MX-VYNL fully balanced phono stage
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Issue 1
Balanced XLR and unbalanced RCA outputs
A preamplifier can be connected to the output sockets. Use balanced inputs and outputs where
available. The outputs (RCA or balanced) are designed to be connected to any suitable
matching LINE LEVEL input on following pre/amplifier. Most line level inputs including those
labelled for different purposes (e.g. “TAPE” or “TUNER”) are normally suitable. Do NOT connect to
any PHONO or MIC level inputs as this will result in over amplification, distortion, and possible
damage to speakers/power amplifiers.
Phono inputs
Phono MM or MC cartridges can be connected to the XLR (balanced) or RCA (single ended)
inputs.
The XLR Balanced input is a “Mini XLR” 5 pin type which carries hot and cold signals for both left
and right channels direct from the cartridge as well as an internal 0V for reference. If required,
this 0V connection can be used, for example to connect tonearm/head shell assembly to aid
screening. It must not be connected to any part of the motor circuitry. See P. 3 for wiring.
Balanced input requires access to all 4 separate cartridge wires.
The RCA input uses standard RCA sockets, use good quality 100% screened cables, ground and
signal connections at both ends for best results. Keep such cables as short as possible and
away from mains, speaker cables and any other possible sources of interference.
Do not attempt to adapt turntable RCA outputs into this device’s BALANCED input as
the outer shield of the cable and/or the turntable connections will pick up and send
in surrounding noise causing degraded performance. Only use MX-VYNL balanced
input with
fully balanced
turntable outputs. If the turntable only has RCA outputs, use
MX-VYNL RCA inputs.
Connecting to turntable
Make sure the MX-VYNL and subsequent amplification is switched OFF. Connect the required
input of the MX-VYNL to output socket on your turntable and select the corresponding input
using balanced/RCA input switch on back panel.
Mains power connection
Connect the low voltage plug from the power supply to the
Power
socket before connecting the
power supply to the mains. Make sure unit’s on/off switch is in the off position.
Phono/turntable grounding post
The gold grounding post should only be connected when excessive hum is
experienced. Connect the turntable earthing lead to this post if hum is noticed. If hum
worsens when the earth post is thus connected, then disconnect immediately and
investigate the cause elsewhere.
Some systems may have more than one direct earth point(s) already involved. This
could cause hum problems that may only become apparent on connecting this
product. Thus the unit may not be the root cause of hum detected in a system, even if
it is the only device that appears to be making the hum apparent.
There is no harm done if
no
connection is made to this terminal, as it is not always needed
anyway, for example, some turntables have their own earthing arrangement.
