RRR Posted July 26, 2019 Share Posted July 26, 2019 I doubt flipping the bass bin 90 degrees will do anything but experimentation is free. 8 minutes ago, Alessio said: Any opinion on this solution to the resonating issue? Install braces. Quote Link to comment Share on other sites More sharing options...
Alessio Posted July 26, 2019 Share Posted July 26, 2019 1 minute ago, jason str said: I doubt flipping the bass bin 90 degrees will do anything but experimentation is free. Won't the floor and the weight of top section help to mitigate the thin panels vibrations? Even a little bit… Quote Link to comment Share on other sites More sharing options...
RRR Posted July 26, 2019 Share Posted July 26, 2019 2 minutes ago, Alessio said: Won't the floor and the weight of top section help to mitigate the thin panels vibrations? Even a little bit… Using feet, not likely. Attaching the bass bin to the top section as an alternative, could be. Quote Link to comment Share on other sites More sharing options...
Alessio Posted July 29, 2019 Share Posted July 29, 2019 On 7/26/2019 at 7:00 PM, jason str said: Using feet, not likely. No, i mean without feet, the bass bin side placed directly on the ground (in my case on a carpet). Quote Link to comment Share on other sites More sharing options...
tooppy Posted October 18, 2019 Share Posted October 18, 2019 Hello I am thinking of making a LaScala two ways with a Faital-pro HF200-8 +TD460N or a Faital-pro HF140-8+LTH142, combined with this Beyma 12BR70-8 in the bass bin ! OK it is just a 12", if it has to be scaled down, lets do it. Could this be done ? I have no simulation tools nor talent for doing it. TECHNICAL SPECIFICATIONS Beyma 12BR70-8 Power capacity 125 W RMS Nominal diameter 300 mm 12 in Nominal impedance 8 ohm Minimum impedance 6.6 ohm Program power 250 W Sensitivity 93 dB 1 W @ 1m @ 2Π Frequency range 25-4000 Hz Recommended enclosure volume 50 / 120 l 1.77 / 4.24 ft³ Voice coil diameter 52 mm 2 in BL factor 12.1 N/A Moving mass 0.074 Winding length 19 mm Air gap height 7 mm Xdamage pp 25 mm THIELE SMALL PARAMETERS Fs 31 Hz Re 5.6 ohm Qms 4.44 Qes 0.56 Qts 0.50 Vas 142 l Cms 345 µm / N Rms 3.3 kg / s Efficiency % 0.76 Sd 0.054 m² Xmax 8 mm Vd 340 cm³ Le @1 kHz 0.85 mH CONSTRUCTIVE DETAILS Net weight 3.6 kg 7.92 lb Total weight 4.1 kg 9.04 lb Magnet Ferrite Thanks Quote Link to comment Share on other sites More sharing options...
drboar Posted October 20, 2019 Share Posted October 20, 2019 With a 12" woofer you can extend the hornpath with a short straight stub into the doghouse, extending the bass some few Hz. I would rather look into that then scaling down the basshorn and getting the midrange horn even lower. Quote Link to comment Share on other sites More sharing options...
SWL Posted October 20, 2019 Share Posted October 20, 2019 Those who have heard and felt horn bass and sub bass from an all horn system want to go home and throw rocks at their DR woofers. That's a statement I can relate to. In fact, I'm throwing rocks at my DR subs right now. Sent from my SM-G950U using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
OCBob Posted October 10, 2020 Share Posted October 10, 2020 Great thread!! Quick question.... Most everyone stating the The Kappa 15C is a upgrade are also using a subwoofer. I am not. Is the The Kappa 15C still a good choice? Has anyone ran the The Kappa 15A (8 ohm version) in a La Scala? Thanks everybody! Bob 1 Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 10, 2020 Share Posted October 10, 2020 4 ohms woofers -----only - 1 Quote Link to comment Share on other sites More sharing options...
Dave A Posted October 12, 2020 Share Posted October 12, 2020 On 7/26/2019 at 11:49 AM, jason str said: I doubt flipping the bass bin 90 degrees will do anything but experimentation is free. Install braces. 100% CORRECT! The single best quick upgrade you can make to a La Scala. Better than recapping or tweeter upgrades and nearly as effective as replacing the sides with 25mm Baltic birch and far easier to do than side replacements. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 12, 2020 Author Share Posted October 12, 2020 Like my Super Heresy mod, it's nice to see something I wrote over 6 1/2 YEARS ago is still being discussed and acted upon in the name of better sound from some great Klipsch speakers Paul created that have withstood the greatest test of all.................the test of time (and many ears). 2 Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 12, 2020 Author Share Posted October 12, 2020 On 10/20/2019 at 5:25 AM, drboar said: With a 12" woofer you can extend the hornpath with a short straight stub into the doghouse, extending the bass some few Hz. I would rather look into that then scaling down the basshorn and getting the midrange horn even lower. Waste of time. Just build a Peavey FH-1, or find a used one on Craigslist dirt cheap and repaint it. 1 Quote Link to comment Share on other sites More sharing options...
Panelhead Posted October 13, 2020 Share Posted October 13, 2020 6 hours ago, ClaudeJ1 said: Like my Super Heresy mod, it's nice to see something I wrote over 6 1/2 YEARS ago is still being discussed and acted upon in the name of better sound from some great Klipsch speakers Paul created that have withstood the greatest test of all.................the test of time (and many ears). Is the 15C driver an upgrade in recent vintage Heritage speakers? Looked at Parts Express and they show in stock. Reasonable too. Always interested in improvements. But extremely satisfied with as is. Quote Link to comment Share on other sites More sharing options...
OO1 Posted October 13, 2020 Share Posted October 13, 2020 45 minutes ago, Panelhead said: Is the 15C driver an upgrade in recent vintage Heritage speakers? Looked at Parts Express and they show in stock. Reasonable too. Always interested in improvements. But extremely satisfied with as is. dont forget the KLIPSCH k43 ----- Quote Link to comment Share on other sites More sharing options...
henry4841 Posted October 13, 2020 Share Posted October 13, 2020 5 hours ago, Panelhead said: Is the 15C driver an upgrade in recent vintage Heritage speakers? Looked at Parts Express and they show in stock. Reasonable too. Always interested in improvements. But extremely satisfied with as is. Klipsch use to, and may still do, use Eminence speakers. If satisfied I would not change but the 15C would be a good replacement. Remember almost all companies will buy from the lowest bidder with same specifications if they can. Our Gov does and so did NASA with the space program. Complete speaker systems such as Klipsch buy drivers and speakers from makers of such products and then put their name on them. Speakers cannot read what name is put on them. They just make sound. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 13, 2020 Author Share Posted October 13, 2020 5 hours ago, RandyH000 said: dont forget the KLIPSCH k43 ----- More expensive and doesn't sound as good for home. Great in an MWM or SuperMWM, however. Quote Link to comment Share on other sites More sharing options...
ClaudeJ1 Posted October 13, 2020 Author Share Posted October 13, 2020 59 minutes ago, henry4841 said: Klipsch use to, and may still do, use Eminence speakers. If satisfied I would not change but the 15C would be a good replacement. Remember almost all companies will buy from the lowest bidder with same specifications if they can. Our Gov does and so did NASA with the space program. Complete speaker systems such as Klipsch buy drivers and speakers from makers of such products and then put their name on them. Speakers cannot read what name is put on them. They just make sound. The reason the Klipschorn beat the JBL Hartsfield (1957) and other Corner horns in the marketplace for over 73 years, is Paul didn't waste money where is wasn't needed. He understood what was important and didn't waste a dime on anything beyond what was necessary to reach the level of performance he felt was required. I remember a quote in his biography telling another engineer "What the hell do you need a Pentode in an amplifier for, all you need is ONE good watt to drive a Klipshorn (in the home)! He also believed you didn't need more than 17 db headroom, since all his personal recordings of a full symphony orchestra (several of which I heard back in 1985 at his home) was the basis for the dynamic range requirement. The Eminence 15C driver, is exactly what is required for a LaScala or a Peavey FH-1, both SHORT HORNS, that work well in the home or for high fidelity applications in the home. "Overkill design" was not PWK's philosophy, but lowering costs by higher purchasing volume and using a K-33 for as many products as possible to achieve that was a very wise thing to do. 2 1 Quote Link to comment Share on other sites More sharing options...
henry4841 Posted October 13, 2020 Share Posted October 13, 2020 57 minutes ago, ClaudeJ1 said: The reason the Klipschorn beat the JBL Hartsfield (1957) and other Corner horns in the marketplace for over 73 years, is Paul didn't waste money where is wasn't needed. He understood what was important and didn't waste a dime on anything beyond what was necessary to reach the level of performance he felt was required. Smart successful business man. Used his talents where it meant the most. There were excellent pro drivers and speakers in his time so why bother designing and making your own. Where is the Hartsfield and the other corner horns now? Still some old ones floating around but most have died long ago or are collecting dust in a garage. Klipschorn is still selling strong and the used market is strong as well. Small for a horn bass speaker with eye appeal as well. 1 Quote Link to comment Share on other sites More sharing options...
Dave A Posted October 13, 2020 Share Posted October 13, 2020 3 hours ago, ClaudeJ1 said: More expensive and doesn't sound as good for home. Great in an MWM or SuperMWM, however. And LSI's Quote Link to comment Share on other sites More sharing options...
Marvel Posted October 13, 2020 Share Posted October 13, 2020 On 10/9/2020 at 10:54 PM, OCBob said: Great thread!! Quick question.... Most everyone stating the The Kappa 15C is a upgrade are also using a subwoofer. I am not. Is the The Kappa 15C still a good choice? Has anyone ran the The Kappa 15A (8 ohm version) in a La Scala? Thanks everybody! Bob If you aren't using a sub, I would say no. I love my LS without a sub, but wouldn't want to lose any more of the bottom end. (I'm not going to hop on the 'everybody needs a sub' bandwagon. I get it, but many don't want an extra box in the room, for whatever reason). My LS have the mids dropped a little bit, making the bass sound a little more full. Between that and the sysergy between the amp and cabinet, I'm okay with it. Of course, YMMV. If you went with an 8 ohm, you would need to rework the crossover. Bruce 1 Quote Link to comment Share on other sites More sharing options...
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