Manufacturer JBL

JBL 2265HPL 338343-003X 15" Neo Woofer SRX715 SRX725 VRX915

JBL 2265HPL 338343-003X 15" Neo Woofer SRX715 SRX725 VRX915 - Description

JBL's 2265HPL Differential Drive 15" woofer is a capable, durable, touring-quality PA speaker. Compared with traditional driver designs, JBL's patented Differential Drive employs a pair of inline voice coils in separate magnetic gaps instead of a single voice coil-gap configuration. Available space is more effectively utilized, and heat is removed from the motor structure more efficiently. Specifically, the voice coils are wound reversely and are immersed in magnetic fields of opposite polarity. This ensures reduced magnetic leakage flux and focuses more magnetic energy in the gaps where it is needed. The 2265HPL is used in JBL's SRX715, SRX725, and VRX915 speaker systems. Specifications: *Power handling: 750 watts RMS/1,500 watts continuous program *VCdia: 3" *Le: 1.7 mH *Impedance: 8 ohms *Re: 5.1 ohms *Fs: 37 Hz *SPL: 97 dB 1W/1m *Vas: 6.22 cu. ft. *Qms: 3.3 *Qes: 0.36 *Qts: 0.32 *Xmax: 8 mm *Dimensions: A: 15-1/8", B: 13-7/8", C: 8".

Tour-class woofer with patented motor design
Better heat dissipation increases power handling, reduces power compression
Reduced inductance extends upper response
Lightweight, compact neodymium magnet system
Push-pull operation lowers distortion
Magnetically shielded for use anywhere

Better heat dissipation

The physical separation of the two coils can be adjusted for optimum heat transfer from each coil to the outer structure of the driver. In addition, the total surface area of the two coils has doubled, creating twice the heat radiation capability. Nesting the small overall magnet structure in a large aluminum heat sink results in efficient dissipation of heat from the coils. Aluminum, with its low thermal resistance, is the ideal material for this.

Reduced inductance

The Differential Drive voice coil arrangement will have less effective inductance than the standard one, since the reversely wound coils will have negative mutual inductance between them. This translates into a more uniform impedance curve and extended output at higher frequencies.

Lightweight, compact motor

The compact nature of the Differential Drive motor structure requires much less iron in the magnetic return path. If NIB (neodymium-iron-boron) magnet material is used, a Differential Drive transducer can weigh as little as one-third the equivalent traditional ferrite design. This advantage shows up primarily in overall system weight and ease of installation.

Magnetically shielded

The structure is inherently shielded magnetically, especially at 90 degrees away from the axis of the structure. The result is very little stray magnetic field interference with CRT video systems.

Push-pull operation

In an analogy to Class AB operation of a power amplifier, the motion of a Differential Drive system reduces even-order distortion components, due to the exact symmetry of the motor structure along its operating axis.

List Price: $699.99

Price: $499.00

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