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Speaker Asylum: You're kidding, right? by E-Stat General speaker questions for audio and home theater. |
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In Reply to: Re: Keep believing what? posted by Ozzie on February 5, 2007 at 10:24:07:
Your original statement: Including another octave at the bottom and the 20k extension you mention.Another octave below 60 hz is 30 hz. You doubt that is attainable with a pair of 2200 square inch stats? You may choose to not accept that which is easily done. Likewise, there are numerous planars that easily achieve 20k.
You said that the bass capability is equivalent to some 60 - 15 inch woofers. Square inches maybe. Cubic, no.
"Capability" is your word not mine. I referred to surface area in context with the Majestic array. That's how the math works. The surface area of a 15" driver is about 177 square inches. What else is there for expressing the surface area of a driver other than square inches? Cubic displacement of what?
I was insinuating that you may have come up with your own correction curve
Assuming (incorrectly) rather than asking. Whatever. I found them on another website where curves were generated for the three different generations of the Radio Shack SPL meter.
Scroll down for DMF's curves for the "Current digital meter" which is more accurate at the bottom than earlier versions. Note that one must ADD to the recorded figure for the correction. The RS unit understates low bass output, not overstates.
The curved driver surface was designed to offset high frequency beaming.
Actually, the driver surface is NOT curved. Each facet has a flat profile. It is the fact there are seven facets angled differently that opens up the dispersion to 90 degrees. Off axis you are directly facing one of those seven facets.
Hey, if you do get a true 20 Hz out of them, you are very lucky. Or fibbing.
You're confused again. I never mentioned the 20 hz performance. It is 10 db down over 30 hz. The U-1 response in my room is flat down to 25 hz (actually with a bit of a rise). Below that, the response rolls off considerably.
rw
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Topic - Please excuse my trivial question on speakers design. - beppe61 02:58:16 02/1/07 ( 74)
- Re: Please excuse my trivial question on speakers design. - morricab 06:15:26 02/2/07 ( 3)
- Re: Please excuse my trivial question on speakers design. - beppe61 10:33:51 02/2/07 ( 2)
- I think you're the ultimate troll - suits_me 19:57:24 02/3/07 ( 0)
- Re: Please excuse my trivial question on speakers design. - morricab 14:46:13 02/3/07 ( 0)
Re: Please excuse my trivial question on speakers design. - hahax@verizon.net 20:28:07 02/1/07 ( 1)
- Re: Please excuse my trivial question on speakers design. - beppe61 10:37:20 02/2/07 ( 0)
You almost havie it backwords... - RGA 17:42:49 02/1/07 ( 36)
- Strongly disagree. - jsm 11:44:56 02/2/07 ( 4)
- Re: Strongly disagree. - RGA 18:42:15 02/2/07 ( 3)
- Ah, but a smooth frequency response does not guarantee good classical music performance. - jsm 12:33:13 02/5/07 ( 0)
- Re: Strongly disagree. - morricab 14:49:15 02/3/07 ( 1)
- Re: Strongly disagree. - DRCope 10:46:55 02/5/07 ( 0)
Re: You almost havie it backwords... - JimL 19:58:22 02/1/07 ( 30)
- Re: You almost havie it backwords... - RGA 03:00:32 02/2/07 ( 23)
- You have to have some understanding of the measurements . . . - Pat D 07:32:00 02/2/07 ( 22)
- Re: You have to have some understanding of the measurements . . . - RGA 18:44:15 02/2/07 ( 6)
- Re: You have to have some understanding of the measurements . . . - Pat D 05:34:46 02/3/07 ( 5)
- Re: You have to have some understanding of the measurements . . . - RGA 05:55:25 02/3/07 ( 4)
- Re: You have to have some understanding of the measurements . . . - Pat D 07:15:47 02/3/07 ( 3)
- Re: You have to have some understanding of the measurements . . . - RGA 08:17:48 02/3/07 ( 2)
- Re: You have to have some understanding of the measurements . . . - Pat D 09:14:42 02/3/07 ( 1)
- Re: You have to have some understanding of the measurements . . . - RGA 17:18:26 02/3/07 ( 0)
- Re: You have to have some understanding of the measurements . . . - RGA 18:37:58 02/2/07 ( 0)
- Interestingly . . . - markrohr 14:36:34 02/2/07 ( 2)
- Re: Interestingly . . . - Pat D 18:07:38 02/2/07 ( 1)
- Re: Interestingly . . . - morricab 14:53:57 02/3/07 ( 0)
Thank you very much Sir for the very interesting links. - beppe61 10:54:01 02/2/07 ( 10)
- Re: Thank you very much Sir for the very interesting links. - Pat D 17:55:31 02/2/07 ( 9)
- Re: Thank you very much Sir for the very interesting links. - RGA 19:14:08 02/2/07 ( 8)
- Re: Thank you very much Sir for the very interesting links. - morricab 14:56:21 02/3/07 ( 0)
- Errrr . . . - Pat D 06:02:26 02/3/07 ( 6)
- Re: Errrr . . . - RGA 08:44:43 02/3/07 ( 5)
- Yeah, yeah, we know you don't like Canadian speakers, Harman International speakers, etc. - Pat D 10:17:20 02/3/07 ( 4)
- Re: Yeah, yeah, we know you don't like Canadian speakers, Harman International speakers, etc. - RGA 17:41:31 02/3/07 ( 3)
- Re: Yeah, yeah, we know you don't like Canadian speakers, Harman International speakers, etc. - Pat D 19:04:00 02/3/07 ( 2)
- Re: Yeah, yeah, we know you don't like Canadian speakers, Harman International speakers, etc. - RGA 19:55:47 02/3/07 ( 1)
- Re: Yeah, yeah, we know you don't like Canadian speakers, Harman International speakers, etc. - Pat D 04:22:14 02/4/07 ( 0)
Re: You almost havie it backwords... - longtimequadowner 23:50:26 02/1/07 ( 5)
- The EQ illustrates my point. - RGA 03:33:25 02/2/07 ( 1)
- Re: The EQ illustrates my point. - beppe61 10:59:07 02/2/07 ( 0)
" Take a look at a square wave passed through a quad - it's square! " - beppe61 00:13:14 02/2/07 ( 2)
- Actually - longtimequadowner 01:03:30 02/2/07 ( 1)
- Re: Actually - beppe61 10:46:26 02/2/07 ( 0)
Well, some people swear this speaker sounds great. - The Real Dick Hertz 16:53:11 02/1/07 ( 3)
- Nevertheless distortion is very low ... could this be instead .. - beppe61 11:09:12 02/2/07 ( 0)
Re: Well, some people swear this speaker sounds great. - beppe61 11:02:22 02/2/07 ( 0)
Wow!! - Jayme 17:21:08 02/1/07 ( 0)
Flat response is only the beginning. - richardl 15:37:31 02/1/07 ( 1)
- Re: Flat response is only the beginning. - beppe61 11:12:03 02/2/07 ( 0)
This may help you - Schu 14:47:41 02/1/07 ( 1)
- Re: This may help you - beppe61 10:35:15 02/2/07 ( 0)
A flat frequency response will never sound good -- it's not a goal - Richard BassNut Greene 08:54:53 02/1/07 ( 2)
- Why not tilted down ever so slightly? - Ozzie 10:57:17 02/2/07 ( 1)
Re: A flat frequency response will never sound good -- it's not a goal - beppe61 11:14:46 02/1/07 ( 0)
One drive unit playing in uniform manner from 60-18kHz is a tall order - Gregm 08:45:20 02/1/07 ( 7)
- And achievable with electrostats :) - E-Stat 16:38:12 02/1/07 ( 5)
- Keep believing that E-Stat. p - Ozzie 11:12:22 02/2/07 ( 4)
- Keep believing what? - E-Stat 19:46:49 02/2/07 ( 3)
- Re: Keep believing what? - Ozzie 10:24:07 02/5/07 ( 2)
- You're kidding, right? - E-Stat 02/5/07 12:25:25 02/5/07 ( 1)
- Yo - Ozzie, we've had this discussion before - E-Stat 15:14:47 02/5/07 ( 0)
Re: One drive unit playing in uniform manner from 60-18kHz is a tall order - beppe61 10:48:52 02/1/07 ( 0)
Re: Please excuse my trivial question on speakers design. - Schu 05:42:52 02/1/07 ( 7)
- Re: Please excuse my trivial question on speakers design. - beppe61 07:24:00 02/1/07 ( 6)
- Re: Please excuse my trivial question on speakers design. - Schu 08:31:42 02/1/07 ( 3)
- Re: Please excuse my trivial question on speakers design. - beppe61 10:54:42 02/1/07 ( 2)
- Re: Please excuse my trivial question on speakers design. - Schu 11:02:00 02/1/07 ( 1)
- Re: Please excuse my trivial question on speakers design. - beppe61 13:30:11 02/1/07 ( 0)
- Re: Please excuse my trivial question on speakers design. - STUART 08:25:19 02/1/07 ( 1)
- Re: Please excuse my trivial question on speakers design. - beppe61 10:59:24 02/1/07 ( 0)
Suppose... - RobertG 05:20:37 02/1/07 ( 3)
- Re: Suppose... - beppe61 07:39:24 02/1/07 ( 2)
- So you said "low distortion". - sser2 11:51:31 02/1/07 ( 1)
- Re: So you said "low distortion". - beppe61 13:36:30 02/1/07 ( 0)