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<blockquote data-quote="Albe Kohler" data-source="post: 213414" data-attributes="member: 13673"><p>Let me heat this thread up a bit <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />.</p><p>Ok so I just ordered a Crown 4-3500HD (it has some FIR on board) for a good price, which I'm going to use to drive just the 2x12" B&Cs in each of four PM60s. I'm currently a bit in regret-mode, but not sure if for a good reason. While I'm just starting to get a grip on FIR I do understand that I need to (and want to) use it for squeezing the best sound out of the tops. First I wanted to get a Lake LM26 and 2xCrown I-Tech 6000 for this, so I can have the Lake as a central brain for doing FIR, also for the Coax drivers, at least for 2 with the 6 outputs of the Lake LM26.</p><p>But now there are a couple of questions, the first one regarding TDA and the second one FIR for my use case:</p><p></p><p>1) Can I transfer optimized FIR results from TDA somehow to this Crown amp? Or do I have to import the correction curve into a DSP engine, for example APL1 first and can then manually transfer FIR parameter that I somehow obtain from the APL1? I have to admit I'm not sure how exactly FIR parameters look like, I'm not there, yet.</p><p>Or in other words, can TDA help me to find the right FIR settings for my Crown.</p><p></p><p>2) Is it a valid idea to just use FIR via the amp on the 12"s and not at all on the Coax's, when aiming for best PM60 sound or would I miss out?</p></blockquote><p></p>
[QUOTE="Albe Kohler, post: 213414, member: 13673"] Let me heat this thread up a bit :-). Ok so I just ordered a Crown 4-3500HD (it has some FIR on board) for a good price, which I'm going to use to drive just the 2x12" B&Cs in each of four PM60s. I'm currently a bit in regret-mode, but not sure if for a good reason. While I'm just starting to get a grip on FIR I do understand that I need to (and want to) use it for squeezing the best sound out of the tops. First I wanted to get a Lake LM26 and 2xCrown I-Tech 6000 for this, so I can have the Lake as a central brain for doing FIR, also for the Coax drivers, at least for 2 with the 6 outputs of the Lake LM26. But now there are a couple of questions, the first one regarding TDA and the second one FIR for my use case: 1) Can I transfer optimized FIR results from TDA somehow to this Crown amp? Or do I have to import the correction curve into a DSP engine, for example APL1 first and can then manually transfer FIR parameter that I somehow obtain from the APL1? I have to admit I'm not sure how exactly FIR parameters look like, I'm not there, yet. Or in other words, can TDA help me to find the right FIR settings for my Crown. 2) Is it a valid idea to just use FIR via the amp on the 12"s and not at all on the Coax's, when aiming for best PM60 sound or would I miss out? [/QUOTE]
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