• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

Offer to fund driver purchase for FAST design with ASR rigor

OP
Ilkless

Ilkless

Major Contributor
Forum Donor
Joined
Jan 26, 2019
Messages
1,757
Likes
3,437
Location
Singapore
I'm using the GRS PT6816-8, which reputedly performs similarly to the BG but with different materials. It appears to be a clone/knockoff. If it falls short, I'll return it and get the BG. I haven't really looked into the Alpair 12PW. Might it have any significant advantages?


It's the Alpair 12P, but designed to be used with a tweeter, with more midbass capability and a smooth rolloff on the high end.
 

Wolf

Addicted to Fun and Learning
Joined
Nov 21, 2020
Messages
557
Likes
589
Location
Indiana
Not convinced DIY coaxs are worth the additional trouble of a 3-way XO and cost, given how tweeter response is modulated by the midrange cone's movement, and the roughness in the top octave. Having dealt with a widebander that rolled off from 5kHz (Mark Audio CHP-70) and finding it quite pleasant, IMO a smooth rolloff (even if steep) above 10kHz is less trouble than wrangling with a coax.



Tangband makes some of the coolest looking drivers out there. The nulls at 8 and 10kHz are concerning to me.
I'll be measuring a pair in the near future, so stay tuned....
 
OP
Ilkless

Ilkless

Major Contributor
Forum Donor
Joined
Jan 26, 2019
Messages
1,757
Likes
3,437
Location
Singapore
I'm also curious about MarkAudio's rather Byzantine driver break-in regimen. I intend to follow it. Is there something unusual about the design or materials used that calls for such specific procedures? I'm skeptical but I'm left with the impression that I'd be quite remiss if I didn't follow it to the letter.


Mark Audio was founded by a materials engineer who's obsessed with the pseudoscientific, intuition-driven notion that any microscopic change in the material of the speaker's moving parts will definitely lead to a significant, audible difference in the sound output even when no real change is seen when we measure the soundwaves directly. So, there's much to be skeptical about it.
 

DavidMcRoy

Addicted to Fun and Learning
Joined
Jul 10, 2018
Messages
574
Likes
990
Mark Audio was founded by a materials engineer who's obsessed with the pseudoscientific, intuition-driven notion that any microscopic change in the material of the speaker's moving parts will definitely lead to a significant, audible difference in the sound output even when no real change is seen when we measure the soundwaves directly. So, there's much to be skeptical about it.
Well, THAT actually makes sense.
 

D!sco

Senior Member
Joined
Jun 16, 2021
Messages
483
Likes
381
I never find what I want on the Tang Band site, but I always find something I didn't know I wanted
Screen Shot 2023-03-10 at 08.43.12.png
 
OP
Ilkless

Ilkless

Major Contributor
Forum Donor
Joined
Jan 26, 2019
Messages
1,757
Likes
3,437
Location
Singapore
Well, THAT actually makes sense.

Yes, measurable structural/material changes at the driver component level does not necessarily translate to consistently measurable differences in the sound waves emitted by the driver (given the many sources of variance in the measurement device and environment). And even if there were differences, they are not necessarily audible. And even if audible, not necessarily preferable.

Lots of leaps of logic taken. Mark Audio uses the founder's materials science background to assert that the drivers must sound greatly different even when the emitted sound waves do not see any real change.
 

DavidMcRoy

Addicted to Fun and Learning
Joined
Jul 10, 2018
Messages
574
Likes
990
Yes, measurable structural/material changes at the driver component level does not necessarily translate to consistently measurable differences in the sound waves emitted by the driver (given the many sources of variance in the measurement device and environment). And even if there were differences, they are not necessarily audible. And even if audible, not necessarily preferable.

Lots of leaps of logic taken. Mark Audio uses the founder's materials science background to assert that the drivers must sound greatly different even when the emitted sound waves do not see any real change.
Sounds like molecular clairvoyance or some such.
 
Top Bottom