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My New Magnepan 1.7i's sound dull and lifeless on the top end...why?

First time Magnepan owner - 5  days old 100+ burn-in hours on them
Associated Equipment:
-Denafrips Terminator Plus
-Holo Audio May KTE version
-Pass Labs X22 Pre-amp
-PrimaLuna EVO 400 Pre-amp
-Pass Labs XA100.8 Monos
-PrimaLuna EVO 400 Monos
-AntiCables interconnects and speaker cables
-Stock tweeter attenuator jumper replaced with AntiCables level 5 spade jumpers on the 1.7i's

My spectrum analyzer indicates both speakers highs are falling off beginning at 1.25K and are 9db down from 2.5K on
Been playing around with speaker placement and room treatments for 2 days now without any remediation. What am I missing? Suggestions appreciated.
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Showing 1 response by kmmd

kmmd's avatar
kmmd
73 posts
 

OP, this will answer some questions:


I’ve been a loyal Maggie owner for decades using 10s, 1.6s and 3.6s as my main speakers. I even bi-amped my 3.6s using a Pass Labs XVR -1 crossover. I moved on to YG Acoustics and couldn’t be happier. The YG’s are more accurate, neutral, detailed and musical.

I have no affiliation with GR, but found the video and measurements to be informative.

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