GETTING STARTED
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 exact
type (6SN7, or, for Russian NOS tubes, 6N8S).
2. Ensure tubes are well-seated. Push down firmly
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 tube will glow after a few seconds, and the
microprocessor will connect the output after about 30 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 first 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.
If you’re curious, 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 firmly until the tube is
seated.
4. Plug the preamp back in and turn it on.
NOTCH
