Manley The WAVE DAC/Preamp 20 Bit Version Serial Code WAVE000-015 1999 - 2002 User Manual
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note 1) The insert send and return can be factory wired for either balanced or unbalanced loops. Balanced
Inserts use XLR 3 pin connectors appropriate for pro reel to reel tape decks and pro EQs (like the Manley
Massive Passive). For a nominal charge we can also provide sensible tape monitor switching and input/output
for 2 tape decks and EQ (but we expect very few will need this level of complexity).
note 2) On special request, the factory can modify the INSERT for appropriate surround sound decoders so
that the INSERT RETURN bypasses the Volume Control and Tube Line Amplifier and comes back right
before the Output Select. This assumes the surround sound decoder becomes the master volume control.
This arrangement allows the high quality DAC and selected analog inputs to feed the surround sound decoder
and retains the 5.1 calibrated levels while also allowing multiple outputs and an integrated way to quickly
return to a true audiophile two channel mode.
J) OUTPUT 2. The Wave has 3 final stereo outputs. Unless muted, Output 1 is always on and there are no
relays in this signal path as is common for audiophile systems. Output 2 and Output 3 can be turned on and
off separately. The standard WAVE is set up so that either 2 or 3 is on and pushing either button toggles
between these two. This allows alternative amplifier/speaker combinations. This is often needed by mastering
engineers (they typically use a few different speakers to verify quality and compatibility) and reviewers for A/B
testing as well as audiophiles with dedicated headphone systems and surround set-ups.
note) There are internal jumpers that change this arrangement so that Output 2 and Output 3 can be used
independently. An application for this is multiple room systems where the Wave feeds amps and speakers in
several locations. This also disables the remote control Phase button which then becomes OUTPUT 2 select.
K) OUTPUT 3. As above. Output 3 is a balanced floating output and is fully compatible to drive balanced or
unbalanced inputs and is the best choice when long lines need to be driven. Pin 1 (Shield/Ground) may be
disconnected in situations where ground loops and hum tend to be a problem.
L) MUTE. Simply silences the Wave when lit. The Wave has two other conditions that force MUTE. There is a
20 second time delay MUTE when the Wave is first powered up to prevent the big thumps typical as tubes
reach operating temperature (it also mutes quickly on power-down). The second "force mute" condition is
when one of the digital inputs is initially selected and when there is no data (or the data is invalid). Again, this
is to prevent un-controlled glitches and digital noise.
M) STANDBY. This is a "barely on" mode that turns off the power to the DAC, relays, LEDs & tubes and just
uses a trickle of power to allow the front panel to remember its settings, respond to buttons and to the remote
control. The Standby indicator should be dim and all other LEDs will be off. When STANDBY is pushed again,
all the LEDs return to the last used setting, except the MUTE which is in "force mute" for 20 seconds as the
tubes warm up.
note) There may be a short learning curve involved between the various combinations of MUTE, OUTPUT 2/
3, Insert and INPUT SELECT where it seems annoying that you have to push buttons to get music. If you are
like us, the cause is a bit of impatience while waiting for the warm-up delay and pushing buttons which end up
killing the signal and causing confusion when it was only muted during the warm-up. If you wait the 20
seconds the Wave will return to the last used setting before it was put in Standby.
When the Wave is unplugged or power turned off at the external power supply, settings are lost and it tends
to power up with the PHASE, MUTE and OUT 3 selected but no source selected. There is no default initial
setting so this may be random (including INSERT). You will probably need to push the PHASE, MUTE and
select one of the 8 INPUTs. Depending on your system OUT 2 may have to be toggled as well. The settings
are not retained with a battery, and the logic is discrete rather than employing a micro-controller to prevent
another source of clocked logic noise entering the system. You just have to look at what is lit after you first
turn it on, but using STANDBY will be painless if you have 20 seconds worth of patience.
Very rarely the digital input reciever may lock-up when switching between various sources. Switching to a
different digital input and back usually cures this and STANDBY totally resets the DAC board.
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