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Fulcrum Acoustic FA12, FA15 and FA28 (1 of 4)
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<blockquote data-quote="Rich Frembes" data-source="post: 49971" data-attributes="member: 432"><p>Re: Fulcrum Acoustic FA12, FA15 and FA28 (1 of 4)</p><p></p><p>Something to chew on...</p><p></p><p>Powersoft amps have 5.02 ms latency when using analog inputs and with no filters applied. I see their latest firmware update bumps this latency up to ~6 ms when AES3 inputs are used; analog inputs remain the same. This throws a bit of a monkey wrench into Jason's idea of using AES3 inputs to reduce latency. :?~:-?~:???: Loading, for example, our CX896 preset adds 1.56 ms latency.</p><p></p><p>Crown I-Tech HD amps, using analog inputs and no filters, have 1.02 ms latency at 96 kHz SR and 1.66 ms at 48 kHz SR. Loading the aforementioned CX896 preset adds 3.72 ms at 96 kHz and 2.39 ms at 48 kHz. (I used the CX896 preset example because I happened to have a 48k Crown preset readily available).</p><p></p><p></p><p></p><p>The I-Tech HD amps save the sample rate with a preset. That was smart of them. We have seen a customer get burned by using a 48k FIR in a popular drag-and-drop installation processor that was set to 96k SR. They couldn't understand why we would publish a preset that sounded and measured so poorly. Bet they won't make that mistake again! Still, to Dave's point it would be nice if there was a warning that something was amiss.</p></blockquote><p></p>
[QUOTE="Rich Frembes, post: 49971, member: 432"] Re: Fulcrum Acoustic FA12, FA15 and FA28 (1 of 4) Something to chew on... Powersoft amps have 5.02 ms latency when using analog inputs and with no filters applied. I see their latest firmware update bumps this latency up to ~6 ms when AES3 inputs are used; analog inputs remain the same. This throws a bit of a monkey wrench into Jason's idea of using AES3 inputs to reduce latency. :?~:-?~:???: Loading, for example, our CX896 preset adds 1.56 ms latency. Crown I-Tech HD amps, using analog inputs and no filters, have 1.02 ms latency at 96 kHz SR and 1.66 ms at 48 kHz SR. Loading the aforementioned CX896 preset adds 3.72 ms at 96 kHz and 2.39 ms at 48 kHz. (I used the CX896 preset example because I happened to have a 48k Crown preset readily available). The I-Tech HD amps save the sample rate with a preset. That was smart of them. We have seen a customer get burned by using a 48k FIR in a popular drag-and-drop installation processor that was set to 96k SR. They couldn't understand why we would publish a preset that sounded and measured so poorly. Bet they won't make that mistake again! Still, to Dave's point it would be nice if there was a warning that something was amiss. [/QUOTE]
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