[sdiy] help in finding PSU for A&H Mod2 channel strips?
Todd Sines
sines_tr at scale.gs
Mon Jan 5 15:26:12 CET 2009
Hi,
[sending this again, didn't appear to go through first time]
my first time trying to rack some channel strips. I have 2 Allen &
Heath Mod2 channel strips that require +/-24V power at 1 A, running on
120v. I'm additionally interested in adding some transformers [Jensen,
Lundahl, Sowter?] on the input path to use as a mic pre. Should I
worry about Phantom Power... and how difficult is this and what other
power requirements will this need? I've never done _anything_ like
this before.
Looking for a source what seems to be a fairly standard 24v PSU -- is
there anything I should be weary or on the lookout for?
this is what I was told by the guy from Gearslutz that sent me the
schematics.
> I have Mod3 with different transformers. I don't have sowter, but
> ETAL (don't know nothing about them).
> Transformers are used on mic preamp input, so if you don't need
> preamp section you can just leave them out. On the other hand, if
> you need mic preamps, then they're essential ingredient in the sound
> of the preamp. You can find other brands to use as a replacement,
> but be sure they have same electronic values.
>
> 24 volt DC is very common voltage value so I guess it's not hard to
> get. You just need PSU that delivers this voltage, don't worry about
> other values. I think one channel needs less than 0.5 A of
> electicity and that is the value every PSU can deliver. If you're
> racking only one channel, you won't be needing that much power (A
> value, amper). Any PSU that can output 24 volts will do.
here are some schematics if you feel like having a glance.
http://rapidshare.com/files/172136458/MOD2.rar.html
thanks for your help.
+odd
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