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Re: a preamp survey

Subject: Re: a preamp survey
From: "Rich Peet" <>
Date: Thu, 11 Mar 2004 01:49:33 -0000
Checking in a bit late on this thread.

Reporting in on the new RME Quadmic Pre:

Keep in mind my perspective is "field" use, as in wind, snow, rain, 
and muck.

I have now run the new Quadmic pre through its initial runs.
It is what it is for field use.

If you care about sound quality at 4 channels with few whistles and 
bells and want to be under $500, this machine is for you.  It was 
designed to be a mate to the RME DSP line where you get your displays 
and controls elsewhere. It has no headphone jack or internal 
battery.  Not even an on/off switch.

It's power needs flexible.  When power is there it is there.  It has 
a pile of capacitors so when you plug it in there is an initial 
surge. after initial charge it pulls about 5 watts.  Power in is 
rated at 7 volts to 38 volts DC, 7v to 27 AC. with brick supplied it 
can be pluged into any wall outlet in the world.

Tested with Algo test, a free download all of you should already have 
if you paid attention to me in the past,
(http://www.algorithmix.com/home/index_downloads4.htm
It does perform well but only exceptional under DC power. Expect 
somewhat less if you feed it AC. I found with a poor DC supply from 
the junk box I was looking at a hum as loud as -103db. Oh gee.

Under good dc or the supplied brick to a wall outlet it really does 
give you 60db gain with a ein of -129db.
That was typed right.
It really does give you 4 channels 60db with a ein of -129db for 
under $500.

For controls it has a whooping three led's. Phantom on, limit on, 
and -25 db activity. For switches there is 3 in the front and one in 
the back. +48volt, Lo cut, Phase reverse. On the back you can switch 
between hi and lo line levels to correspond to your equipments line 
level. There is one gain knob for each channel.

Overall:
This pre was not designed for field use but it is fairly compact with 
one impressive sounding result.  No advanced features here but if 
what you want is a true pre that can handle 4 channels and not a 
headphone amp, MS decode, or lights for level control, this is a 
machine for you.

See:
http://www.rme-audio.com/english/micpreamps/quadmic.htm

Rich



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