Dylanl Posted July 24, 2009 Share Posted July 24, 2009 I have a pair of 511 horns and drivers. Is there any way I can hook them up to my ALK crossovers or would I need to make a change to get the right sound out of them? Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 25, 2009 Author Share Posted July 25, 2009 Not even a view? What has happened here not many visiting? This used to be a popular modification to a Khorn. Any help would be appreciated. Quote Link to comment Share on other sites More sharing options...
Blvdre Posted July 25, 2009 Share Posted July 25, 2009 The view counter never works, just ignore it. Which ALK x-overs do you have? The universal crosses at 400Hz, whereas the 511 is only good to 500Hz, so you might want to raise your woofer/mid point to accomodate the 511s. Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 27, 2009 Author Share Posted July 27, 2009 Yes I have the original crossovers I think the universal. I want to use the drivers that came with these I just can't find any markings on them. If I post pictures do you think you could tell the driver type? Thanks Quote Link to comment Share on other sites More sharing options...
bluesboy Posted July 27, 2009 Share Posted July 27, 2009 Yes, post a picture. They must be Altec drivers right? If they are 902s they will work fine with the ALK universals. Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 27, 2009 Author Share Posted July 27, 2009 Ok here are the pictures Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 27, 2009 Author Share Posted July 27, 2009 2nd Quote Link to comment Share on other sites More sharing options...
Cut-Throat Posted July 27, 2009 Share Posted July 27, 2009 A friend of mine has 805B Altec Horns hooked up to 288-16G drivers and uses ALK crossovers just fine. May require some tweaking it will be possible. - It will be a HUGE improvement using the Altec Midrange! Quote Link to comment Share on other sites More sharing options...
Mike Lindsey Posted July 27, 2009 Share Posted July 27, 2009 I don't know about the Altec drivers, but the K55 mounts right to the 511B's with an adaptor. I have run this combination for many years with my ALK Universals and they sound great! Much better than the K400 horn! Mike Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 27, 2009 Author Share Posted July 27, 2009 I have run the adapters also and I agree they are better that way but I would like to hear those Altec drivers. Anyone have a guess of which seires they are? Thx Quote Link to comment Share on other sites More sharing options...
JohnA Posted July 27, 2009 Share Posted July 27, 2009 It's an 800-series Altec, an 802, 806, 808, 809. If the magnet is good, an 809 can be turned into an 802/806. Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 28, 2009 Author Share Posted July 28, 2009 The magnets seem strong and the drivers read 7.3 and 6.9 in resistance. Al Klappenberger told me that these should work just start with the tap settings low around 0-1. He also said to watch because the volume could burn out the drivers ( see response below ). Al I have the adapter and have tried that and it sounds great. I was just >wondering about using the Altec drivers if it was better or worse. Reply from Al.... "The Altec driver are better, but the horn itself is the big improvement. You can use the Altec drivers by changing the transformer taps. If they are 8 ohm drivers, try taps 0-1 to start and be very careful with the volume control!" So I guess my 1st question is) are these 8 ohm drivers? 2nd question) How do I know which poll is positive and which is negative on these there are no markings? Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 28, 2009 Author Share Posted July 28, 2009 It's an 800-series Altec, an 802, 806, 808, 809. If the magnet is good, an 809 can be turned into an 802/806. How so? Quote Link to comment Share on other sites More sharing options...
Blvdre Posted July 28, 2009 Share Posted July 28, 2009 It's an 800-series Altec, an 802, 806, 808, 809. If the magnet is good, an 809 can be turned into an 802/806. How so? I'm guessing by swapping the diaphragms. I say guessing because I'm not sure what the 809 has (symbiotic?), but the 802 and 806 have aluminum. Quote Link to comment Share on other sites More sharing options...
JohnA Posted July 28, 2009 Share Posted July 28, 2009 The 808/809 has a tougher, higher power diaphragm called pascalite. The response only goes up to 8k or 10k, the 802 diaphragms will fit and while they have a a much lower power rating (15 watts?) will go up to 16k to 18k in the old 800-series drivers. Look up Great Plains Audio. They may still have diaphragms and 902 diaphragms may also fit. They can also help you figure out which model you have. Yes, those are 8 ohm drivers. I'dexpect the model number to be 808-8A. I THINK they were the most common. djk will know. Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 28, 2009 Author Share Posted July 28, 2009 Once open these do look to be aluminum diaphragms inside. They also have tabs that are 90 degrees running from the diaphragm to the outside of the frame. How do I know the polarity since there are no markings? Quote Link to comment Share on other sites More sharing options...
TBrennan Posted July 28, 2009 Share Posted July 28, 2009 Symbiotic (807 and 808) and pascalite (809) diaphragms are also aluminum. I've never seen a pascalite but the symbiotics have a synthetic surround rather than the aluminum surround of regular aluminums, that's where the higher power handling comes from, that and more space between the diaphragm and phasing plug (the space being the main reason the highs suffer). The aluminum surrounds could crack under stress. 804 and 806 drivers have less extended highs than 802-902s because of their smaller magnets and are IMO not the Altec drivers of choice. They're fine though if you're using a tweeter. Quote Link to comment Share on other sites More sharing options...
Dylanl Posted July 28, 2009 Author Share Posted July 28, 2009 Thanks Tom, I did not know if you still resided here. Tom, I have known you always to be level headed and knowledgeable about many brands along with Klipsch. I appreciate your input. I will post a picture of the internals if it helps ( diaphragm ). Thank You Quote Link to comment Share on other sites More sharing options...
nola Posted July 29, 2009 Share Posted July 29, 2009 " I don't know about the Altec drivers, but the K55 mounts right to the 511B's with an adaptor. I have run this combination for many years with my ALK Universals and they sound great! Much better than the K400 horn! Mike " I have heard folks talk about an adapter. Is it one of these from Partsexpress? Speakers >> Compression Horn Adapters ADM-25 or ADF-25, both under $10- each? COMPRESSION HORN ADAPTERS Grid View | List View Sort Results By Highest Rated Most Reviews Price Low to High Price High to Low Category Results Per Page 9 27 48 99 Items 1 through 3 of 3. All Records Shown Selenium ADM25-25 Horn Adapter (5 reviews) List: $10.99Now: $6.35In Stock Ships Free on Most Orders Over $98 click for details Eminence APT-3 APT To Screw-Thread Horn Adapter (3 reviews) List: $4.99Now: $4.47Due 8/12/2009 Ships Free on Most Orders Over $98 click for details Selenium ADF25-25 Horn Adapter (9 reviews) List: $5.99Now: $3.76In Stock Ships Free on Most Orders Over $98 click for details I also have 511s and also have 902-8 ohm drivers. Could you use the 902s on the K400 horn of the Khorn or LaScala? Which adapter to use? Can you use the K55 Klipsch driver on the 511 horn? Again, which adapter to use? No one has mentioned how to raise the woofer/mid cutoff from 400 to 500 Hz on either the Klipsch A or AAs nor the ALK Universal? How do we do this? But thanx for letting us know to adjust the auto transformer. How does one get rid of the tweeter/mid cutoff at 4500 Hz so that the 511 horn can run from 500-20000 Hz? THX from the Big Easy -- NOLA Quote Link to comment Share on other sites More sharing options...
Blvdre Posted July 29, 2009 Share Posted July 29, 2009 Nola I would recommend using the P-Audio adapters instead of the selenium, as the P-audio's are aluminum (and reasonably priced). If you want to mount a k55 to a 511, use the PC-25. Conversely, use the PC-35 for mounting a 902 to a k400. You mentioned raising the crossover point from 400 to 500Hz; for which mid driver, specifically for what impedance? Quote Link to comment Share on other sites More sharing options...
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