JBL 4739 Dual-15 LF Bass Section Only (HPD4739) – Cinema ScreenArray B

JBL 4739 Dual-15 LF Bass Section Only (HPD4739) — Cinema ScreenArray B-Stock

The JBL 4739 is a professional-grade low-frequency foundation designed for studio and installation work where controlled, articulate bass reproduction is non-negotiable. As a B-Stock unit, it carries the full manufacturer warranty and is fully functional—the result of open-box inventory or minor cosmetic handling. This listing covers the bass section only; it pairs with a matching mid/high-frequency top section to form a complete ScreenArray system suitable for control rooms, large mixing spaces, or mastering suites.

Driver Design & Acoustic Performance

The dual 265H-2 380 mm (15 in) Differential Drive woofers with edgewound ribbon voice coils deliver studio-grade precision, combining high sensitivity (104 dB SPL at 2.83 V / 1 m) with articulate low-end reproduction that translates across playback systems. The Differential Drive topology reduces distortion and increases power handling by mechanically isolating voice-coil motion, ensuring clean, detailed bass tracking and mixing that sits predictably in your productions.

System Integration & Physical Specifications

Housed in the 4509 LF enclosure, the 4739 presents a 4 ohm nominal impedance (3.3 ohms minimum at 230 Hz) and supports either 500 W (44.5 V) or 800 W (56.5 V) input depending on your amplifier. Its shallow profile—883 × 762 × 450 mm (34.75 × 30 × 17.75 in)—accommodates tight studio layouts and equipment racks, while push-terminal binding posts ensure reliable, professional wiring integration into your monitoring chain.

Key Features

• 2 × 265H-2 Differential Drive 15-inch woofers with edgewound ribbon voice coils
• 4739 model / HPD4739 Harman part number — cinema ScreenArray low-frequency section
• 4 ohm nominal impedance; 3.3 ohms minimum at 230 Hz
• 500 W (44.5 V) or 800 W (56.5 V) input power handling
• 104 dB SPL free-field sensitivity (2.83 V / 1 m)
• 4509 LF professional cinema enclosure
• Shallow 450 mm (17.75 in) depth for behind-screen installation
• Push-terminal binding posts for secure professional wiring
• B-Stock: fully functional with full manufacturer warranty
• Compatible with JBL 3732T, 3733, 4722, 4722N, 4732, and 4732T ScreenArray systems
• Designed for fixed cinema and high-SPL professional applications

The JBL 4739 delivers the controlled low-end extension and efficient output that precision mixing and mastering demand, backed by professional-grade construction and full warranty coverage for session-critical work.

As a B-Stock instrument it carries a minor cosmetic blemish with no effect on playability, tone or structure, which is why it sells for less than a first-quality unit. It is new, unplayed and covered by the full manufacturer warranty.