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Post by Boomzilla on Sept 8, 2021 17:23:51 GMT -5
I sent the following to Klipsch technical support:
"I own the Klipsch R-12SW. The plate amplifier offers a variable low-pass filter. At what slope does the low-pass filter operate? First order (6dB / octave)? Second order (12dB / octave) or some higher order? This information is not included in the owner's manual.
Thanks - Glenn Young"
Today I received the following reply. I post it here without comment. Make of it what you will.
"Thank you for contacting Klipsch! Our sincerest apologies for the extremely delayed response, we've been experiencing substantial traffic increases.
As an engineering-driven company, Klipsch considers frequency graph measurements proprietary information for our consumer products and does not publish this information.
We do not have specific information on the slope of the low-pass crossovers of the amp inside the R-12SW."
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Post by adaboy on Sept 8, 2021 17:32:37 GMT -5
I sent the following to Klipsch technical support: "I own the Klipsch R-12SW. The plate amplifier offers a variable low-pass filter. At what slope does the low-pass filter operate? First order (6dB / octave)? Second order (12dB / octave) or some higher order? This information is not included in the owner's manual. Thanks - Glenn Young" Today I received the following reply. I post it here without comment. Make of it what you will. "Thank you for contacting Klipsch! Our sincerest apologies for the extremely delayed response, we've been experiencing substantial traffic increases. As an engineering-driven company, Klipsch considers frequency graph measurements proprietary information for our consumer products and does not publish this information. We do not have specific information on the slope of the low-pass crossovers of the amp inside the R-12SW." Can't fault them for that response. Every Tom, Richard, and Harry would be trying to copy, modify or swear they have a better way of doing things. Once you release it, it can't be undone. |
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Post by Jeremy on Sept 8, 2021 17:42:33 GMT -5
I rarely chime in here, but have to based on the response. What a JOKE of a company that will not give a customer a crossover slope. Either its a poorly built crossover or its a poorly built crossover. If you have an RTA or similar device, you could measure it and determine the average, or at least get close. If you have an industrial RTA, you could disconnect the woofer and measure the slope on the output from the amp.
Since it has a phase switch of 0-180, its probably 12dB/octave.
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Post by adaboy on Sept 8, 2021 17:43:29 GMT -5
I rarely chime in here, but have to based on the response. What a JOKE of a company that will not give a customer a crossover slope. Either its a poorly built crossover or its a poorly built crossover. If you have an RTA or similar device, you could measure it and determine the average, or at least get close. If you have an industrial RTA, you could disconnect the woofer and measure the slope on the output from the amp. Since it has a phase switch of 0-180, its probably 12dB/octave. Bose comes to mind... |
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Post by Jeremy on Sept 8, 2021 18:02:08 GMT -5
I rarely chime in here, but have to based on the response. What a JOKE of a company that will not give a customer a crossover slope. Either its a poorly built crossover or its a poorly built crossover. If you have an RTA or similar device, you could measure it and determine the average, or at least get close. If you have an industrial RTA, you could disconnect the woofer and measure the slope on the output from the amp. Since it has a phase switch of 0-180, its probably 12dB/octave. Bose comes to mind... You know what they say about bose... no highs, no lows, must be bose! |
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Post by adaboy on Sept 8, 2021 18:07:13 GMT -5
You know what they say about bose... no highs, no lows, must be bose! 😂😂😂😂 I love that saying! Now Bose Professional equipment is really good stuff! The linearray speakers are good but really pricey compared to the other companies. |
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Post by donh50 on Sept 8, 2021 21:37:48 GMT -5
Pretty lame... Anyone with REW or similar can plot the slope pretty easily, and it's hard to believe something like that is proprietary. I looked for reviews with plots but didn't find one after a few minutes. I did find the description from the Klipsch website:
"The Reference R-12SW subwoofer uncovers what you've been missing in your music, movies and games -- clean chest-thumping bass. The high performance subwoofer provides deep bass and placement flexibility thanks to its front firing driver and all digital amplifier."
I suspect the amplifier is class D, and a company so prideful of its engineers should talk to them before describing the amplifier as "all digital". Hint: The "D" does not stand for "digital".
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Post by garbulky on Sept 8, 2021 21:59:29 GMT -5
A proprietary secret. Sigh...
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Post by Soup on Sept 9, 2021 5:03:01 GMT -5
You have to love the standard email reply.................
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DYohn
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Posts: 18,353
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Post by DYohn on Sept 9, 2021 8:50:45 GMT -5
Klipsch changed when they became part of AudioVoxx.
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Post by 405x5 on Sept 9, 2021 9:12:42 GMT -5
Although relevant to tech buffs, that kind of data is the LAST thing the average end user is looking for.
When I have a technical issue that goes beyond the specs provided, I contact support live, directly for the product involved and get my answers via private email
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Post by donh50 on Sept 9, 2021 11:29:41 GMT -5
Setting aside how many users might need to know the crossover slopes for system integration (I suspect a fairly large number but likely not the average user, true), the issue here is contacting support did not yield an answer, or rather a "we do not want to tell you" answer for a commonly-specified parameter.
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Post by 405x5 on Sept 9, 2021 14:26:32 GMT -5
Klipsch changed when they became part of AudioVoxx. Yep and since they’ve been on the scene since 1946, I doubt they’ll be losing any sleep over this |
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DYohn
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Post by DYohn on Sept 9, 2021 14:49:16 GMT -5
Klipsch changed when they became part of AudioVoxx. Yep and since they’ve been on the scene since 1946, I doubt they’ll be losing any sleep over this I'm surprised there was an official reply. |
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