Churchill, Guy wrote: >Correct ... without a LPF the sub will be amplifying full range, not >an ideal situation, but OK. The amplifier with amplify a full range signal causing it more stress than required, and it'll generate far more heat than it needs to. The driver in the box won't reproduce full range, it will naturally roll off at some point, if it's a sub driver that will probably be fairly low (but certainly not low enough for sub use). >*Almost* all Powered subs have their own >variable LPF. (normally from 40-120Hz) Some THX subs are permanently >fixed at 80Hz, most will have a phase switch (some have a variable phase), >some allow line-in only (low level), others have speaker in (high level), >many have both. Always interested me, what sort of audio quality do you get from a speaker level inputs on these things? Anyway on a more MD related note, Has anyone with a sony R90 noticed if they skip easerly when placed vertically (Head phone jack socket pointing skyward) and placed an a surface with a fair amount of vibration (my case in the car). I only noticed this after dropping the thing down the stairs... just wondering if this has had an effect on it or they just do that anyway.... --Matt [EMAIL PROTECTED] ----------------------------------------------------------------- To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
