| JBL 2226H question: is this right? [message #70602] |
Fri, 23 December 2011 14:50  |
haanjamin
Messages: 8
Registered: December 2011
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Esquire |
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I bought all the components for the 4 Pi speakers and am in the middle of constructing the cabinets. I just received used 2226H from an Ebay auction stating they were tested and in great condition. I hooked them up to my subwoofer amp to check the operation in free air.
Giving it around 20 watts with music, when the bass hits it sounds like serious port chuffing or bottoming out when the cone seems to be moving like 3mm. I then put it in the cabinet (with the horn and tweeter also installed) and got the same thing. Using REW signal generator, I get a lot of distortion from 40-80 hz with only like 50 watts. At the higher frequencies, it takes less power to make the distortion start than the lower frequencies. Both of the woofers do the same thing. I haven't installed the insulation yet but I don't think that should make that huge of a difference.
So I look up a speaker repair place and take them over to get tested. He took the woofers to back in the shop and said he gave them a couple hundred watts and they are fine.
This is my first time dealing with pro audio woofers but things just don't seem right to me. I haven't received the crossover yet so I haven't heard what the whole speaker will sound like yet.
Can anyone offer insight into this or offer a different test I should do?
Sorry for the rambling but I would appreciate it if someone could help me.
Thanks in advance
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| Pics pls! [message #70607 is a reply to message #70605] |
Fri, 23 December 2011 20:24  |
spkrman57
Messages: 522
Registered: May 2009
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Illuminati (1st Degree) |
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Please take pics of the backs and fronts of these 2226H's.
I think something funny is going on here.
I live in Columbus, Ohio and could test these drivers if you are within driving distance.
I have used JBL 2226H and J models (8 ohms and 16 ohm), there should be no sound issues from these drivers if they are working correctly!
If you would like to discuss this over the phone, send me a msg with your phone nr and time to call.
If the cores are correct for 2226, then a recone might be worth the cost depending on how much you like these drivers.
Regards, Ron
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| Re: JBL 2226H question: is this right? [message #70611 is a reply to message #70609] |
Fri, 23 December 2011 22:05 |
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Wayne Parham
Messages: 18793
Registered: January 2001
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Illuminati (33rd Degree) |
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Those drivers look good, but that doesn't mean much. Some of the aftermarket parts look damn close, too close to tell from pictures. It also could be they've just been rode hard and the coil is rubbing in the gap.
If you are close to Ron in Ohio, take him up on his offer. If not, call David Miller at Speakerworks: 800-526-8879
David is an authorized JBL technician, so he can get the real parts. You can't get them over-the-counter, so lots of people and small shops get the junk parts and put them in. It's hard to know who to trust, but I've done business with David for decades and can vouch for his work.
I haven't needed to do a recone in a while so I'm not sure of his prices but I don't think they're quite as high as you were quoted. I know they weren't last time I had recones done.
I'd offer to measure them for you but if you can get them to me, you can get them to David. He's setup to do the work if they need it, so you might as well go straight to him.
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| Re: JBL 2226H question: is this right? [message #70634 is a reply to message #70612] |
Sun, 25 December 2011 16:28 |
spkrman57
Messages: 522
Registered: May 2009
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Illuminati (1st Degree) |
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| haanjamin wrote on Fri, 23 December 2011 22:32 | on - Tried PM'ing you but got an error stating you weren't accepting private messages. I live in Grand Rapids, Michigan so semi close to you.
I really appreciate the help Wayne and Ron!
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I think I have corrected the PM issue and have sent you a PM with my contact data. Since you state you are wanting to use these for a end of year party, I have a pair of JBL 2225H's if you need something that bad quickly.
Tomorrow is my only day I have to help you on this since I have plans the rest of the week!
Call me tomorrow morning if you can....
Regards, Ron
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Since they distort at the same power input, would that be a sign of a knockoff recone job? I can't tell if the wire coming through the cone is flat or circular cross section because of too much black glue covering it.
Yep, turns out I was a dumbass. I was getting everything setup to test and call Ron and eyeballed my MiniDSP. I had recently taken my bumpbox out of the signal chain to see if my receiver could output a high enough signal to fully drive my EP4000 and never reinstalled it. I had also maxed out the subwoofer trim level when I did that. My MiniDSP was clipping the signal. I took it out of the signal chain and all is well. 
