6
INPUTS:
The input jacks are clearly marked on the back of the
30
. The following inputs are provided:
PHONO/AUX, VIDEO, CD, TUNER, BALANCED, and TAPE.
PHONO/AUX
The
30
preamplifier can be configured as a PHONO or LINE unit by setting the internal
jumpers. The PHONO and AUX share the same pair of RCA input jacks. The following steps should
be performed to switch between them.
1) Make sure MUTE is ON (Steady GREEN)
2) Disconnect A.C. line cord from the wall outlet.
3) Remove the top cover with the Allen key supplied.
4) Locate PHONO/AUX Input and Output jumpers. Switch to desired type of input.
PHONO
INPUT:
When switched to PHONO the input can accommodate both magnetic and moving coil
cartridges of varying output levels. Set the jumpers to MM for magnetic or MC for a moving coil
cartridge. In the MC position, gain of the Moving Coil stage is factory preset at 23dB which matches
perfectly with most typical MC cartridges. With the resistor kit (included), the gain can be adjusted
from 13dB to 41dB, in order to optimize system gain, and low noise while using other less typical
MC cartridges. (Note: The MC gain is in addition to the standard MM gain of 38dB). To change the
MC gain, proceed as follows:
1) Make sure MUTE is ON (Steady GREEN)
2) Disconnect A.C. line cord from the wall outlet.
3) Remove the top cover with the Allen key supplied.
4) Locate R104 and R204, which are the MC gain setting resistors for the LEFT and RIGHT
channels respectively. Remove the resistors and replace them with newly selected ones, according to
the following chart:
