ohms at 195 Hz)
- 500 W input power handling; 600 W recommended amplifier
- Free-field sensitivity: 104 dB SPL (2.83 V / 1 m)
- Frequency response: 40 Hz – 2 kHz
- Dimensions: 883 × 762 × 450 mm (34.75 × 30 × 17.75 in)
- Push-terminal binding posts for secure connections
- Component bass cabinet only; requires separate HF or M/HF top section
- Compatible with JBL 3722, 3722N, 3730, and 3732 ScreenArray systems
- Harman Professional Cinema specification
- Limited Quantity availability
The 3739 delivers the controlled low-frequency foundation professional monitoring and playback systems demand—a pure bass cabinet with no compromises in efficiency or integration capability.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | Mexico |
Reviews
At a Glance
The JBL 3739 is a dedicated bass cabinet component for cinema and theater monitoring setups—a precision low-frequency section that pairs with JBL ScreenArray mid/high-frequency tops to build a full-range monitoring or reinforcement system. Studio professionals and engineers working on film-mix theater installations use it to anchor the low end with controlled, efficient bass reproduction (104 dB SPL) that integrates cleanly beneath high-frequency sections without muddying the mix. This is a specialized install component; it is not sold as a complete standalone speaker and requires a separate HF or M/HF cabinet and proper system design.
Who This Is For
Great for
- ✓ cinema sound
- ✓ theater installations
- ✓ large-venue reinforcement
- ✓ live performance
Not the best pick for
- – home audio
- – small rooms
- – portable applications
Skill level: Professional
Frequently Asked Questions
Is the JBL 3739 a complete loudspeaker or does it require additional components?
The 3739 is the bass section only and must be paired with a separate JBL ScreenArray mid/high-frequency top section (such as those on the 3722, 3722N, 3730, or 3732 models) to form a complete system. It has no mid or high-frequency drivers and cannot operate as a standalone speaker.
What amplifier power rating should I use with the 3739?
The cabinet is rated for 500 W input power, with a recommended amplifier rating of 600 W. It presents a 4 ohm nominal impedance (minimum 3.5 ohms at 195 Hz), so choose an amp and processor calibrated for those specs.
What venues or applications is the 3739 designed for?
The 3739 is engineered for cinema sound, theater installations, and large-venue reinforcement where precision low-frequency reproduction and efficient output are critical. It is not suitable for home audio, small rooms, or portable applications.
What is the frequency response of the 3739, and how does it integrate with a ScreenArray top section?
The 3739 is tuned to 40 Hz–2 kHz, providing a controlled bass foundation that integrates seamlessly beneath the mid/high-frequency response of compatible ScreenArray tops. Its crossover design ensures clean integration without overlap or gaps.
What are the physical dimensions, and does it fit in tight installation spaces?
The 3739 measures 883 × 762 × 450 mm (34.75 × 30 × 17.75 inches) and is designed to fit into compact theater and auditorium installations. Connection is via rugged push-terminal binding posts suitable for permanent theater and cinema wiring.
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 $86 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.
Compare With
Similar Gear
Complete the Rig
Gear that pairs well with this.
✨ For You
Based on what you've been looking at.