Mini models of the SDA SRS. i need help with crossovers.
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Great job. One day there will be a set of Shorty 1.2 TL's with 1-piece faceplates in that same fashion. I'm a fan.Don't take experimental gene therapies from known eugenicists.
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Sure are putting a lot of work into those. I hope they turn out ok.
What is all the black stuff inside the cabinets?Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
The cabinets look really narrow (depth). Did you do calculations for frequency response of the box and PR? Where's the bracing? Just wondering.
H9"Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | Galion TS P75 Pre | Holo Audio Cyan 2 Dac | MIT Shotgun S1 | Puritan Audio PSM136 Pwr Condtioner & Classic PC's | Legend L600 | Roon Nucleus 1 w/LPS - Tubes add soul! -
Sure are putting a lot of work into those. I hope they turn out ok.
What is all the black stuff inside the cabinets?
It”s 1 layer of butyl. Sound dampening
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The cabinets look really narrow (depth). Did you do calculations for frequency response of the box and PR? Where's the bracing? Just wondering.
H9
Yes the calculations has been done. With ”exact” spare room for filters. If bracing is needed, i Will add some later.
The plan right now is to use them as a 2.1 system, paired with a 8-10’ sub.
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Lerjebrink wrote: »
That's what I thought. Unfortunately, your speakers will sound lifeless with that material in them.
Rip all of it out and use polyfill.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Lerjebrink wrote: »
If it is a few mils thick butyl rubber, it will help with cabinet vibes/resonance.
You will probably have to brace a few spots in the middle line to really mitigate cabinet vibes just like the original 1.2'sDon't take experimental gene therapies from known eugenicists. -
A few mils??? You need to look closer. Heck, he even stated, one inch.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
Unless my eyes are painted on, it desn't look like 1"to me,correct me if I'm wrong ,the comment stated ,1 layer of butyl rubber.
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You are correct, 1 layer. Still a lot thicker than a few mils.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
So basically Dynamat without the aluminum skin. Just as reflective of airborne sound waves as MDF (probably more) but will help dampen cabinet resonances some.George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
Lerjebrink wrote: »
That's what I thought. Unfortunately, your speakers will sound lifeless with that material in them.
Rip all of it out and use polyfill.
No. In this case you are wrong. My friend made a pair of JBL minis, where i 3D printed a bunch of parts to him. I heard these speakers with and without this 3mm butyl sheets. It made very much difference, in a really good way.
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Maybe, maybe not. Completely different speaker designs.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk
