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Precision Power DAC348 manual

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Table of contents for the manual

  • Page 1

    CONTENTS (click on a topic to view) Congratulations Wiring Features and Specifications Inputs / Outputs Operation Block Dia gram Installation T r oubleshooting Wiring W arranty D A C348 Digital to Analog Con ver ter O WNERS MANU AL PO WER CLASS TM[...]

  • Page 2

    C aution! The extended use of a high powered audio system may result in hearing loss or damage. While Precision P ower systems are capable of "Concer t Le v el" volumes with incredible accuracy , they are also designed for you to enjoy at more reasonable levels all of the sonic subtleties created by musicians. Please observe all local sou[...]

  • Page 3

    1 FEA TURES / SPECIFICA TIONS PWM Power Supply T rue 24-bit Digital Signal Processing Class "A" Analog Stages Direct-Coupled Analog Circuitry Dual RCA Outputs Analog Pass-Through Smart Input Selection Gold Plated RCA Input and Output Connectors Optical and Coax Digital Inputs Completely Designed And Handcrafted In The USA Three Y ear W ar[...]

  • Page 4

    2 OPERA TION Precision P ower 's D A C-348 processes the digital signal directly from the CD player , changer or other digital source. All digital to analog conversion as well as the subsequent filtering and analog treatment of the signal by the stock source unit is replaced by the superior digital signal processing, digital to analog conversi[...]

  • Page 5

    3 Mounting T o prevent damage to the DAC while driving, mount it in a secure place. Choosing the appropriate location will depend upon your vehicle and the complexity of your system design. Keep in mind that the output of the D A C-348 must go to a preamp to control the volume of the digital source. T o keep the signal path as short as possible, th[...]

  • Page 6

    4 WIRING F u s e mu s t b e i n s ta ll e d w i t hi n 1 8 " o f b a t t e r y D r i ll a h o l e in t h e f i r e wa ll a n d u se a r u b be r g r o m m e t t o ke ep w i r e fr om s h o r t i ng . M o u nt t h e D A C -3 48 n e a r t h e f ro n t o f th e v e h i c l e t o m i n im iz e s i g n al p a t h l e n gt hs R u n t he c a b l e s [...]

  • Page 7

    B A CK T O CONTENTS 5 The next step is to connect the Power , Ground, and Remote wires to your D A C-348 . The power wire should run from the mounting location through the vehicle to the battery or power distribution block. Avoid sharp corners, creases, and sharp body parts. When passing through any metal wall (i.e. firewall etc.), a grommet must b[...]

  • Page 8

    6 INPUTS / OUTPUTS Connect the Digital output from your source to the appropriate Digital Input connector (coax or T oslink optical). After connecting Power , Ground, and Remote wires, plug in the P o wer loc k connector here. 5 amp Fuse Parallel Analog Outputs to Preamp. Analog Inputs from source unit. Sync LED - Red light indicates digital signal[...]

  • Page 9

    7 BLOCK DIA GRAM Smart Input Selector Toslink Input Coaxial Input Decoder DSP 8x Oversampling, Digital Filtering, and De-emphasis L R Burr-Brown D to A Converter Burr-Brown D to A Converter I to V Conversion I to V Conversion Low Pass Filter Low Pass Filter AMP AMP DC Servo DC Servo L R Analog Inputs L R R R Analog Outputs L L B A CK TO CONTENTS[...]

  • Page 10

    Reverse left and right RCA outputs SOUND IS NO W IN IS THE SYNC LED LIT? SOUND IN ONE CHANNEL ONL Y Check Balance control. Reverse left and right RCA inputs SAME CHANNEL Problem is in the RCA cables OPPOSITE CHANNEL Problem is in the head unit or RCA cables SOUND IS NO W IN SAME CHANNEL Problem is downstream of the DAC-348 NO Check Power and Remote[...]

  • Page 11

    W ARRANTY Three-Y ear Limited U.S.A. Warranty This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Precision P ower warrants its products to be free from defects in materials and workmanship under normal use and service for a period of three (3) years from the date of original purchase wh[...]