A Designs Audio 503HR


Horizontal  three  space  1RU  rack  for 500  Series modules. 

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A Designs Audio 503HR

Introducing  the A Designs Audio 503HR  horizontal,  three  space,  1RU  rack  for  the  500  Series  (Lunch  Box) crowd.

The  503HR  is  replacing  the  A-Designs  500HR  two-slot,  horizontal  rack  to  accommodate  the  increasing need for Channel Strips in both recording and live application fields.

We  have  been  asked  by  our  customers  to  develop  a  3-slot  version  in  a  horizontal  1RU  rack.  Well,  the  end result  is  the  503HR.  We  feel  this  meets  the  need  for  a  full-blown  Channel  Strip,  a  requirement  for  Pro Audio  Recording  and  live  applications  for  performing  artists  that  wish  to  adapt  their  sound  for  changing venues. This can be accomplished by using a simple insert of a different module (or two, or even three).

The  503HR  has  a  robust  external  power  supply  with  an  LED  display.  This  displays  the  amount  of  power being  consumed  or  if  the  units  in  the  503HR  are  drawing  too  much  power.  But,  the  robust  power  supply can handle the demand.

There is a 3-LED array on the face plate which displays the +16V, -16V and +48V.

Some  503HR  features  include:   

All  metal  construction,  XLR  in  and  out,  as  well  as  a  “FEED”  switch  on  the front. This  allows  you  to  come  into  slot  1  and  out  slot  3.  It  also  allows  you  to  just  feed  1  and  2  or  none. The “Feed”  switch  is  a  3-position  switch  used  for:  Slots  1  and  2  or  “Off”  or  “All”.  This  reduces  the  need  to  use six (6) XLR cables for a channel strip. But, if you are inclined to do so, you still have that option.

When  using  the  503  with  the  “Feed”  switch,  all  that  is  needed  are  two  (2)  XLR  cables    –  Male  and  Female. The  input,  as  an  example,  would  go  to  Slot  1  and  the  output  to  Slot  3,  when  the  “Feed”  switch  is  in  the “ALL” position.

This  is  very  useful  for  live  applications.  For  example,  you  may  only  require  the  503HR  (with  a  500  series Pre,   Compressor,   EQ),   a   power   amp   and   a   cabinet.   Place   the   “Feed”   switch   to   position   “All.”  The connections  would  be  as  follows:  Assign  the  output  of  Slot  2  for  FOH  (Front  of  House)  and  the  output  of Slot  3  for  your  amp.  Used  as  a  Channel  Strip  for  Bass  or  Guitar  [Preamp,  Compressor  and  EQ],  your  500 series  Pre-amp  would  go  into  the  500  series  Compressor,  Compressor  out  to  the  FOH  and  your  500  series EQ to your power amp then to your cabinet. This works extremely well.

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