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New planar drivers at Parts Express
New planar drivers at Parts Express
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Old 18th September 2020, 01:36 AM   #1
studiotech is offline studiotech  United States
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Default New planar drivers at Parts Express

PE seems to have a full line of planar drivers just released.

GRS PT2522-4 3-1/2" Planar Tweeter 4 Ohm

GRS PT2522C-8 3-1/2" Planar Tweeter with Back Cup 8 Ohm

GRS PT6816-8 8" Planar Slim Tweeter 8 Ohm

GRS PT6825-8 8" Planar Mid/Tweeter 8 Ohm

Let's hope they have better consistency than the standard Chinese BG knock-offs.

Greg
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Old 18th September 2020, 02:20 AM   #2
sumotan is offline sumotan  Indonesia
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Yummy sensitivity but tough to find woofers to match unless use many but that will also create new problems I believe.
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Old 18th September 2020, 02:40 PM   #3
studiotech is offline studiotech  United States
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GRS PT5010-8 10" Planar Mid/Tweeter 8 Ohm
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Old 18th September 2020, 04:05 PM   #4
ErnieM is offline ErnieM  United States
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The price is right. I don't think consistency is going to be very good though. At least they have a generous return policy.

Do you still have those dipoles you made a few years ago? Those looked killer.
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Old 18th September 2020, 06:42 PM   #5
studiotech is offline studiotech  United States
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I sure do! Thx.
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Old 19th September 2020, 01:36 AM   #6
sumotan is offline sumotan  Indonesia
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I've always wondered how one maintains consistency when using multiple drivers in array or line source. Even if one can match them during assembly after some time surely there'll be variations among drivers right or does our ears adjust to the sound ?

Thks
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Old 19th September 2020, 03:26 AM   #7
bansuri is offline bansuri  Italy
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Unfortunately the sensitivity is low, the spec sheets show values which are only present at higher frequencies, the 8" mid/high has 85dB/W at 1000Hz, so at 35W you reach 100dB.

Last edited by bansuri; 19th September 2020 at 03:45 AM.
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Old 19th September 2020, 04:19 AM   #8
kazap is offline kazap
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The 8" "slim" tweeter has better SPL on the spec sheet then the "mid/tweeter" under 2kHz


https://www.parts-express.com/pedocs...spec-sheet.pdf
https://www.parts-express.com/pedocs...spec-sheet.pdf


That seems counter-intuitive? I would assume a mid range would have more grunt then a tweeter under 2kHz. Any explanation?

Last edited by kazap; 19th September 2020 at 04:22 AM.
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Old 19th September 2020, 04:27 AM   #9
kazap is offline kazap
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Quote:
Originally Posted by studiotech View Post
PE seems to have a full line of planar drivers just released.......g

10" Planar Mid/Tweeter
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Old 19th September 2020, 01:03 PM   #10
OllBoll is offline OllBoll  Sweden
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Quote:
Originally Posted by kazap View Post
The 8" "slim" tweeter has better SPL on the spec sheet then the "mid/tweeter" under 2kHz


https://www.parts-express.com/pedocs...spec-sheet.pdf
https://www.parts-express.com/pedocs...spec-sheet.pdf


That seems counter-intuitive? I would assume a mid range would have more grunt then a tweeter under 2kHz. Any explanation?
Probably a lighter diaphragm -> higher fs thus having higher efficiency but less low frequency output below fs. Same reasons tweeters usually has a higher efficiency than woofers even though the woofer has much more surface area.
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