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Can you show us front and back and side pics of the woofers plus any markings on them? Also show a closeup side photo to suggest how high or low the cone is relative to the frame or surround. If the voice coil is dragging because of overheating and / or bubbling of the wire insulation, then...

RIP Dave, hail fellow, well met!

Well, there was this thread where @faber12 was able to contact friend Bethany on FB and she gave an update. The thread is closed but is a good read and partial update. Pm me if needed. https://audiokarma.org/forums/index.php?threads/wondering-about-sandy-g.1000728/page-4#post-15720843

Any updates about Unca @Sandy G?

RIP Monty, gone way too soon.

Congrats to both @Mystic and @hjames, both stalwarts and best of AK! I’ve been away for some time (just lots of other stuff going on, so catching up), came across this MOTY thread, and happy to see the results. Also blushing a bit to find someone nominated me again, many thanks.

I’m in. Send me info via pm.

Give Edgewound (Ken Haerr) a call at Upland Loudspeaker in SoCal. He might be able to help you repair this or point in a direction for a suitable replacement diaphragm if the dimensions are known.

IMO, because the 4430 was designed in the mid-80’s they are really designed around big transistor power, at least for the low end. They also benefit from biamping, and here you can a run big, high damping amp which will really take hold of the 2235H and make it sing, plus you can use your tube...

If the original plastic post had broken off in the cabinet, drill a pilot hole and use a screw to bit and pull or use an easy out or an Alden Grab-It to back it out. Once removed or missing, clean the hole but do not bore or enlarge it out further. You can find original used JBL grille...

You can see some of what I’ve owned and / or still have in use or in storage. Slowly have sold off some of the smaller midsize speakers to fund car and steel bicycles hobby. But here’s a fun JBL family gathering photo of a few 15” and 12” relatives:

Ken Haerr (edgewound) at Upland Loudspeaker in SoCal can do the 035Ti (and all JBL titanium tweeter foam and general refurbishment. He has the materials and processes down so although not inexpensive, it restores the tweeters to a much more listenable state. If it’s still a problem after...

Swap the woofers from one cabinet to the other. If the low output moves with the woofer, its the woofer. If the low output stays with the cabinet, then its any electrical contact, L-Pad (although they primarily regulate the midrange and tweeter), or wiring. Since the woofers run full range...

Your L150A-B's look super, glad you got them in such good cosmetic condition. Consider getting some DeOxit D5 spray for the midrange and tweeter controls - search this forum on how to access the L-pad controls and how to clean / deoxidize them with the DeOxit. That will help remove any oxide...

Super sweet setup!! Let us know how it sounds. New flooring? Been there, done that, DIY myself entire first floor back in 2005. Late 2020 had a bad leak around the fireplace, caused flooring damage in family room, luckily insurance paid to redo it all.

Here's the 16.5 rebuild thread: https://audiokarma.org/forums/index.php?threads/concept-16-5-restoration-et-al.989585/

Strongly (double entendre here) recommend leather work gloves for moving the receiver and a very strong back. The heat sink fins are quite pointed and sharp so grabbing under and around them (note the girth and length of the receiver too) is difficult and can be painful. 60 pounds is 60 pounds...

Hi and Welcome to AK! You haven't done anything wrong. Unfortunately, during a couple of server crashes in the past, many photos tied to threads before around 2016 were lost. IF the members who posted pics are still around, you might send a message to them to ask if they can repost or post the...

When trying to run 2 pairs of speakers (system 1 and system 2), Marantz (and most vintage Japanese receiver makers) specified that you must use 8 ohm or 16 ohm speakers for each system. This is because when hooked up, they are connected internally as parallel when run together. Run as...

The pair look to be in very good condition. If the top veneer is any indication and hopefully the rest of the cabinet veneer is similar, then they would be worth the inquiry. If they are priced well, you should not lose anything if you eventually decide to sell them. Your L19A have a similar...

Did you ever find a European version of the PC2002M? There is a meter less version on ebay UK from France, one channel is slow to come Out of protection. This can easily be fixed usually with a rebuild of the protection circuits and DC offset servos, especially replacing the capacitors. Then...

Not even a repair, just a sloppy job at sealing cracked surrounds with latex caulk. Obviously an amateur job from someone who 1) doesn't really know anything about JBL speakers or drivers, and 2) doesn't have any sense of what to properly do, and 3) doesn't care (IMO) about doing it right...

@Slapshot did you have pics and notations about the old drivers that were in your RSPM Mk IV’s? Are the speakers the original Mk IV or the Mk IV improved? Reason is early versions of the RSPM Mk IV used the oval KEF B139 SP1044 with flat front expanded polystyrene cone while later versions and...

Are we sure which HF1300’s used in RSPM Mk IV’s are impedance wise, 4, 8, 15-16, or 32 (very rare)? If anyone has a Mk IV, could they pull it and photograph it and measure them? As noted above, others can be made to work, or the crossover values modified to use non-OEM impedance version...

Congrats and welcome to AudioKarma! We can help you troubleshoot these 4612B's. Regarding the working cabinet, the tweeter control is an L-pad which get dirty and oxidize over time. If you can obtain some DeOxit D5 spray cleaner with a thin tube, you can spray that into the vent holes on the...