Used JBL a Active crossovers for sale on + second hand hifi sites & shops. Use Hifi Shark to monitor pricing and global availability. I have found a jbl a crossover that is an improved version of the jbl , but the jbl a should be used with a woofer of 8 ohm instead. These were part of a speaker system that was installed in a church in the vaulted ceilings back in the 70’s. They were treated very well while they were.
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Then one day Steve Hall, who I jb, with my vintage tube repairs, came by for a visit. I chose to cut the corners back 2″ and replace all 16 corners rather than trying to build them up.
For additional information about the R-cube, contact Curt Fisher at sales audiocubics. These are a true Audiophile speaker with a unique retro look. Now, I needed Steve’s help with the science of cab volume and porting.
A round hole allowed me to be able to cover them with trim rings and screens to keep Rover from putting his bone in there and the creatures from reopening the hotel, plus safety of little children. This helped extend base response and gave the speakers height, putting the horn at the listener’s 310a. It was perfect for skimming and building up the surface back to square and flat.
Jbp be difficult to mod them.
JBL A, A Horn, A, J Driver, Low Frequency System Set Rare! | eBay
I decided to listen to them first. Sounds fairly straight forward if I can implement it correctly. It has the original 3 position, rotary dial for mid and high control and an added 3 position toggle switch for high frequency boost.
Because the amp hung down into the one speaker cab it was blacked out and there was no where for the light to escape. Giskard Thanks for the schematics Can you confirm that the A will provide 31100a equalization for the A horn? The boxes are about 15 cu ft each and tuned to 20 Hz. Then, the tricky part mbl with the lighting.
I emailed them pictures of the original vertical aligned face with its painted scribe. The inside tops were fitted with mirrored shelves and the speaker baffles and drivers were removed. Mine had been cut that week and had not been rolled up for more than four days. Skip to main content. My work was cut out for me. In the meantime, I gutted the cabs. Always check the postmark.
I did not change the settings on jlb preamp so I could have a point of reference on my initial listen. It works like a charm. Being an electronicc guru and very creative, he came up with the idea to make it an integrated amp.
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That was good for a few extra dB out of the fog horn on the top end. Results 1 to 11 of They are too big for my room and I will be selling these great speakers. There are 1 items available. The cosmetics of Steve’s ‘s were much nicer and I knew where they had been.
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They look like new, old stock. An extra piece of aluminum was cut to extend the main front panel. Paint color was going to be something that went well with the Mahogany stain. Extra Tabs by vBulletin Hispano. Hello Ted Take a look at the A network ubl.
Never believe the impedance label on an old JBL woofer. Delivery times may vary, especially during peak periods. Holes were drilled to mount the face to the inside panel.
Originally Posted by Baron Would this be useful? Watch list is full.
I had just done some work refinishing myrustic, Douglas fir floors upstairs in my house and had some expensive hardwood floor filler left. Can anyone give me advice on how to add passive equalization for the A CD horns?
The cabs were then sanded times and sealed with 3 coats of poly for a glass surface. The horns were painted copper and given custom mounts to jbp them in place. With three large sheets, I was able to match the grain from top to sides, and the sides on each speaker have the identical peak patterns. Where is this network circuit?