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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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Adjust your pampers accordingly.

When you get 22245 cabinets, remove the stock boat anchor drivers and sell them on Ebay, tear out the wiring and replace with better stuff. Highest Recommended Crossover Frequency: 2254 1 to 15 of As an indication of electromechanical conversion efficiency, the B1 factor shall be at least 21 newtons per ampere. The SFG design, in combination with a Flux Stabilizing Ring around the 2425 piece, significantly reduces second harmonic distortion and provides exceptionally accurate low frequency reproduction.

Measured sensitivity SPL at 1 m 3. Is there anybody who has built a big enclosure for a ? He built 2 more later on and has 4 in that stack – but I can’t find a picture of his final config right now. Originally Posted by audiomagnate.

Subwooffer with JBL H

This motor assembly is optimally balanced with a 25 mm 1 in long voice coil and carefully engineered suspension elements to allow maximum excursion linearity with complete freedom from dynamic instabilities. On-axis response, measured at a distance of 2 m 6. Always fun learning more This of course uses the BX63 for really low eq. It sure sounds great, though.

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I have enought wood to biuld a box of L inside. Components – H. When you get the cabinets, remove the stock boat anchor drivers and sell them on Ebay 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.

A bigger box will get you lower also.

Page 1 of 2 1 2 Last Jump to page: JBL continually engages in research related to product improvement. 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. To achieve this performance, the H incorporates a new diecast aluminum frame, integrally stiffened cone with foam surround, mm 4 in diameter edgewound copper jnl voice coil, and individually machined magnetic pole piece and back plate.

JBL 2245H 18 Inch Woofer Factory Reconed

Acoustic loading shall further extend the low frequency response. 2254 best box is no box infinite baffle. Continuous program power is defined as 3 dB greater than continuous sine wave power and is a conservative expression of the transducer’s ability to handle typical speech and music program material.

After you are done, be careful that you don’t ruin your guts or make yourself permanently blind due to detached retinas.

New materials, production methods, and design refinements are introduced into existing products without notice as a routine expression of that philosophy. Your can also get an answer there.

I use a pair of ASH cabinets each with a H driver in them. Originally Posted by JeffW. Rated power capacity shall be at least W normal program material. The time now is Subwooffer with JBL H. At the bottom of the page, you can see a strip that says “similar threads”.

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The sensitivity rating of JBL low frequency loudspeakers is based on a signal swept from Hz to Hz. Originally Posted by hjames. Originally Posted by quindecima. Performance specifications of a typical production unit shall be as follows: Voice Coil Winding Depth: For this reason, any current JBL product may differ in some respect from its published description, but will always equal or kbl the original design specifications unless otherwise stated.

Volume Displaced by Driver when Mounted in Enclosure: After a prolonged 16 Hz undertone jbll an organ solo for several minutes, my bowels actually cut loose, and I am not prone to that. The frame shall jnl 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. Originally Posted by andychris. Maximum Excursion Before Damage: Additionally, the cone is coated with an exclusive damping formulation to ensure optimum mass and density.

I am not joking, infrasound in large quantities can hurt you. Or, so what my friend Steve did – build the box I think the Adcom stacks are to keep the subs from moving out. Extra Tabs by vBulletin Hispano.