Multi-channel mixer design
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From: Phil Allison on 8 Feb 2010 20:52 "Arfa Daily" > Agreed. Much domestic audio equipment these days uses rotary encoders > driving electronic volume controls ** Which has got nothing to do with a multi-channel mixing desks using 100 - 200 rotary pots - all of which need to have their setting obvious at a glance. > and, whilst they do of course sometimes give trouble, overall, I would say > a lot less than conventional pots, ** The cost of replacement is absurd compared to a simple pot. > Another very great advantage that they have over conventional pots, is > that they can have multiple functionality under software assignment. ** Fact is, they must have this feature to keep the total cost of a mixer from becoming insane. There is nothing wrong with the humble pot and linear fader, which unlike encoders give * stepless * adjustment of levels with low THD and noise at low cost. Good quality ones with cermet or plastic tracks have an enormously long life. ..... Phil
From: N_Cook on 9 Feb 2010 03:16 Phil Allison <phil_a(a)tpg.com.au> wrote in message news:7tbtejF24eU1(a)mid.individual.net... > > "Arfa Daily" > > > Agreed. Much domestic audio equipment these days uses rotary encoders > > driving electronic volume controls > > ** Which has got nothing to do with a multi-channel mixing desks using 100 - > 200 rotary pots - all of which need to have their setting obvious at a > glance. > > > > and, whilst they do of course sometimes give trouble, overall, I would say > > a lot less than conventional pots, > > > ** The cost of replacement is absurd compared to a simple pot. > > > > Another very great advantage that they have over conventional pots, is > > that they can have multiple functionality under software assignment. > > ** Fact is, they must have this feature to keep the total cost of a mixer > from becoming insane. > > There is nothing wrong with the humble pot and linear fader, which unlike > encoders give * stepless * adjustment of levels with low THD and noise at > low cost. > > Good quality ones with cermet or plastic tracks have an enormously long > life. > > > .... Phil > > > I agree that the resistive tracks are far more durable these days, compared to decades ago when it was often little more than a graphite pencil rubbed on a bit of phenolic board. Rare now to see a scratched track, even though they never seem to use graphite pips on the wiper, but a metal contact. -- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on http://diverse.4mg.com/index.htm
From: Dave Plowman (News) on 9 Feb 2010 04:58 In article <7tbtejF24eU1(a)mid.individual.net>, Phil Allison <phil_a(a)tpg.com.au> wrote: > > Agreed. Much domestic audio equipment these days uses rotary encoders > > driving electronic volume controls > ** Which has got nothing to do with a multi-channel mixing desks using > 100 - 200 rotary pots - all of which need to have their setting > obvious at a glance. Not so with the design I'm talking about which has 96 channels. Discrete faders for each channel, so about the same physical size as a 'conventional' desk. You have an assign panel where each channel is called up by pressing a button on the channel. The panel then shows the channel settings, and allows control over them. In a much more clear way than trying to read or find a pot some way off, on a big console. It does take some getting used to, though. A conventional console of that size would have upwards of 1000 pots. ;-) And of course switches which also wear out. -- *I speak fluent patriarchy but it's not my mother tongue Dave Plowman dave(a)davenoise.co.uk London SW To e-mail, change noise into sound.
From: Dave Plowman (News) on 9 Feb 2010 05:01 In article <7tbtejF24eU1(a)mid.individual.net>, Phil Allison <phil_a(a)tpg.com.au> wrote: > > Another very great advantage that they have over conventional pots, is > > that they can have multiple functionality under software assignment. > ** Fact is, they must have this feature to keep the total cost of a > mixer from becoming insane. With pro gear, reliability, longevity and reduced maintenance can be more important than initial cost. We're not talking Behringer here. ;-) -- *Not all men are annoying. Some are dead. Dave Plowman dave(a)davenoise.co.uk London SW To e-mail, change noise into sound.
From: N_Cook on 9 Feb 2010 05:12
Dave Plowman (News) <dave(a)davenoise.co.uk> wrote in message news:50e6d12a87dave(a)davenoise.co.uk... > In article <7tbtejF24eU1(a)mid.individual.net>, > Phil Allison <phil_a(a)tpg.com.au> wrote: > > > Another very great advantage that they have over conventional pots, is > > > that they can have multiple functionality under software assignment. > > > ** Fact is, they must have this feature to keep the total cost of a > > mixer from becoming insane. > > With pro gear, reliability, longevity and reduced maintenance can be more > important than initial cost. We're not talking Behringer here. ;-) > > -- > *Not all men are annoying. Some are dead. > > Dave Plowman dave(a)davenoise.co.uk London SW > To e-mail, change noise into sound. Is pro gear better protected from the effects of having beer etc spilt into it? |