How can T-1Ds lose bass? - andyr - Planar Speaker Asylum

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How can T-1Ds lose bass?

I took my mic and REW over to a friend's place the other day, to check his FR was acceptable.

He runs T-1Ds, actively driven using a miniDSP 8x8 to provide the 6dB XO and some room correction. He's using a pair of 150w ss stereo amps on the bass panels (one amp channel driving each bass panel) plus an additional stereo amp for the tweeter panels.

He's nearly blind - so I am his "tech specialist" ... I had set up the system a few years ago and, having improved my use of REW on my own system in the meantime, thought I might have another look at his ... to see whether I could improve his FR in any way.

When I did the first sweep, I was surprised to see there was a pronounced droop in the FR from about 600Hz downwards. I was able to correct this using EQ in the miniDSP plug-in ... but I was wondering whether anything could be wrong with the T-1Ds, to have caused this loss of the lower frequencies produced by the bass panels?

Any suggestions, anybody?

All 6 panels of the T-1Ds were re-wired by the Oz importer about 8 years ago - so I doubt that any delam has occurred.

Andy

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Topic - How can T-1Ds lose bass? - andyr 18:45:31 07/25/22 (15)

RE: How can T-1Ds lose bass? - neolith 12:38:55 07/29/22 (2)

RE: How can T-1Ds lose bass? - andyr 14:23:38 07/29/22 (1)

RE: How can T-1Ds lose bass? - Roger Gustavsson 00:51:43 07/30/22 (0)

RE: How can T-1Ds lose bass? - grantv 07:18:21 07/27/22 (1)

RE: How can T-1Ds lose bass? - Roger Gustavsson 08:40:01 07/27/22 (0)

RE: How can T-1Ds lose bass? - Roger Gustavsson 03:21:31 07/26/22 (9)

RE: How can T-1Ds lose bass? - andyr 04:50:16 07/26/22 (8)

RE: How can T-1Ds lose bass? - Roger Gustavsson 05:33:07 07/26/22 (7)

RE: "other slopes and frequencies" ... - andyr 17:42:18 07/26/22 (6)

RE: "other slopes and frequencies" ... - Roger Gustavsson 00:42:51 07/27/22 (5)

RE: Yes there is, Roger - the same bass! nt - andyr 02:39:01 07/27/22 (4)

RE: Yes there is, Roger - the same bass! nt - Roger Gustavsson 03:20:46 07/27/22 (3)

RE: Rolled off. nt - andyr 14:42:39 07/27/22 (2)

RE: Rolled off. nt - Roger Gustavsson 23:40:03 07/27/22 (1)

RE: Rolled off. nt - Roger Gustavsson 00:41:24 07/28/22 (0)

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