Members roughtrade Posted May 6, 2009 Members Share Posted May 6, 2009 What am I listening for when I dial up the presence on an amp. The manual says ultra-high frequency control is the presence function. What sound does that relate to? Link to comment Share on other sites More sharing options...
Members BeëlzeM Posted May 6, 2009 Members Share Posted May 6, 2009 Like the name implies the presence of the higher frequencies. Link to comment Share on other sites More sharing options...
Members TornadoOfSouls Posted May 6, 2009 Members Share Posted May 6, 2009 Presence and Depth/Resonance controls are related to the power amplifier not your pre amplifier. Doug Roccaforte gave an awesome detailed description a few threads ago about it but in general you'll hear more high end sparkle with presence and more boomy lows with depth. Link to comment Share on other sites More sharing options...
Members BeëlzeM Posted May 6, 2009 Members Share Posted May 6, 2009 Presence and depth/resonance controls control the amount of the high and low frequencies to feed back through the phase inverter again. The Negative Feedback loop does this. Basically adds treble or bass in those frequencies in the poweramp. Link to comment Share on other sites More sharing options...
Members TornadoOfSouls Posted May 6, 2009 Members Share Posted May 6, 2009 It's rare these days, but there are a few circuits where the Presence control is not part of the poweramp. Usually it is, but not always. The idea is; presence is like moving the high frequencies forward. Kinda like a final mixer EQ. Thanks for the correction. Link to comment Share on other sites More sharing options...
Members roughtrade Posted May 6, 2009 Author Members Share Posted May 6, 2009 So I am turning up or down the higher harmonics of my pitches. If I turn them up the higher harmonics can be heard above the lower harmonics, if I turn the presence down the lower frequency harmonics are more apparent. Is this the idea? Or am I shaping the tone of my fundamental pitch? Link to comment Share on other sites More sharing options...
Members Dewysoss Posted May 6, 2009 Members Share Posted May 6, 2009 So I am turning up or down the higher harmonics of my pitches. If I turn them up the higher harmonics can be heard above the lower harmonics, if I turn the presence down the lower frequency harmonics are more apparent. Is this the idea? Or am I shaping the tone of my fundamental pitch? wat Link to comment Share on other sites More sharing options...
Members TornadoOfSouls Posted May 6, 2009 Members Share Posted May 6, 2009 wat ROfl Link to comment Share on other sites More sharing options...
Members BeëlzeM Posted May 6, 2009 Members Share Posted May 6, 2009 As I just pointed out, not all presence circuits are in the poweramp.The ones that are, are a "high pass" filter in the feedback loopdecoupling the loop at high frequencies. Thats what 90% of them do. Yeah okay. The traditional way as far as I know. You control the amount frequencies that feedback by the presence knob, the hi-pass filter. Link to comment Share on other sites More sharing options...
Members Uncle_Milton Posted May 6, 2009 Members Share Posted May 6, 2009 srsly, just play your guitar and have someone else turn the knob from 0-10 and back down The change in sounds you are hearing, that's what the presence does Link to comment Share on other sites More sharing options...
Members Dthraco Posted May 6, 2009 Members Share Posted May 6, 2009 Presence is the dial you use to brighten or darken the tone of your amp based upon the room you are playing in. If it's a dark room, more presence, if it's a bright room, less prescence. Link to comment Share on other sites More sharing options...
Members roughtrade Posted May 6, 2009 Author Members Share Posted May 6, 2009 Presence is the dial you use to brighten or darken the tone of your amp based upon the room you are playing in. If it's a dark room, more presence, if it's a bright room, less prescence.What about a White Room?I searched the forum and I think I found my answer, apparently it is like EQ but after the power stage and it adds a boost to frequencies above 4kHz or so.Thanks all, especially Roccaforte Amps! Link to comment Share on other sites More sharing options...
Members ejkennedy Posted May 6, 2009 Members Share Posted May 6, 2009 Presence is the dial you use to brighten or darken the tone of your amp based upon the room you are playing in. If it's a dark room, more presence, if it's a bright room, less prescence. THIS. The presence knob controls the amps PRESENCE. ^ That is the best explanation of the presence knob. The technical information does not serve a purpose to a player. Only a tech. Link to comment Share on other sites More sharing options...
Members Dthraco Posted May 6, 2009 Members Share Posted May 6, 2009 What about a White Room? With Black Curtains, Near the Station? Link to comment Share on other sites More sharing options...
Members roughtrade Posted May 6, 2009 Author Members Share Posted May 6, 2009 With Black Curtains, Near the Station? :thu:That is sweet presence:thu: Link to comment Share on other sites More sharing options...
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