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Purple Audio Sweet Ten 500-Series Rack  From Purple

10 Slot 500 Series Rack/Power Supply

Purple Audio

$900.00

"Experience the Difference"

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Manufacturer's Description from Purple

Many manufactures, including past Purple Audio prototypes, use linear power supplies for their racks. Traditional wisdom holds that linear power supplies are ideal for audio and generate less noise and interference.  However, in the case of a 10 slot series 500 rack, even a well designed linear power supply generates a substantial magnetic hum field and far too much heat to allow for internal mounting. This problem is caused in part by the wide variation of line voltage across the world.
 
With the advancement of switching power supplies it is now possible to have a switcher that does not compromise audio performance and delivers or exceeds all specified current needs. Purple has spent years perfecting just such a power supply.  They have comparatively tested all of Purple's, and many of their competitors, modules at full bandwidth (10Hz – 500kHz) on lab quality over built bench supplies to make sure that the Sweet Ten is not compromising audio performance in any way. Simply put, your 500 series modules will perform at their highest level in our rack. Audio performance improvements are considerable.
 
The Sweet Ten top, side, and back panels are finished in trivalent yellow chromate cold rolled steel instead of painted steel for improved grounding and shielding. The ground plane motherboards provide additional grounding. Additionally, the rack motherboard has frequency bypass capacitors at each slot to improve filtering, especially for modules with DC/DC converters.
 
Functionally, the Sweet Ten offers 2 inputs and 2 outputs per slot. Many of our modules already take advantage of second output and our Moiyn mixer module will use the second input to allow for stereo balanced source injection. Future uses of these connectors include fader loops on future modules as well as a few surprises!
 

15 Pin Edac Pinout (SLOT 1-10):

  • Pin 1: Chassis Ground
  • Pin 2: Output A + (XLR Male Pin 2)
  • Pin 3: Output B+ (OPT OUT 1/4″ Tip)
  • Pin 4: Output A – (XLR Male Pin 3)
  • Pin 5: Audio Ground
  • Pin 6: Output B – (OPT OUT 1/4″ Ring)
  • Pin 7: Input – (OPT IN 1/4″ Ring)
  • Pin 8: Input – (XLR Female Pin 3)
  • Pin 9: Input + (OPT IN 1/4″ Tip)
  • Pin 10: Input + (XLR Female Pin 2)
  • Pin 11: NC
  • Pin 12: +15 – 16VDC 130ma
  • Pin 13: Audio Ground
  • Pin 14: -15 – 16VDC 130ma
  • Pin 15: +48VDC 15ma
 

15 Pin Edac Pinout (Second Connector SLOT 9):

  • Pin 1: From SLOT 1
  • Pin 2: From SLOT 2
  • Pin 3: From SLOT 3
  • Pin 4: From SLOT 4
  • Pin 5: Audio Ground
  • Pin 6: From SLOT 5
  • Pin 7: From SLOT 6
  • Pin 8: From SLOT 7
  • Pin 9: From SLOT 8
  • Pin 10: To SLOT 10 XLR IN
  • Pin 11: To SLOT 10 XLR OUT
  • Pin 12: NC
  • Pin 13: NC
  • Pin 14: NC
 
Purple Audio

About Manufacturer

Purple Audio was founded by Andrew Roberts in 1997.

While attending NYU’s music technology program in 1994 Andrew bought, sold and repaired recording equipment from a dorm room on the college campus.

In the fall of 1996, Andrew was introduced to John Klett who invited him to join a new repair shop in midtown Manhattan. This shop, dubbed Tech Mecca, was the new location for Manhattan Audio, a large repair facility and wiring company and Klett’s new midtown home.  Andrew apprenticed under Klett and began repair on high-end audio gear.

By the fall of 1997 Purple had introduced the MC76. Soon after Purple Audio’s inaugural AES show Purple needed more space, the operation was moved to a loft in Long Island City, Queens. This large space provided overflow space for Tech Mecca’s large projects.

Purple Audio spent the late 90s and early 00s shipping the MC76 and getting involved in console and tape machine rebuild projects. Andrew studied analog circuit and logic design, seeing it in practice during field service calls to major studios in the area.  While sales of the MC76 started to drop off as a result of a new competitor’s ad campaign, which in turn brought increased awareness of the MC76 product and user comments proved that the Purple Audio product was clearly superior.  Distribution was finally achieved and Purple Audio began selling direct and through select dealers.

Then began a long process in console design. Andrew designed a couple of large master sections, which were retrofitted into existing consoles. The master sections went through several design revisions before the Super 8 modules were designed. The process resulted in op amps and a mic preamp design that later became the Biz. Eventually Purple delivered 16 channel portable rigs and a 32 channel full-blown console.

In 2006 the bold move was made.  Purple Audio uprooted its operations in New York and shifted focus to a new location in Pennsylvania.   Andrew settled in the quaint little river town of Jim Thorpe Pennsylvania, where he began restoration of a 1850’s Victorian home.  Just a short drive from his new residence Purple’s new location was up and running in a 1000 sq ft. industrial complex in Weissport PA. The shop in New York still exists and is the home of Coral Sound, Exile Studios, Technical Audio, & Eisen Audio.

Upon his move to Weissport, PA in 2006 Andrew was now freed from the distractions of New York, Exile, and repair work. This allowed him to focus on the design work he had anxiously been working toward for years.  With that came the completion of the new Purple Audio products in 2007 : the Action, Cans, Pants, Sweet Ten ready for the AES show with actual production the first few months of 2008.

In 2011 Purple Audio once again upgraded its facilities and purchased a historic fire company in Jim Thorpe PA, called the “Marion Hose”.

Located just blocks away from Andrews residence in Historic Jim Thorpe PA.  The Building was sold to Purple Audio by the Mauch Chunk Historical Society.  An entire year was devoted to the gutting and refitting of the new Purple manufacturing facility.  While respecting the original historic architeture the exterior remains intact and historically correct while the interior reflects a NYC style loft with a hi-tech organic flare.   The second floor is primarily for design and manufacture, and an area designated for an artist lounge, kitchen, bath and views.  More to come on that.