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Lectrosonics Quadra Digital IEM Review
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<blockquote data-quote="Langston Holland" data-source="post: 33412" data-attributes="member: 171"><p>Re: Lectrosonics Quadra Digital IEM Review</p><p></p><p></p><p></p><p>Whoever "we" is is too kind! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> I really did mean to omit the DAC1 digital to analog converter in my latency spec for the Quadra system - and I was wrong to do so. When I removed the DAC1 from the test rig I just went on autopilot and removed it's contribution to the latency spec, which is fine if human beings have AES3 inputs, but, alas, they do not. To keep apples to apples, I needed to subtract the latency of converting the output of my digital source (console, etc) into analog in order to make a realistic comparison of the Quadra's digital and analog input options. AFAIK, all competing systems only have analog inputs at this time. That means that those systems also experience the added latency of a D/A conversion stage when a digital console is involved. Once corrected, the Quadra should have the ability to achieve a latency less than half that of any other analog IEM when driven by a digital console.</p><p></p><p></p><p></p><p>If you mean analog input of the Quadra transmitter to analog output of the Quadra beltpack receiver, I measured 0.95ms. Precisely (1) hair. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>PS: Please make 2 channel beltpacks with a single knob that are compatible with this system as a less expensive option to the 4 channel beltpacks. That would be very, very persuasive.</p></blockquote><p></p>
[QUOTE="Langston Holland, post: 33412, member: 171"] Re: Lectrosonics Quadra Digital IEM Review Whoever "we" is is too kind! :) I really did mean to omit the DAC1 digital to analog converter in my latency spec for the Quadra system - and I was wrong to do so. When I removed the DAC1 from the test rig I just went on autopilot and removed it's contribution to the latency spec, which is fine if human beings have AES3 inputs, but, alas, they do not. To keep apples to apples, I needed to subtract the latency of converting the output of my digital source (console, etc) into analog in order to make a realistic comparison of the Quadra's digital and analog input options. AFAIK, all competing systems only have analog inputs at this time. That means that those systems also experience the added latency of a D/A conversion stage when a digital console is involved. Once corrected, the Quadra should have the ability to achieve a latency less than half that of any other analog IEM when driven by a digital console. If you mean analog input of the Quadra transmitter to analog output of the Quadra beltpack receiver, I measured 0.95ms. Precisely (1) hair. :) PS: Please make 2 channel beltpacks with a single knob that are compatible with this system as a less expensive option to the 4 channel beltpacks. That would be very, very persuasive. [/QUOTE]
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