Curious_George Posted October 23, 2021 Share Posted October 23, 2021 I bought a pair of these recently for my eventual LaScala rebuild. I know these horns have come up before in various threads, but I don't recall seeing any frequency response graphs of a K55V (push-pin) on the 18 x 10 horn. Perhaps one is buried in a thread somewhere, but here is a measurement that I made this morning. Two items I wanted to know about the horn was the low-end response, which clearly goes down to 400Hz and how smooth the frequency response was across the midrange band. The 18 x 10 and K55V appear to be a great match. I'm not a horn expert, but the 18 x 10 looks to be an exponential horn. I have not listened to them yet, but will try and patch together at least one channel to see how they sound. 2 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 23, 2021 Author Share Posted October 23, 2021 I've got the ZXPC 18 x 10 horns w/ K55v's on top of my LaScala's and they (k55V & horn) sound much more natural than the K400's. Typical audiophile adjectives that come to mind are more open, less veiled, less colored, etc. I know there are other horns out there that could be used, but for the money and sound quality, this ZXPC horn is a bargain and worth trying if you are in the market for a 400Hz mid horn. It has a thick casting and is fairly non-resonant. I mounted a JBL D250X on the ZXPC horn too and it measured great and sounds good as well. 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 23, 2021 Share Posted October 23, 2021 9 minutes ago, Curious_George said: I've got the ZXPC 18 x 10 horns w/ K55v's on top of my LaScala's and they (k55V & horn) sound much more natural than the K400's. are these the K510 Clones , can you show a picture of the Adaptors you are using with the K55V Quote Link to comment Share on other sites More sharing options...
rmlowz Posted October 23, 2021 Share Posted October 23, 2021 I have a pair of the 10x18 horns with a EV DH1As on a cornscala bass bin with 15cs and custom made crossovers. Thanks for the mearsurements and info. I will have to try it with my K55V and K55Gs. The combo I have now sounds amazing to my ears. 2 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 23, 2021 Author Share Posted October 23, 2021 2 minutes ago, rmlowz said: I have a pair of the 10x18 horns with a EV DH1As on a cornscala bass bin with 15cs and custom made crossovers. Thanks for the mearsurements and info. I will have to try it with my K55V and K55Gs. The combo I have now sounds amazing to my ears. It is a great combo. Glad your results are similar to mine. Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 23, 2021 Author Share Posted October 23, 2021 16 minutes ago, 001 said: are these the K510 Clones , can you show a picture of the Adaptors you are using with the K55V No, these are not the K510 clones, but the larger "generic" horns; 18 x 10. That is how they are listed. The PRV adapter below is what I am using, but they are ABS (only) and fairly soft, which you would expect. I think I'll get some aluminum ones since the PRV threads are already starting to get "boogered" up. That's a North Carolina term... 2 Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 24, 2021 Share Posted October 24, 2021 1 hour ago, Curious_George said: the PRV threads are already starting to get "boogered" up. That's a North Carolina term... Cool enough , did you try using 3mil teflon tape on the metal threads prior to threading onto the softer ABS Quote Link to comment Share on other sites More sharing options...
grendel23 Posted October 24, 2021 Share Posted October 24, 2021 I am using these horns with BMS 4592ND drivers. I am running active with Quarter Pies and it sounds good. I am getting K-402 horns in a few weeks and will compare. Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 25, 2021 Author Share Posted October 25, 2021 On 10/24/2021 at 7:54 AM, 001 said: Cool enough , did you try using 3mil teflon tape on the metal threads prior to threading onto the softer ABS Not yet, but now that you mention it, that will help. Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 25, 2021 Author Share Posted October 25, 2021 19 hours ago, grendel23 said: I am using these horns with BMS 4592ND drivers. I am running active with Quarter Pies and it sounds good. I am getting K-402 horns in a few weeks and will compare. I am certain the K-402's will sound better, however, the cost difference is quite significant. 3 Quote Link to comment Share on other sites More sharing options...
LTusler Posted October 25, 2021 Share Posted October 25, 2021 They sure look like a 402's smaller sibling. Quote Link to comment Share on other sites More sharing options...
Maz4bz Posted October 27, 2021 Share Posted October 27, 2021 I have this horn with a P-Audio BM-D450S. The horn is very well constructed. Measurements: Horizontal... Vertical: Distortion Energy storage Measurement setup - Omnimic with 5ms gating, driving an AX-550 with mic at 1m with turntable graduated in 10 degree increments.... BM-D450SMKII.pdf 1 Quote Link to comment Share on other sites More sharing options...
jwgorman Posted October 29, 2021 Share Posted October 29, 2021 I am happy with them too. I have run N314x and HF146 drivers with Eminence adapters. 2 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 29, 2021 Author Share Posted October 29, 2021 Thank you for posting your measurements on the 18 x 10 horns. 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 29, 2021 Share Posted October 29, 2021 On 10/24/2021 at 5:46 PM, grendel23 said: I am using these horns with BMS 4592ND drivers. I am running active with Quarter Pies and it sounds good. I am getting K-402 horns in a few weeks and will compare. do you have the klipsch k402 part numbers - tx Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 29, 2021 Share Posted October 29, 2021 2 hours ago, jwgorman said: I am happy with them too. I have run N314x and HF146 drivers with Eminence adapters. bet you the N314X was a blast 2 Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted October 29, 2021 Share Posted October 29, 2021 I'm sure the part numbers are available from Klipsch customer service. Quote Link to comment Share on other sites More sharing options...
Madman1 Posted October 29, 2021 Share Posted October 29, 2021 On 10/23/2021 at 12:23 PM, Curious_George said: I bought a pair of these recently for my eventual LaScala rebuild. I know these horns have come up before in various threads, but I don't recall seeing any frequency response graphs of a K55V (push-pin) on the 18 x 10 horn. Perhaps one is buried in a thread somewhere, but here is a measurement that I made this morning. Two items I wanted to know about the horn was the low-end response, which clearly goes down to 400Hz and how smooth the frequency response was across the midrange band. The 18 x 10 and K55V appear to be a great match. I'm not a horn expert, but the 18 x 10 looks to be an exponential horn. I have not listened to them yet, but will try and patch together at least one channel to see how they sound. Are you still using the factory k77? Quote Link to comment Share on other sites More sharing options...
Curious_George Posted October 30, 2021 Author Share Posted October 30, 2021 57 minutes ago, Madman1 said: Are you still using the factory k77? I’m experimenting with a PRV D260My-B on an APT200S. Sounds very good. Quote Link to comment Share on other sites More sharing options...
zobsky Posted October 30, 2021 Share Posted October 30, 2021 6 hours ago, jwgorman said: I am happy with them too. I have run N314x and HF146 drivers with Eminence adapters. What crossover frequency did you use with HF146 and did you need to roll in a tweeter ? Thanks Quote Link to comment Share on other sites More sharing options...
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