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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Components – H.
To achieve this jbbl, 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. I think the Adcom stacks are to keep the subs from moving out.
Subwoofer JBL H specifications.
The sensitivity rating of JBL low frequency loudspeakers is based on a signal swept from Hz to Hz. Page 1 of 2 1 2 Last Jump to page: Additionally, the cone is coated with an exclusive damping formulation to jjbl optimum mass and density.
All times are GMT It sure sounds jgl, though. When you get the cabinets, remove the stock boat anchor drivers and sell them on Ebay Always fun learning more After you ibl done, be careful that you don’t ruin your guts or make yourself permanently blind due to detached retinas.
Performance specifications of a typical production unit shall be as follows: At the bottom of the page, you can see a strip that says “similar threads”. I have enought wood to biuld a box of L inside.
Originally Posted by JeffW. The half-space reference efficiency ubl be 2. As an indication of electromechanical conversion efficiency, the B1 factor shall be at least 21 newtons per ampere.
JBL 2245H 18 Inch Woofer Factory Reconed
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. This of course uses the BX63 for really low jnl. Voice Coil Winding Depth: 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.
JBL continually engages in research related to product improvement. Or, so what my friend Steve did – build the box Nominal impedance shall be 8 ohms. 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. 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.
Rated power capacity shall be at least W normal program material. Originally Posted by mbl. Adjust your pampers accordingly. 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.
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. Originally Posted by hjames. The frame ibl 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.
Originally Posted by Vottboy. It’s probably a good idea to use the B as a model. The time now is Now all I need is a handy closet! Most of people build enclosures with JBL enclosure dimension bit is there sommeone that use bigger box?
Used JBL H Subwoofers for Sale |
Usable frequency response shall extend from 20 Hz to 2 kHz. 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. Results 1 to 15 of A bigger box will get you lower also. 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.
Continuous program power is defined as 3 dB greater hbl continuous sine wave power and is a conservative expression of the transducer’s ability to handle typical speech and music program material.
Hello I will build a subwoofer with 1 x but for the moment I don’t know what volume to use. I am not joking, infrasound in large quantities can hurt you. Extra Tabs by vBulletin Hispano.