Subwoofer JBL H. General specifications: diameter 18 inches, maximum power W. Thiele-Small parameters: frequency of self resonance Fs=20 Hz. JBL Incorporated, Balboa Boulevard, P.O. Box , Northridge, California U.S.A.. Technical Manual. JBLH. SPECIFICATIONS. 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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In addition, a Flux Stabilizing Ring encircling the pole piece shall act to reduce flux modulation. Measured sensitivity SPL at 1 m 3.
Subwoofer JBL H specifications.
I think the Adcom stacks are to keep the subs from moving out. 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.
The sensitivity rating of JBL low frequency loudspeakers is based on a signal swept from Hz to Hz. Performance specifications of a typical production unit shall be as follows: Most of people build enclosures with JBL enclosure dimension bit is there sommeone that use bigger box?
Volume Displaced by Driver when Mounted in Enclosure: Is there anybody who has built a big enclosure for a ? When you get the cabinets, remove the stock boat anchor drivers and sell them on Ebay, tear out the wiring and replace with better stuff.
Rated power capacity shall be at least W normal program material.
Voice Coil Winding Depth: I use a pair 2245g ASH cabinets each with a H driver in them. Additionally, the cone is coated with an exclusive damping formulation to ensure optimum mass and density. Last edited by Lee in Montreal; at 22445h 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.
The best box is no box jbk baffle. 2245h half-space reference efficiency shall be 2. Continuous program power is defined as 3 dB greater than continuous sine jjbl power and is a conservative expression of the transducer’s ability to handle typical speech and music program material.
Page 1 of 2 1 2 Last Jump to page: Maximum Excursion Before Damage: 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. Highest Recommended Crossover Frequency: Nominal impedance shall be 8 ohms. Usable frequency response shall extend from 20 Hz to 2 kHz.
A bigger box will get you lower also. 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.
Originally Posted by andychris.
JBL H 18 Inch Woofer Factory Reconed | eBay
Originally Posted by Vottboy. As an indication of electromechanical conversion efficiency, the B1 factor shall be at least 21 newtons per ampere. Originally Posted by hjames. Now all I need is a handy closet! This motor assembly is optimally balanced 22455h a 25 mm 1 in long voice coil and carefully engineered suspension elements to allow maximum excursion linearity with complete freedom from dynamic instabilities. Originally Posted by JeffW.
After a prolonged 16 Hz undertone in an organ solo for several minutes, my bowels actually cut loose, and I am not prone to that. I am not joking, infrasound in large quantities can hurt you. I have enought wood to biuld a box of L inside.
All times are GMT It’s probably a good idea to use the B as a model. Other loudspeakers will be considered for equivalency provided that submitted data from a recognized independent test laboratory verify that the above performance specifications are met. Adjust your pampers accordingly. Acoustic loading shall further extend 2254h low frequency response. Results 1 to 15 of 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 2245hh otherwise stated.
Always fun learning more Components – H.
JBL continually engages in research related to product improvement. 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.
JBL 2245H Aftermarket Recone Kit
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. Originally Posted by quindecima. Your can also get an answer there. Jvl of course uses the BX63 for really low eq. The time now is New materials, production methods, and design refinements are introduced into existing products without notice as a routine expression of that philosophy.