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NEW Beyma 15QLEX1600Fe QLEX Series 15" Subwoofer 8 Ohm

BeymaPart # 253-054
Model: 15QLEX1600FE

The Beyma 15QLEX1600Fe is a 15" high‑output subwoofer built for demanding professional audio systems where deep bass, high sensitivity, and low distortion are required. It combines advanced motor technology and thermal management to maintain performance under heavy load.

Key Features

  • 4" QUATTRO in/out copper voice coil maximizes motor strength and cooling
  • Maltcross® passive cooling system minimizes thermal compression for long sessions
  • ±13 mm Xmax and 60 mm peak‑to‑peak excursion support serious bass travel
  • Weather‑treated cone on both sides ensures durability in varied environments
  • FEA‑optimized ceramic magnet structure and aluminum demodulating ring for ultra‑low distortion
  • Optimized for direct‑radiation or band‑pass subwoofer enclosures
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See all items in Subwoofer Drivers
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Overview

Beyma 15QLEX1600Fe QLEX Series 15" Subwoofer 8 Ohm

15QLEX1600Fe QLEX Series 15" Subwoofer 8 Ohm

With its 1,600 W AES rating and high 96 dB sensitivity, the 15QLEX1600Fe delivers substantial bass output without requiring overly large amplifier power. The specially designed 4" QUATTRO voice coil and Maltcross® cooling system manage heat efficiently, keeping performance stable even during extended use. The driver’s ±13 mm linear excursion (and 60 mm peak to peak) gives it the physical headroom to reproduce deep bass passages cleanly. A weather-treated cone and rugged motor structure, including an aluminum demodulating ring that helps reduce distortion, contribute to consistent fidelity and durability in professional audio systems. This model is specifically optimized for use in direct-radiating or band-pass subwoofer enclosures, making it a strong choice for high-output PA applications.

Solid Line: On Axis
Dotted Line: 45º Off Axis

At Beyma, the challenge of heat dissipation is met with a clear objective: ensuring our speakers consistently deliver optimal performance within the system, maximizing total sound pressure level (SPL) and maintaining stability.

It's widely recognized that a system's overall SPL decreases over time due to power compression effects in the speakers. Typically, larger voice coil diameters correlate with higher power capacity; however, this also necessitates bigger motor structures to achieve high total output from the transducer.

Beyma's Maltcross cooling technology presents multiple solutions to achieve this goal. It enables the woofer to handle higher power levels with a given coil diameter, allowing for designs with smaller coils and motor structures. This reduction in size decreases weight, increases sensitivity, and maintains adequate power handling for specific applications, resulting in a total SPL comparable to that of drivers with larger motor structures.

Maltcross technology incorporates a forced convection circuit within the driver's core, effectively lowering the coil's operating temperature. Additionally, it functions as a demodulation ring, linearizing the transducer's inductance.

Product Details

BrandBeyma
Model15QLEX1600FE
Part Number253-054
UPC8435469043855
Unit of MeasureEach
Weight33.35

Product Specifications

Nominal Diameter15"
Bolt Circle Diameter14.7
Power Handling (RMS)1600 Watts
Power Handling (MAX)3200 Watts
Impedance8Ω
Frequency Response35 to 1000Hz
Sensitivity96dB 2.83V/1m
Voice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)33Hz
DC Resistance (Re)5.3Ω
Voice Coil Inductance (Le)3.7mH
Mechanical Q (Qms)6.3
Electromagnetic Q (Qes)0.22
Total Q (Qts)0.21
Compliance Equivalent Volume (Vas)3.6ft³
Mechanical Compliance of Suspension (Cms)93mm/N
BL Product (BL)35.6T·m
Diaphragm Mass Inc. Airload (Mms)0.254g
Maximum Linear Excursion (Xmax)13mm
Surface Area of Cone (Sd)0.088cm²

Materials of Construction

Cone MaterialTreated Paper
Voice Coil Wire MaterialCopper
Basket / Frame MaterialCast Aluminum

Mounting Information

Overall Outside Diameter15.5"
Baffle Cutout Diameter13.9"
Depth7.5"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.22ft³
Sealed F3132Hz
Vented Volume0.47ft³
Vented F384.07Hz

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