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Critic's Corner Discuss a review. Provide constructive feedback. Talk to the industry. |
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Critic's Corner Discuss a review. Provide constructive feedback. Talk to the industry. |
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In Reply to: Great example of thoughtful well written review posted by ruxtonvet on October 21, 2014 at 19:48:38:
JA admits it was "hard to get a handle" on this speaker's measured performance. The open-backed midrange driver has such a different radiation pattern (180 degrees out-of-phase at 180 degrees off-axis, deep cancellation at 90 degrees off-axis) from conventional monopole mounting that quasi-anechoic FR measurements cannot begin to describe how it will behave in a real-world listening room. The in-room-from-the-listening-seat FR curves look a lot better than the quasi-anechoic, but this is with optimized positioning in one particular room. Move the speakers around in the room, or set them up in a different room, and the curves will vary significantly.
This is always an issue with dipoles, and perhaps one of the reasons Magnepan refuses to submit review samples to Stereophile for measurements.
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Follow Ups
- Illustrates the challenges of measuring dipole speaker performance - Brian H P 10:29:40 10/22/14 (7)
- RE: Illustrates the challenges of measuring dipole speaker performance - morricab 14:24:27 10/23/14 (6)
- Magnepan has subsequently changed its policy - E-Stat 14:40:12 10/24/14 (5)
- And lookit the first page of the measurements - Brian H P 15:35:31 10/27/14 (4)
- RE: And lookit the first page of the measurements - John Atkinson 16:41:12 10/27/14 (2)
- How to measure a really big speaker - Brian H P 10:09:18 10/29/14 (1)
- RE: How to measure a really big speaker - BubbaMike 16:22:45 11/14/14 (0)
- Therein lies the challenge... - E-Stat 15:56:08 10/27/14 (0)
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