Jbl 2235h Vintage Professional Series 15 Inch Bass Driver
Up for auction out of Deiter's Closet - 1 JBL 2235H Professional Series 15 inch bass driver. This driver was refoamed and never used other than to test it, it has been sitting on a shelf in my closet ever since. This is an excellent and rare 15 inch speaker.
Check my feedback rating and buy with confidence, 7 day auction, no reserve. Thanks for looking!
Please see below for specs:
The JBL Model 2235H represents the latest developments in low frequency loudspeaker technology. It combines smooth response, extended low frequency bandwidth, and extremely low distortion, making it ideal for custom studio monitors and other critical applications requiring an optimum balance of efficiency and bass response.
The 2235H has a low-loss magnetic structure that weighs 8.5 kg (18 5/8 lb) and incorporates JBL's unique Symmetrical Field Geometry (SFG). This design, in combination with the aluminum Flux Stabilizing Ring around the pole piece, reduces second harmonic distortion to inconsequential levels. The 100 mm (4in) diameter voice coil benefits from new adhesive technology and optimized coil-former construction of aluminum, plastic and high temperature paper for increased power capacity. The 19 mm (3/4 in) length of the voice coil allows increased linear excursion capability and the extension of usable frequency response to 20 Hz in equalized alignments and subwoofer applications. Careful choice of suspension elements, taking into account their interaction with the voice coil motion, results in a driver with tight, controlled transient response and complete freedom from dynamic instabilities.
Sensitivity: (The sensitivity rating of JBL low frequency loudspeakers is based on a signal Swept from 100Hz to 500 Hz, rather than the conventional 1 kHz single frequency test signal since these drivers are usually used below 800 Hz Therefore, usable sensitivity of the 2202H may be substantially greater than that of loudspeakers with higher published ratings The half-space reference efficiency percentages will give a consistent method for comparison of E series, Professional Series, and competitive loudspeakers in low-frequency applications.)93 dB SPL, 1 W. 1 mFrequency Range: 20 Hz to 2 kHzHighest Recommended Crossover Frequency:1000 HzRecommended Enclosure Volume:85-285 L (3-10 ft3)Effective Piston Diameter:337 mm ( 13 1/4 in)Maximum Excursion Before Damage:22 mm (7/8 in peak to peak)Minimum Impedance:7.0 ohms ± 10% @ 25°CVoice Coil Diameter:100 mm (4 in)Voice Coil Material:Edgewound copper ribbonVoice Coil Winding Depth:191 mm (3/4 in)Magnetic Gap Depth:7.1 mm (0.28 in)Magnetic Assembly Weight:8.5kgFlux Density:1.2 T ( 12,000 gauss)Bl Factor: 20.5 N/AEffective Moving Mass:
0.155 kg Positive voltage on black terminal gives forward diaphragm motion.
Depth:137 mm (5 1/2 in)Net Weight:10.1 kg (22 1/4 lb)Shipping Weight:11.2 kg (24 3/4 lb)