JBL P3365MX 15" Powered Flyable Subwoofer – SRX900 Series

Product Overview

The JBL P3365MX is a 15" powered flyable subwoofer in the JBL SRX900 Series, designed for live sound reinforcement, touring, rental, and fixed installation applications that demand scalable low-frequency performance in a compact, truck-pack-friendly format. Powered by an integrated 1100W RMS Class-D amplifier and driven by JBL's 2276H 15" Differential Drive® woofer, the P3365MX delivers up to 130 dB peak SPL with a frequency range extending to 36 Hz (-10 dB). Its built-in DSP engine — featuring 24 adjustable filters, FIR correction, and up to 2000 ms of delay — plus HARMAN HControl Ethernet connectivity make it an appropriate choice for AV system designers and rental operators specifying a professional powered subwoofer for mid-to-large-format sound systems.

Product Description

The JBL P3365MX brings together the transducer technology, amplification, and DSP architecture from JBL's SRX900 Series into a single-box 15" powered subwoofer optimized for flyable configurations. At its core is the JBL 2276H 15" Differential Drive® woofer — a dual voice coil, dual gap design that improves heat dissipation, reduces power compression, and extends dynamic range compared to conventional single-coil woofer designs. This driver is loaded into a bass-reflex enclosure with a large-format port designed to minimize turbulence and port noise even at sustained high output levels.

The passively cooled Class-D amplifier delivers 1100W RMS (2500W peak), achieving 130 dB peak SPL with high efficiency and minimal thermal buildup. The integrated DSP provides 24 user-adjustable parametric filters, FIR-based throw-distance correction, array size compensation, and up to 2000 ms of programmable delay for time-alignment in complex system configurations. LevelMax limiting uses transducer excursion-control algorithms to protect the woofer during peak demand without hard clipping, maintaining consistent output characteristics under load.

System control is accessible via the rear-panel LCD for direct on-site adjustment, or remotely through dual Neutrik etherCON connections using HARMAN's HControl Ethernet protocol — compatible with AMX, Q-SYS, and custom control systems via available plugins. The M20 threaded pole mount enables stacking with SRX900 Series full-range loudspeakers, while the integrated three-point rigging system supports flown configurations. The reinforced plywood enclosure with perforated grille and ergonomic side handles is built to touring-grade standards. The P3365MX supports omnidirectional or cardioid array configurations, providing directional low-frequency control for installations and events requiring front-to-back bass pattern management.

Key Features

• JBL 2276H 15" Differential Drive® Woofer — Dual voice coil, dual gap transducer design provides superior heat dissipation, lower power compression, and extended dynamic range versus conventional single-coil designs.
• 1100W RMS / 2500W Peak Class-D Amplifier — Passively cooled Class-D amplification eliminates fan noise, reduces weight, and delivers consistent output across a universal 100–240V power range.
• 130 dB Peak SPL — Commercial-grade output performance for mid-to-large venues, outdoor events, and high-SPL fixed installations.
• Advanced DSP Engine — 24 user-adjustable parametric filters, FIR-based throw-distance correction, array size compensation, and up to 2000 ms of delay for precise time-alignment and system optimization.
• LevelMax Limiting — Excursion-based transducer protection maintains consistent output and prevents driver damage during peak demand without audible hard-limiting artifacts.
• Flyable Three-Point Rigging System — Integrated rigging hardware supports flown configurations for permanent installations and touring rigging scenarios.
• M20 Threaded Pole Mount — Top-of-cabinet pole socket enables ground-stacking with SRX900 Series full-range loudspeakers as a complete system.
• HARMAN HControl Ethernet — Dual Neutrik etherCON ports enable remote system monitoring, preset recall, and parameter adjustment via network control systems including Q-SYS and AMX.
• Rear-Panel LCD Control — Direct access to presets, DSP parameters, and system status without a laptop or external controller during setup and event operation.
• Omnidirectional or Cardioid Array Support — Compatible with cardioid subwoofer array configurations for directional low-frequency control and stage wash reduction.
• Truck-Pack Friendly Enclosure — Reinforced plywood construction with perforated grille and ergonomic side handles optimized for efficient transport and stacking in rental and touring inventory.
• Universal Power Supply — Operates on 100–240V AC, 50/60 Hz with powerCON TRUE1 input and output connectors for power looping between cabinets.

Typical Applications

• Auditorium
• House of worship
• Multi-purpose room
• All-hands room
• Commercial meeting space
• Government space
• Broadcast studio

Technical Specifications

Frequently Asked Questions

What full-range loudspeakers is the P3365MX compatible with?
The P3365MX is designed for use with all SRX900 Series full-range models, including the SRX906LA, SRX910LA, SRX915SF, and SRX918SF. The integrated DSP includes array size compensation and FIR-based correction optimized for these pairings. The M20 pole mount accepts SRX900 full-range cabinets directly for ground-stack configurations.

How is the P3365MX controlled remotely?
The P3365MX supports HARMAN's HControl Ethernet protocol via dual Neutrik etherCON ports. Compatible control platforms include JBL Performance Software (Windows, macOS, iPadOS), AMX via the SRX900 Module, and Q-SYS via the SRX900 Plugin (version 1.2.0.0 or later). Direct rear-panel LCD control is also available for on-site access without network connectivity.

Can the P3365MX be flown in a permanent installation?
Yes. The P3365MX includes an integrated three-point rigging system for flown configurations. Refer to the SRX900PS Rigging Manual (version A) for certified rigging procedures, weight ratings, and hardware specifications. Rigging should only be performed by qualified personnel following applicable local safety standards.

What is the difference between the P3365MX and the SRX918S?
The P3365MX uses a 15" driver and produces 130 dB peak SPL at 87 lb, while the SRX918S uses an 18" driver producing 134 dB peak SPL at 98 lb. The P3365MX is better suited for applications requiring a lighter, more portable cabinet with slightly less LF extension. Both share the same amplifier power class and DSP architecture.

Does the P3365MX support cardioid subwoofer arrays?
Yes. The P3365MX can be configured in cardioid arrays using DSP delay and polarity settings, reducing low-frequency energy behind the stack and on stage. JBL's Performance Software and EASE GLL simulation files support cardioid configuration modeling during system design.

What power connection does the P3365MX use?
The P3365MX uses Neutrik powerCON TRUE1 connectors for both power input and power output, allowing daisy-chain power distribution between cabinets. It accepts 100–240V AC, 50/60 Hz, making it compatible with North American and international power infrastructure.

Is firmware upgradeable in the field?
Yes. JBL releases firmware updates for the SRX900 Series periodically. The current firmware changelog is available on the JBL Professional website. Updates are applied via the Performance Software over the Ethernet connection.

What is the warranty on the JBL P3365MX?
The P3365MX carries HARMAN's standard warranty for JBL Professional products. Visit the HARMAN service portal to register your product and access current warranty coverage terms for your region.