Controls and Hook-Up
Front Panel
The front panel of the PrimaLuna models is made from machined aluminium, finished to complement
the blue metallic chassis. The following functions are controlled with the 4 silver buttons on the front:
play/pause; stop/open; next/previous; repeat current/repeat all (read further down the manual for
special instructions).
Rear Panel
Looking at the rear panel, you’ll note you have three outputs: one set of stereo analog outputs; two
digital outputs—one coaxial and one optical.
PrimaLuna
®
ProLogue Eight
6
11
Tube Information
The 12AX7, 12AU7 and 5AR4 tubes will have a life of about 10,000 hours.
Here are some tips on using tubes:
• Do not use treatments on tube pins or in sockets.
• If you decide to experiment with other types of tubes, it is critical that you first turn the power off to
the CD player, then turn the volume down completely on your pre-amp AND also switch your
pre-amp to a different source. We recommend you not swap tubes in and out repeatedly because
every time you insert a tube, you increase the chance of loosening the tube sockets. It’s okay to
have fun, and we support that, but don’t go crazy and swap tubes in and out twenty times a day.
• The ProLogue Eight has a warm-up time of just a few minutes. Although it is not wise to leave
tube components on 24 hours a day, you may leave this player on if you choose, but it will result
in more frequent tube replacement. Through experimentation, come to a conclusion that fits
comfortably with your lifestyle.
• Break-in yields improvements. So, when your CD player is new, or when you re-tube it, it may
take a little time to settle in. There is however no fixed “time rule” for break-in.
•
IMPORTANT!
Please note that tubes can vary electrically, and by plugging in the wrong type of
tube (i.e. 6922 for a 12AX7) you can damage the unit and void your warranty.
Common replacements:
•
12AX7:
ECC83, ECC803S, E83CC, 7025, CV4004. You can also use a 5751, but please note
that the 5751 is a lower gain tube than a 12AX7 and the sound will be altered.
•
12AU7:
ECC82, ECC802S, E82CC, 5814, 6189, CV4003.
•
5AR4:
GZ34, CV1377 are equivalent. 5V4G, 5T4, and 5Y3 will also function fine with small sonic
changes that you may want to experiment with. Do not use other types as damage may occur.
Topview picture of ProLogue Eight
PrimaLuna
®
ProLogue Eight
Some tubes and tube sockets
(in this case, the 5AR4/ rectifier)
have a center “key” which must
align If you force it when
misaligned, you will damage
important and expensive parts
of your CD player.
PrimaLuna ProLogue Eight
