Pio Posted December 29, 2020 Posted December 29, 2020 hello, i have a pair of kpt-1201-t unused, do you think it is possible use the drivers/crossovers to make a pair of new speakers, any opinions or ideas? i think the k-28 can sound better in other type of enclosure. any help will be really appreciated. best regards.. Pio 1 Quote
OO1 Posted December 29, 2020 Posted December 29, 2020 the internals of the KPT-1201-T can be used to make a 2 way speaker --the enclosure of the KPT-1201-T is a THX certified SMPTE /ISO 2696 X- curve de -emphasis style enclosure for optimal bass - NORMA ISO 2696 -Este es mi primer mensaje aunque llevo leyendo este foro asiduamente. Mi consulta gira en torno a la norma ISO 2696-X. Fija una curva de ecualización para las salas de cine y es la norma que exigen los de THX para conceder el certificado (entre otras prestaciones). -you can re-use the motorboard of the KPT -1201-T , the top and the rear panel of the cabinet with the crossover as panels for the new enclosure -- -all you would need are new panels for the bottom and the sides -the rear panel may have to be extended slightly and glued , but you can use the wood from the leftover panels as they are of the same color - Quote
Pio Posted December 29, 2020 Author Posted December 29, 2020 45 minutes ago, RandyH000 said: the internals of the KPT-1201-T can be used to make a 2 way speaker --the enclosure of the KPT-1201-T since it is a THX certified SMPTE /ISO 2696 X- curve de -emphasis style enclosure for optimal bass - NORMA ISO 2696 -Este es mi primer mensaje aunque llevo leyendo este foro asiduamente. Mi consulta gira en torno a la norma ISO 2696-X. Fija una curva de ecualización para las salas de cine y es la norma que exigen los de THX para conceder el certificado (entre otras prestaciones). -you can re-use the motorboard of the KPT -1201-T , the top and the rear panel of the cabinet with the crossover as panels for the new enclosure -- -all you would need are new panels for the bottom and the sides -the rear panel may have to be extended slightly and glued , but you can use the wood from the leftover panels as they are of the same color - thank you very much, i will try it Pio 1 Quote
OO1 Posted December 29, 2020 Posted December 29, 2020 52 minutes ago, Pio said: hank you very much, i will try it - You can duplicate the measurements of the top panel for the bottom panel and the motorboard will slide , right into these 2 panels - -the rear panel will connect to these 2 panels , but an extension is needed as it is currently slightly shorter by a few inches for a perfect rectangle - the 2 side panels will complete the new enclosure - Quote
Pio Posted December 29, 2020 Author Posted December 29, 2020 21 minutes ago, RandyH000 said: - You can duplicate the measurements of the top panel for the bottom panel and the motorboard will slide , right into these 2 panels - -the rear panel will connect to these 2 panels , but an extension is needed as it is currently slightly shorter by a few inches for a perfect rectangle - the 2 side panels will complete the new enclosure - Do you think the bass will be better? Pio 1 Quote
OO1 Posted December 29, 2020 Posted December 29, 2020 47 minutes ago, Pio said: Do you think the bass will be better? Pio yes , deeper since the volume of the cabinet will increase - -the ideal cabinet dimensions for bass with the K28k woofer is the Forte III -- -https://d2um2qdswy1tb0.cloudfront.net/product-specsheets/Forte-III-Spec-Sheet-v061.pdf?mtime=20170621103731&focal=none Quote
Pio Posted December 29, 2020 Author Posted December 29, 2020 7 hours ago, RandyH000 said: yes , deeper since the volume of the cabinet will increase - -the ideal cabinet dimensions for bass with the K28k woofer is the Forte III -- -https://d2um2qdswy1tb0.cloudfront.net/product-specsheets/Forte-III-Spec-Sheet-v061.pdf?mtime=20170621103731&focal=none The woofer in kpt-1201-t is a k-28-ep, do you think is the same driver? Pio 2 Quote
billybob Posted December 29, 2020 Posted December 29, 2020 Maybe an Eminence made speaker. Welcome to the forum! Quote
Pio Posted December 29, 2020 Author Posted December 29, 2020 2 hours ago, billybob said: Maybe an Eminence made speaker. Welcome to the forum! Maybe you're right Pio 2 Quote
OO1 Posted December 29, 2020 Posted December 29, 2020 3 hours ago, Pio said: The woofer in kpt-1201-t is a k-28-ep, do you think is the same driver? yes , same stamped steel basket and cone - but the k-28-EP is rated at 2x higher power handling than a K28K ( KLIPSCH ) or K28E ( EMINENCE ) - https://d2um2qdswy1tb0.cloudfront.net/product-specsheets/KPT-1201_Cutsheet.pdf?mtime=20190626151656&focal=none the K28k was made by Klipsch - used in Heresy III ---------------------- speaker rating -100 watts rating the K28E is made by Eminence - used in Heresy III-IV-Forte III-------speaker rating 100 watts rating the K28EP is made by Eminence - used in KPT-1201-T2 -----------------speaker rating 200 watts rating all k-28 series woofers are 4 Ohms - Quote
Pio Posted December 30, 2020 Author Posted December 30, 2020 22 hours ago, RandyH000 said: yes , same stamped steel basket and cone - but the k-28-EP is rated at 2x higher power handling than a K28K ( KLIPSCH ) or K28E ( EMINENCE ) - https://d2um2qdswy1tb0.cloudfront.net/product-specsheets/KPT-1201_Cutsheet.pdf?mtime=20190626151656&focal=none the K28k was made by Klipsch - used in Heresy III ---------------------- speaker rating -100 watts rating the K28E is made by Eminence - used in Heresy III-IV-Forte III-------speaker rating 100 watts rating the K28EP is made by Eminence - used in KPT-1201-T2 -----------------speaker rating 200 watts rating all k-28 series woofers are 4 Ohms - Great, if the same driver maybe I will make a heresy III/IV size sealed cabinet, what do you think? Pio 1 Quote
OO1 Posted December 30, 2020 Posted December 30, 2020 2 hours ago, Pio said: Great, if the same driver maybe I will make a heresy III/IV size sealed cabinet, what do you think? Pio if you want to use the same drivers and crossover , you must re-use the front motorboard with 0 changes , but you can turn it 180 degrees , this is critical for the front port and the time alignment of the woofer with the HF horn and HF Driver --and the enclosure will sound right - - the rest can be identical in depth to a Heresy IV or III - Quote
Pio Posted December 31, 2020 Author Posted December 31, 2020 On 12/30/2020 at 11:07 AM, RandyH000 said: if you want to use the same drivers and crossover , you must re-use the front motorboard with 0 changes , but you can turn it 180 degrees , this is critical for the front port and the time alignment of the woofer with the HF horn and HF Driver --and the enclosure will sound right - - the rest can be identical in depth to a Heresy IV or III - Thank you very much, I was listening the kpt-1201-t last night and after tweaking the sound with a dbx pa2 and mic. the sound surprised me. 2 Quote
OO1 Posted December 31, 2020 Posted December 31, 2020 29 minutes ago, Pio said: Thank you very much, I was listening the kpt-1201-t last night and after tweaking the sound with a dbx pa2 and mic. the sound surprised me. 200 wpc is 2x the power of a Heresy or a Forte , plus it's THX SMPTE /ISO 2696 certified which neither of the Heresy or a Forte are /THX ISO 2696 is a high standard for the dynamic range of digital formats , and the DBX PA2 is an active processor for such an application - these speakers shine with clean SS power , the more , the better - That's one helluva a speaker , only hic is the cabinet must be mounted to a wall or a fixture to project the correct sound , similar to a Studio Monitor /close to ear level -but you can also reverse it 180 degrees as the woofer is out in either position - Quote
Pio Posted January 1, 2021 Author Posted January 1, 2021 On 12/31/2020 at 2:07 PM, RandyH000 said: 200 wpc is 2x the power of a Heresy or a Forte , plus it's THX SMPTE /ISO 2696 certified which neither of the Heresy or a Forte are /THX ISO 2696 is a high standard for the dynamic range of digital formats , and the DBX PA2 is an active processor for such an application - these speakers shine with clean SS power , the more , the better - That's one helluva a speaker , only hic is the cabinet must be mounted to a wall or a fixture to project the correct sound , similar to a Studio Monitor /close to ear level -but you can also reverse it 180 degrees as the woofer is out in either position - Definitely better than my refurbished heresy 1.5, I am surprised 1 Quote
OO1 Posted January 1, 2021 Posted January 1, 2021 7 minutes ago, Pio said: Definitely better than my refurbished heresy 1.5, I am surprised the midrange on the Heresy 1,5 lost out when they removed the K55V-Atlas PD5VH Midrange driver , but oddly , Klipsch still uses the K55V in the Lascala AL5 and the Khorn AK6 -12K$ and 15k$ speakers , what you can do is find a pair of K55V drivers and remove the K52 --K53 , and you will love your Heresy 1,5 way more , it's a natural combination with the K77M tweeter and the k22 woofer - Quote
Pio Posted January 1, 2021 Author Posted January 1, 2021 12 minutes ago, RandyH000 said: the midrange on the Heresy 1,5 lost out when they removed the K55V-Atlas PD5VH Midrange driver , but oddly , Klipsch still uses the K55V in the Lascala AL5 and the Khorn AK6 -12K$ and 15k$ speakers , what you can do is find a pair of K55V drivers and remove the K52 --K53 , and you will love your Heresy 1,5 way more , it's a natural combination with the K77M tweeter and the k22 woofer - I think I will buy another 3 pairs, at the equivalent 100usd per pair I can't resist 1 Quote
OO1 Posted January 1, 2021 Posted January 1, 2021 1 minute ago, Pio said: I think I will buy another 3 pairs, at 100usd per pair I can't resist you're right , they range from 500$ in terrible shape to 1k$ the moment you cross the border - Quote
Pio Posted January 1, 2021 Author Posted January 1, 2021 1 minute ago, RandyH000 said: you're right , they range from 500$ in terrible shape to 1k$ the moment you cross the border - The seller have 25 used pairs, minor dings, but the drivers in pristine condition. Unfortunately I don't have enough space for more pairs. Pio 1 Quote
OO1 Posted January 1, 2021 Posted January 1, 2021 5 minutes ago, Pio said: The seller have 25 used pairs, minor dings, but the drivers in pristine condition. Unfortunately I don't have enough space for more pairs. Pio grab the best - Quote
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