JBL 2245 PDF

JBL 2245 PDF

JBL Incorporated, Balboa Boulevard, P.O. Box , Northridge, California U.S.A.. Technical Manual. JBLH. SPECIFICATIONS. Subwoofer JBL H. General specifications: diameter 18 inches, maximum power W. Thiele-Small parameters: frequency of self resonance Fs=20 Hz. Max Pwr. wRMS. Magnet Wt. 86 oz. Foam Surround Net Weight 22 lbs. Box 12cf, 44x29x21″ Box 23cf, 49x30x30″, Cone Sq.”;sq.M. Eff/Max SPL 95/.

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Always fun learning more Adjust your pampers accordingly. Your can also get an answer there. Volume Displaced by Driver when Mounted in Enclosure: The time now is After a jl 16 Hz undertone in an organ solo for several minutes, my bowels actually cut loose, and I am not prone to that.

Subwooffer with JBL H

It sure sounds great, though. JBL continually engages in research related to product improvement. Originally Posted by andychris. Subwooffer with JBL H.

Is there anybody who has built a big enclosure for a ? Results 1 to 15 of The JBL Model H is a professional quality low frequency transducer designed for use in custom studio monitors or other applications requiring high sensitivity and power capacity, as well as extremely low distortion and extended bass response. All times are GMT Acoustic loading shall further extend the low frequency response.


I think the Adcom stacks are to keep the subs from moving out. To achieve this performance, the H incorporates a new diecast aluminum frame, integrally stiffened cone with foam surround, mm 4 in diameter edgewound copper ribbon voice coil, and individually machined magnetic pole piece and back plate.

JBL 2245H 18 Inch Woofer Factory Reconed

I have enought wood to biuld a box of L inside. In addition, a Flux Stabilizing Ring encircling the pole piece shall act to reduce flux modulation. Components ubl H. Usable frequency response shall extend from 20 Hz to 2 kHz.

I haven’t yet heard Eminent Technologies fan type subwoofers, but they are very expensive and require an additional two add on rooms for cabinets.

Voice Coil Winding Depth: On-axis response, measured at a distance of 2 m 6. Now all I need is a handy closet!


For this reason, any current JBL product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated. The half-space reference efficiency shall be 2. The voice coil shall be mm 4 in in diameter and shall be made of edgewound copper ribbon operating in a magnetic field of not less than 1.

You should also glue every seam by reaching inside with an extension arm and turning the cabinets so the glue flows properly into the joints. As an indication of electromechanical conversion efficiency, the B1 factor shall be at least 21 newtons per ampere.


The frame shall be of cast aluminum to resist deformation, and the magnetic assembly shall utilize a ferrite magnet and produce a symmetrical magnetic field at the voice coil gap. Highest Recommended Crossover Frequency: The SFG design, in combination with a Flux Stabilizing Ring around the pole piece, significantly reduces second harmonic distortion and provides exceptionally accurate low frequency reproduction.

Originally Posted by Vottboy.

I am not joking, infrasound in large quantities can hurt you. Last edited by Lee in Montreal; at Originally Posted by audiomagnate.

Nominal impedance shall 2254 8 ohms. Continuous program power is defined as 3 jnl greater than continuous sine wave power and is a conservative expression of the transducer’s ability to handle typical speech and music program material.

Originally Posted by hjames. Page 1 of 2 1 2 Last Jump to page: A bigger box will get you lower also. Most of people build enclosures with JBL enclosure dimension bit is there sommeone that use bigger box? Additionally, the cone is coated with an exclusive damping formulation to ensure optimum mass and density. Measured sensitivity SPL at 1 m 3. The sensitivity rating of JBL low frequency loudspeakers is based on a signal swept from Hz to Hz.