Proudly making Quest AV equipment in Australia since 1988
abn 99 064 323 255  also t/a Quest Electronics ®  and Quest AV ®
Phone and SMS ... 0431 920 667 Mail ... POB 348  Woy Woy  NSW   2256
MD12 input panel MD12 output panel
The MD12 is now out of production as of February 2017
INPUT Connector: Male and Female XLR's for loop-through Impedance: 100K Ohms nominal (high Z / bridging) Coupling: Transformer isolated Ground: Floating or connected, front panel switch Level: -16dBu min to +24dBu max for +4dBu output Gain: ±20dB, front panel recessed control OUTPUT Connectors: 12 x XLR Male, 6 x 6.35mm 3p Jack, 6 x RCA Impedance: 600 Ohms nominal, to feed high Z load Coupling: Outputs seperately transformer coupled and isolated Grounds: Floating or connected, individual switch on each o/p Level: Line: +4dBu nominal   Mic: -36dBu nominal Selected by individual switch on each output Freq. Resp: -3dB @ 15Hz and 30KHz @ -6dBu Distortion: <0.1% @ 1KHz, +4dBu S+N:N: >90dB, unweighted, wideband
GENERAL AC Supply: 240Vac (default) +/- 20%, <7VA  (120Vac to order) Built-in thermal and over-current protection. Dimensions: 482.6 x 210 x 2RU (88mm) overall, W x D x H  with rack ears fitted Weight: 3Kg Accessories: Supplied with IEC-style mains cable Other features: Loop-through bridging input Level meters on front and rear panels Rack-mounting is reversible, default shown Power socket is reversible, default shown Each user has their own controls All aluminium chassis Low power consumption
Our   MD12   is   a   2U   high   rack-mount   audio   distribution   amplifier   specifically   designed   to   distribute   a professional quality mono audio signal to the Media.
the associated XLR for maximum versatility. The    outputs    can    be    used    in    any    combination    of balanced,    unbalanced,    grounded,    ungrounded,    line level     and     microphone     level.     The     settings     and connections of any output will not affect the others. Input    levels    from    +24dBu    down    to    -16dBu    may    be adjusted for +4dBu line level output. The    rack    mounting    hardware    can    be    removed    or reversed   and   the   mains   connector   can   be   on   the   input (default) or output panel.
The   input   panel   has   a   high   impedance   balanced   line level    input    with    male    and    female    XLR's    for    looping through,       ±20dB       screwdriver       accessible       gain adjustment, l.e.d. level meter and ground lift switch. On   the   output   panel   there   are   twelve   audio   outputs   and a   level   meter.   All   outputs   are   electrically   isolated   and each   output   has   it's   own   line   /   mic.   level   switch   (0dB   / - 40dB) plus a ground lift switch. Six   outputs   have   a   6.35mm   stereo   jack   socket   and   the other   six   have   an   RCA/Phono   socket   in   parallel   with
MD12 Out of production as of February 2017