9
AC Power Connection
AC Power Inlet & Power Cord
A high quality IEC-type power cord is supplied with your Zphono XRM. Please connect it directly
to an AC wall outlet or power line conditioner that is always “live.” If possible, plug your Zphono
XRM into the same AC wall outlet or line conditioner that your preamplifier or integrated amp is
plugged into. If a different AC outlet is used for the Zphono XRM the ground potential may be
higher or lower between the AC outlets, resulting in audible hum.
Note:
Before you plug in the AC cord please review 115 V / 230 Voltage Selector
Switch information on page 5.
Front Panel Controls
Power Button
Turns your Zphono XRM on and off.
Stereo/Mono Mode Switch
Selecting Mono parallels the left and right stereo channels into mono. Many older mono records
and some older stereo records might sound cleaner when you select mono. The normal position
is Stereo.
Rumble Filter Switch
This reduces audio output below 40
Hz.
This switch is especially useful if your turntable is
susceptible to feedback from your speakers and subwoofer or if you hear footsteps when you
walk near the turntable. Some older records may also be pressed with audible rumble. If you are
hearing low frequency “rumble” in your speakers this filter will help reduce it.
MC/MM Input Switch
This switch selects between the separate MM and MC input jacks. You can connect two
turntables simultaneously if one turntable has an MC cartridge and the other turntable has an MM
cartridge and use the input switch to select between them.
Zphono XRM Design Overview
The XRM gives you, the listener, the best possible opportunity to experience the full emotional
content of vinyl. Independent circuits for MM and MC optimize the signal to noise ratio and sonic
presentation reproduction and gives you the ability to connect two turntables or two tonearms
mounted on a single turntable. A Stereo/Mono switch is found on very few phono preamplifiers.
Balanced XLR outputs provide optimum rejection of external noise using common mode
rejection (CMRR).
Summary of Contents for Zphono XRM
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