Thor Audio PHB Brochure

QIPOP.CVSO

from

Thor Audio

The many burn-in types of CDs on the market have one thing in common.
They all start in the CD player or DAC and go directly to the line level section of your
preamp. While they are very effective in burning in the line section of the preamp,
cables, amps and speakers, they do nothing for the phono section. Anyone who has an
analog based system has no recourse but to play hundreds of hours of records in order to
realize any of the subtle inner detail and timber capabilities of their equipment.

As the literature accompanying many burn-in CDs will tell you, playing music
is not the most effective means of burning in a system. It does not deliver every
frequency with the same intensity or consistency, and could even result in a sonic
“signature” on the capacitors in your system by playing only the same type of music.
Playing music only will also do nothing to help the inevitable residual magnetism
building up on the components themselves.

The PHONO BURN will effectively burn-in your complete system from your
phono section through to your speakers. Realizing the FULL capabilities of your system
is as easy as playing the enclosed CD through the PHONO BURN once every couple of
months.

The PHONO BURN accomplishes this in three ways.

1) It takes the output of the DAC or CD player and drops the signal down 50

-70dB.

2) It does a reverse RIAA curve to the signal.

3) It’s output, when plugged into the phono inputs of your preamp selected for
your type load, perfectly emulates the output of a cartridge.

Use the enclosed diagram on the back of this manual to connect the PHONO

BURN to your system. (Do not apply unnecessary force or twist the cable when
connecting to the PC mounted jacks.)

If you have a Moving Coil Cartridge, use Track 1 on the CD. If you have

a Moving Magnet Cartridge, or are using the transformer settings, use Track 2.

FOLLOW THE RULES FOR ANY BURN-IN CD - Play the CD only at a

moderately low

listening level, otherwise speaker damage could occur Play it for four
hours the first time you use it, (the PHONO BURN needs to be broken in also) and two
hours each time after that. If you just want to burn in the phono/line section of your
preamp, the amps do not have to be turned on.

This will still burn in your system all
the way through and including the preamp-to-amp cables, but not the amps or speaker
cables.
While you can play music CDs through it, the PHONO BURN is meant for
burn-in purposes only and would diminish dynamic range due to its small PC board
traces and is not meant for critical listening.

Warranty: The PHONO BURN comes with a lifetime guarantee subject to
normal use. Warranty is administered with exclusions concerning commercial use, abuse,
modifications, shipping damage or natural disaster.
Product improvements and refinements may be made without notice.

THOR AUDIO 315 PALAMAR DRIVE FAIRFIELD, CT 06825

input output
DAC/CD Player PHONO PREAMP
out BURN phono input

NOTE: The Phono-Burn is shipped in the 47K load position. If you do not sure
which input load your phono preamp has, consult your phono preamp dealer.
These switches MUST be set for the right load, or the unit will not work properly!

To gain access, unscrew ONLY the four Phillips head screws in the corners -NOT the standard

(see below for type of inputs - 1K, 47K or input transformer)

slot ones inside the feet and in the center!

Shown in 47K load position

2