DoubleJ Posted February 8, 2005 Share Posted February 8, 2005 Hi: I'm getting no bass from either speaker, but I'm getting sound out of the tweeters and the midranges. Granted they sound tinney, but there is sound. Here is what I have done so far to track down where the problem lies. 1. Check all the solder connections on all the drivers, including the woofer inside the 20X20 door/hatch. They all look good and clean. 2. Tightend all the connections on the X overs. 3. Tried numerous ways of connecting speaker wires (soldered, bare, crimped) 4. Cheched to make sure everything is wired in phase Still no bass. This is my first go around with K-horns, so hopefully it as easy as me not hooking them up correctly. Here's how I'm connecting the speakers from my amp source(Denon 3801, for now) From the amp, I'm connecting the speaker wire to posts' 1 & 2 (AA Crossover) From the cross-over posts' 3 & 4, I have speaker wire running to the screw type binding post on the 20X20 hatch. Thank you in advance for your help. JJ Quote Link to comment Share on other sites More sharing options...
BEC Posted February 8, 2005 Share Posted February 8, 2005 JJ, Have you ever heard these woofers work? Would be strange for both to bad. You may need to take the woofer door off and check connections inside. If you have an ohmmeter, the woofer should measure a bit over 3 ohms. If it reads open when measured right at the terminals of the woofers, they are bad. Bob Quote Link to comment Share on other sites More sharing options...
Thumpelstiltskin Posted February 8, 2005 Share Posted February 8, 2005 I'd try sending a signal directly to the woofer, bypassing the xover for testing. Quote Link to comment Share on other sites More sharing options...
DoubleJ Posted February 9, 2005 Author Share Posted February 9, 2005 Bob/Thump: Thanks for your responses. Bob: I haven't heard these work, just took the person's word for it. There's one born every minute, right? I will have access to an OHM meter tomorrow and I post the results. Thump: I did run the speaker wires from the amp to the posts on the woofer door and left the lead disconnected to the crossover. Is this what you meant by by-passing the X over? Thanks again guys. JJ Quote Link to comment Share on other sites More sharing options...
Thumpelstiltskin Posted February 9, 2005 Share Posted February 9, 2005 Thump: I did run the speaker wires from the amp to the posts on the woofer door and left the lead disconnected to the crossover. Is this what you meant by by-passing the X over? Thanks again guys. JJ ---------------- Yes. Be sure you have a signal coming from the receiver. Then hook your wires directly to the posts on the woofers. Good luck. Quote Link to comment Share on other sites More sharing options...
Deang Posted February 9, 2005 Share Posted February 9, 2005 If you don't have a meter you can use a C or D sized battery. Just tape a lead to each end of the batter and touch them to the woofer tabs (one on +, the other on - ). If the woofer doesn't push out, or pull back -- the voice coil is open. Do NOT use a 9 volt battery. Quote Link to comment Share on other sites More sharing options...
Thumpelstiltskin Posted February 9, 2005 Share Posted February 9, 2005 I would be all over the seller if those woofers are bad. Maybe you can convince him to swap them for the ones in his Cornwalls. Quote Link to comment Share on other sites More sharing options...
ricktate Posted February 9, 2005 Share Posted February 9, 2005 On the inside of the 20x20 access door the wires connect to the terminal mount and this connection gets pulled on alot, try running new wire to woofer from access door.Rick Quote Link to comment Share on other sites More sharing options...
T2K Posted February 9, 2005 Share Posted February 9, 2005 This may sound like a dumb suggestion but I witnessed this problem first hand - replace the fuses. That is, if there are fuses in your speakers. Trying to audition '89 Khorns, no bass from either speaker. Pulled the fuses, they looked good. Bought/replaced fuses and both speakers worked. Hope this helps. Keith Quote Link to comment Share on other sites More sharing options...
ricktate Posted February 9, 2005 Share Posted February 9, 2005 Be sure and use the ohm meter at the woofer to take the wiring out of the mix still could be the wiring broke inside the insulation.Rick Quote Link to comment Share on other sites More sharing options...
ricktate Posted February 9, 2005 Share Posted February 9, 2005 You might go ahead and take the woofer all the way out ..easy to do...to make sure nothing has made a nest or chewed on the woofer.Were these K-Horns in storage or in service when you got them? Rick Quote Link to comment Share on other sites More sharing options...
Dylanl Posted February 9, 2005 Share Posted February 9, 2005 There are no fuses on a 78 Khorn. Is that the original wire? if so check to make sure it is not cracked. The AA crossovers are marked Tweeter 6,7, Woofer 3,4 Input 1,2 Squawer, 5,6. This should be a no brainer. Your plan of using an OHM meter is one of the best ways to see what is going on. Just take your time and be thorough. Also make sure you bend the wire while testing. You should have the square magnet on the woofers. These are usually very stout drivers. I would be surprised if both were blown. Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted February 9, 2005 Share Posted February 9, 2005 edit post, it was stupid. I was asking if the speakers were in the CORNER of room, but rereading the other posts, you guys are obviously way past that point in your troubleshooting if you're checking leads, hooking up D cells etc. Good luck. Yeah, I'd bargain to swap woofers with the Corns. Same 15" K33 unit in both. Michael Quote Link to comment Share on other sites More sharing options...
Dylanl Posted February 9, 2005 Share Posted February 9, 2005 Michael, when I pull my Khorns away from the corners and just have the woofer running I am amazed at the amount of music comming from the bass bin. I used to think it was more like a sub but no way. Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 9, 2005 Share Posted February 9, 2005 At the risk of asking a stupid question, are you sure that there are even woofers in the cabinets? It is very unusual that both would be dead, unless disconnected. 1) woofers intact connect wires from amp DIRECTLY to woofer terminals Sound? if yes then the problem is with the xover connection to the woofers if no, then the woofers in question are indeed dead DM Quote Link to comment Share on other sites More sharing options...
DoubleJ Posted February 9, 2005 Author Share Posted February 9, 2005 Let me say Thanks again for all your input/advice. I have obtained an OHM meter and did some testing. (FYI the unit is a BK Precision model #2945 made by the Dynascan Corp.) I set the meter to 2K and did some quick testing at lunch. It got a reading of between .0003 and .0004 at the following points on one of the speaker: 1. Directly at the woofer(on the tabs, solder joints, etc)..This should answer your Q DeanG 2. Inside the hatch where the leads attach to the inside door. 3. Outside on the binding post. 4. and lastly at locations 3 & 4 on the x-over. Speaker 2 I got readings a little higher (.0004-.0005) at the same locations mentioned above. But everyonce in awhile I could here static through either the mid range or the tweeter while doing the testing. Since I didn't encounter this on the other speaker, I decided to swap the wire from speaker 1 and put it on speaker 2. Hmmm. now I get no readings, deader than a door nail on speaker 2. Okay?? So I take off the wire on speaker 2 and reinstall it on speaker 1 and now I get no reading here as well. Now on to something even more weird about this whole fiasco. The only wire that would work (when it did work) was some flat-low profile braided Mon@#er 10ga wire crap that came with the speakers. So I ask you this, what type of wire should I be using from the X-over to the bass bin? 14ga Carol wire surely didn't work wether is was bare wire of using crimped on spade connectors. DeanG: I also tried connecting the amp directly to woofer, but no bass output. Dead silence. I haven't tried your battery trick but will try that as well. I do have one other test I can do, but I want to do this as a last resort and that is to canniblize my Single Cornwall that I got last month. It just happends to be from the same year as the K-Horns, and I know that this one works. GRRRR!! It's not looking good for the home team. Thanks again for you time and guidence, it is very much appreciated. JJ Quote Link to comment Share on other sites More sharing options...
WMcD Posted February 9, 2005 Share Posted February 9, 2005 I don't have a car, being a city dweller in Chicago. I see you're in Wisconsin. If that is Milwaukee or on an Amtrak line, I could visit and give you a hand this coming weekend. Edit: Give me a PM and an e-mail. I'm going out of town Thrusday noon and return Friday night. Best, Gil Quote Link to comment Share on other sites More sharing options...
ricktate Posted February 10, 2005 Share Posted February 10, 2005 Did you test the woofer with wires unhooked from the crossover? If so, i think the woofers are good and the wire or terminals are the problem. It does seem like wierd stuff happening,I would rewire the woofer..from access door to woofer...and then test the OHMs on the terminal,if good there then hook new wire from crossover to woofer door. But to do all this still requires removal of the woofer and then you could just hook Amp right to the woofer. Rick Quote Link to comment Share on other sites More sharing options...
Daddy Dee Posted February 10, 2005 Share Posted February 10, 2005 Gil, That is one kind offer. You represent the good will of the forum well. Quote Link to comment Share on other sites More sharing options...
DoubleJ Posted February 10, 2005 Author Share Posted February 10, 2005 ---------------- On 2/10/2005 8:18:13 AM Daddy Dee wrote: Gil, That is one kind offer. You represent the good will of the forum well. ---------------- Dandy Dee: I agree and here's a portion of my e-mail to Gil: "I just love this forum and what people do for each other here. I've been a member of this form since 2001, but even though I don't post much, I read it everyday and gain great wisdom." I will keep you posted on my adventure. I'm still in denial that the woofers bad, but will have to come to grips if in fact they are bad, sooner or later. Rick: I'll try your suggestion once I can find someone to do the soldering for me. I'm very sloppy at it and this will require some precision. Thanks again, ALL, for your continued support in this very unfortunate adventure. JJ Quote Link to comment Share on other sites More sharing options...
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