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<blockquote data-quote="Brad Weber" data-source="post: 89819" data-attributes="member: 114">Re: Kramer VP-728 vs. VP-438?&nbsp; Other switchers I should consider?I agree with Steve and personally consider a unit with a single scaler a switcher/scaler.&nbsp; The actual switching between inputs occurs before the scaler so the unit may fade through black or freeze the last frame while the scaler input switches then switch back to the live scaler output.&nbsp; In comparison, I view a seamless switcher as having two scalers with the switching happening after the scalers.&nbsp; With a seamless switcher there is no freeze or fade through black required since both signals are already scaled the same and the switch can be &#039;live&#039;.&nbsp; With those definitions both switcher/scalers and seamless switchers provide a continuous, scaled Program output, the difference is primarily in how they switch between inputs, &#039;live&#039; versus fade-thru-black/freeze.&nbsp; One other difference is that a seamless switcher also usually provides a continuous, scaled Preview output in addition to the Program output.</blockquote>

[QUOTE="Brad Weber, post: 89819, member: 114"] Re: Kramer VP-728 vs. VP-438? Other switchers I should consider? I agree with Steve and personally consider a unit with a single scaler a switcher/scaler. The actual switching between inputs occurs before the scaler so the unit may fade through black or freeze the last frame while the scaler input switches then switch back to the live scaler output. In comparison, I view a seamless switcher as having two scalers with the switching happening after the scalers. With a seamless switcher there is no freeze or fade through black required since both signals are already scaled the same and the switch can be 'live'. With those definitions both switcher/scalers and seamless switchers provide a continuous, scaled Program output, the difference is primarily in how they switch between inputs, 'live' versus fade-thru-black/freeze. One other difference is that a seamless switcher also usually provides a continuous, scaled Preview output in addition to the Program output. [/QUOTE]

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