CAUTION! Dangerous voltages inside!
1. Before plugging in the preamp, insert
the tubes. Carefully align the key in the
tube base to the notch in the tube socket
for each tube. It doesn’t matter which tube
goes where—all tubes in Freya are the same type.
2. Ensure tubes are well-seated. Push down rmly until the tube is
seated on the tube socket. This may take a fair amount of force.
3. Plug it in and turn it on. The tubes will glow after a few
seconds, and the microprocessor will connect the output after
about 40 seconds.
4. Connect your sources.
Connect up to 5 sources
to Freya’s balanced and
single-ended inputs.
5. Connect the output. Connect
the output of Freya to your amp or
amps using XLR or RCA cables.
6. Ensure the volume is turned down if you’re using Freya for the
rst time. You don’t want any big surprises!
7. Power it up, turn it up, and enjoy your music!
TUBES
replacInG tUbeS
Freya accommodates any 6SN7, 6N8S, or 5692 tube type.
6SL7, 6N9S, and equivalent types also work, but will have higher
distortion and higher output impedance.
The right tubes are for the differential voltage gain stage. The left
tubes are for the cathode follower output stage. All tubes are of
the same type on Freya.
To replace or swap tubes:
1. Turn off and unplug the preamp. Wait a while for the tube to
cool. Seriously, these suckers are pretty hot.
2. Carefully extract the tube by gently rocking it back and forth
and pulling upwards.
3. Carefully insert the replacement tube. Align the key to the notch
and press down rmly until the tube is seated.
4. Plug the preamp back in and turn it on.
NOTCH
GETTING STARTED
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