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NEW JBL 71124-01X 12" High-Power LF Driver

JBL ProfessionalPart # 294-4800
Model: 71124-01X

The 71124-01X 12" low frequency transducer represents the results of JBL's latest engineering research in high power transducer design.

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Estimated back in stock 4/30/2026
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Overview

JBL 71124-01X 12" High-Power LF Driver

The 71124-01X 12" low frequency transducer represents the results of JBL's latest engineering research in high power transducer design. For increased power handling while reducing power compression, a unique direct voice coil-to-air heat dissipation method called Vented Gap Cooling has been used. This process pumps air through the magnetic gap and directly over and around the voice coil to provide immediate heat transfer and reduction in operating temperature. Through the use of new computer-aided magnet optimization and analysis techniques comes a new weight-optimized Symmetrical Field Geometry (SFG) magnet structure, resulting in a reduction of overall driver weight and a significant reduction in harmonic distortion. This new magnet structure offers much of the weight advantage of rare earth magnet structures without their prohibitive cost.

Product Details

BrandJBL Professional
Model71124-01X
Part Number294-4800
UPC848864081540
Unit of MeasureEach
Weight9.75

Product Specifications

Nominal Diameter12"
Power Handling (RMS)600 Watts
Power Handling (MAX)1200 Watts
Impedance8Ω
Frequency Response45 to 3,500Hz
Sensitivity95dB 2.83V/1m
Voice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)52Hz
DC Resistance (Re)5.3Ω
Voice Coil Inductance (Le)1.5mH
Mechanical Q (Qms)4.5
Electromagnetic Q (Qes)0.34
Total Q (Qts)0.32
Compliance Equivalent Volume (Vas)2.2ft³
Maximum Linear Excursion (Xmax)7.5mm
Surface Area of Cone (Sd)546.45cm²

Materials of Construction

Cone MaterialPaper
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter12.25"
Baffle Cutout Diameter11"
Depth5"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume1ft³
Sealed F388.2Hz
Vented Volume2ft³
Vented F355.6Hz

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