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Classe Audio C-151 Owner's Manual
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Classe Audio C-151 Owner's Manual

Remote control balanced preamplifier
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CLASSÉ AUDIO
C-151
REMOTE CONTROL
BALANCED PREAMPLIFIER
C-151
OWNER'S MANUAL

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Summary of Contents for Classe Audio C-151

  • Page 1 CLASSÉ AUDIO C-151 REMOTE CONTROL BALANCED PREAMPLIFIER C-151 OWNER'S MANUAL...
  • Page 2 CLASSÉ DESIGN PHILOSOPHY 1. REPEATED LISTENING DESIGN SESSIONS: Fine tuning of sound by exchanging and mixing of parts (transistors, capacitors, wiring, PCB boards etc.), and adjusting many specific operating voltages within proper engineering ranges, producing an overall sonic recipe giving the most natural harmonic realism of music typical of instruments in a live performance.

  • Page 3: Table Of Contents

    C-151 OWNER'S MANUAL TABLE OF CONTENTS UNPACKING & SET-UP............4 A.C. LINE POWER..............5 INPUTS..................6 JUMPER SETTING DIAGRAMS (MC/MM,) ...... 10 OUTPUTS ................. 12 FRONT PANEL CONTROLS..........13 FEATURES AND SPECIFICATIONS ........16...

  • Page 4: Unpacking & Set-Up

    UNPACKING & SET-UP Your CLASSÉ C-151 preamplifier has been carefully wrapped in heavy gauge plastic, packed in semi-rigid foam and contained in a special box. To remove the unit, open and spread the top flaps of the box. By its sides, lift out the entire unit with foam pieces intact. Remove each foam side by pulling straight out.

  • Page 5: A.c. Line Power

    A.C. LINE POWER The Classé C-151 preamplifier has no power switch. Its low power consumption and improved sonics from always being ON led to the omission of an ON/OFF switch. In fact, while thoroughly musical shortly after turn-on, the preamplifier will exhibit "sonic growth" during its first 300 hours of use.

  • Page 6: Inputs

    INPUTS: The input jacks are clearly marked on the back of the C-151. The following inputs are provided: PHONO/AUX, VIDEO, CD, TUNER, BALANCED, and TAPE. PHONO/AUX The C-151 preamplifier can be configured as a PHONO unit by installing the optional internal phono board onto the main board.
  • Page 7 PHONO INPUT: When switched to PHONO the input can accommodate both magnetic and moving coil cartridges of various outputs. In the MC position, gain of the Moving Coil stage is factory preset at 16dB which matches perfectly with most typical MC cartridges. With the resistor kit included, the gain can be adjusted to 18dB, 23dB, or 28dB, in order to optimize system gain, and lower noise while using other less typical MC cartridges.
  • Page 8 TAPE IN The TAPE IN of the C-151 preamplifier should be connected to the LINE OUT or TAPE OUT of the tape deck. The TAPE input does not appear on the selector switch. It is activated by the TAPE switch. (See FRONT PANEL CONTROLS: TAPE SWITCH.)

  • Page 12: Outputs

    Having confirmed the correct connections, plug the XLR connectors of the balanced interconnects into the locking XLR connector on the rear of the C-151 marked BALANCED OUTPUT. (To remove the connectors, press the tab above the connector.)

  • Page 13: Front Panel Controls

    FRONT PANEL CONTROLS INPUT SELECTOR: This selects one of the five inputs connected to the preamplifier, except TAPE IN (see TAPE SWITCH below). The selector switch is silent and will prevent pulses when switching positions. However, it remains good practice to reduce the volume control level or put MUTE to ON (steady GREEN LED) when changing the input selection.
  • Page 14 Switching between PLAY and MUTE can be done by either pushing the MUTE button on the C-151 faceplate or on the hand held remote control unit. The PLAY (or MUTE OFF) and MUTE ON selections are indicated by the STEADY RED or GREEN LED respectively at the preamp.
  • Page 15 CLASSÉ AUDIO 5070 Francois-Cusson Lachine, Quebec Canada H8T 1B3 Telephone: 514 636 63 85 Fax: 514 636 14 28...

  • Page 16: Features And Specifications

    CLASSÉ C-151 REMOTE CONTROL BALANCED PREAMPLIFIER FEATURES SPECIFICATIONS SHEET C-151 FEATURES: Large power supply with six (6) stages of regulation. One (1) set of balanced inputs, four (4) sets of single ended inputs, one (1) set of balanced outputs, one (1) set of single ended outputs, one (1) Tape loop.
  • Page 17 Notice to all Classé Product owners: Thank you for your purchase of a Classé Audio component. All of us at Classé have taken extreme care to ensure that your purchase will become a prized investment. We are proud to inform you that all Classé Audio components have been officially approved for the European Community CE mark.