Musical Fidelity KW250S Instructions For Use Manual
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Musical Fidelity KW250S Instructions For Use Manual

Kw series, musical fidelity, tube input integrated amplifier/tuner/cd player
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KW250S
KW SERIES TUBE INPUT INTEGRATED AMPLIFIER/TUNER/CD PLAYER
INSTRUCTIONS FOR USE
Thank you for purchasing the Musical Fidelity KW250S
This model uses the very latest DAB/FM radio text receiver, top quality CD transport, ultra low jitter 24 Bit
DAC technology and further jitter reduction techniques to achieve both an excellent technical specification
and unparalleled DAB/FM/CD sound quality. This is complimented with a top quality 6922 tube line level
preamplifier stage and two monobloc power amps capable of driving over 250W.
The KW250S is a perfect answer to most hi-fi requirements in a single, beautifully engineered package.
Used properly and carefully, it should give many years of outstanding musical reproduction.
Dust regularly with a soft duster or soft brush, but be careful when using cleaning or polishing agents - they
may harm the surface finish.
If you have any questions about your audio system,
Please consult your dealer who is there to help and advise.

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Summary of Contents for Musical Fidelity KW250S

  • Page 1 250W. The KW250S is a perfect answer to most hi-fi requirements in a single, beautifully engineered package. Used properly and carefully, it should give many years of outstanding musical reproduction.

  • Page 2: Table Of Contents

    KW250S CONTENTS PAGE Section Safety information Mains plug (U.K. only) Modification warning Laser product labelling Laser type Radio-frequency interference Installation precautions General advice User information Item disposal information EU disposal information Introduction Installation Installation Aerial Audio connection Notes on using compact discs...

  • Page 3: Safety Information

    If connecting to a BS1363 plug, a 13 amp fuse must be used. WARNING: ANY MODIFICATIONS TO THIS PRODUCT NOT EXPRESSLY APPROVED BY MUSICAL FIDELITY WHO IS THE PARTY RESPONSIBLE FOR STANDARDS COMPLIANCE COULD VOID THE USER'S AUTHORITY TO OPERATE THIS EQUIPMENT.
  • Page 4 CLASS 1 LASER PRODUCT The KW250S incorporates a CD player which has been designed and manufactured according to FDA regulations "title 21, CFR, chapter 1, sub-chapter J, based on the Radiation Control for Health and Safety Act of 1968", and is classified as a Class 1 laser product.
  • Page 5 Connect the CD player to a mains outlet on a different circuit from the receiver. • Consult a dealer or experienced TV/radio technician for help. If a problem persists, please contact Musical Fidelity's service department. Page 5 of 25 Issue 3: 12th July 2006...

  • Page 6: General Advice

    If after-sales service is required, to help your dealer identify the KW250S please quote the serial number located on the rear panel of the unit.

  • Page 7: Item Disposal Information

    KW250S ITEM DISPOSAL INFORMATION DISPOSAL The crossed out wheeled bin label that appears on the back panel of the product indicates that the product must not be disposed of as normal household waste. To prevent possible harm to the environment please separate the product from other waste to ensure that it can be recycled in an environmentally safe manner.

  • Page 8: Installation

    MM and MC cartridge users. The power amplifier consists of two mono block amplifier Inputs: The KW250S has three line level inputs and a Phono modules with completely separate supplies for the absolute MM/MC input. PHONO MM/MC, AUX1 and AUX2 are best in separation and imaging.

  • Page 9: Facilities And Connections

    KW250S FACILITIES AND CONNECTION FRONT PANEL 1. DAB/FM Tuning knob CD function buttons 2. DISPLAY (incorporates remote control IR receiver) TUNER function buttons 3. CD drawer AMPLIFIER function buttons 4. VOLUME knob PDI (Portable Device Input), 3.5mm jack connector 5. POWER mains on/off switch REAR PANEL 10.

  • Page 10: Remote Control

    KW250S REMOTE CONTROL The remote control shown below enables functions to be operated from a convenient distance. Equivalent buttons on the remote control have the same functions as those on the front panel of the unit. Other functions are only available by remote control.

  • Page 11: Cd Basic Operation

    KW250S CD BASIC OPERATION LOADING AND PLAYING COMPACT DISCS STOP Select CD function by pressing CD button under AMPLIFIER Playback can be stopped at any time by pressing the STOP heading to the right of the front panel, the CD button on the button once.

  • Page 12: Cd Special Features

    When the desired starting point is reached, press button A / B Press INTRO again to cancel introduction search mode. If on the remote control. INTRO mode is cancelled while the KW250S is still playing, The display will show the remainder of the entire disc will be played.
  • Page 13 DISPLAY there is a delay of about two seconds before the display KW250S display brightness can be controlled in three accepts the entry - this is to allow time for a second button to levels by pressing the DISPLAY button on the remote be pressed when a double-digit number is required.

  • Page 14: Cd Problems

    Never open the case of the unit yourself, as this will invalidate the guarantee. If none of the above actions affect a cure, please contact your dealer or Musical Fidelity service agent.
  • Page 15 KW250S DAB FUNCTION BUTTONS DAB TUNER BUTTONS TUNE UP/DOWN Press TUNER under AMPLIFIER heading to select the To select a station, simply turn the left-hand knob to internal DAB/FM tuner. cycle through the list of receivable broadcasts in your Note: Whenever the power is turned ON, the station area.
  • Page 16 KW250S DAB FUNCTION BUTTONS INFO Displays the current broadcast information in the following order: - DAB programme text - Music Type - Network name - Date and time (as transmitted by network) - Transmission mode and bit rate - Ensemble and frequency...

  • Page 17: Fm Function Buttons

    KW250S FM FUNCTION BUTTONS AUTO-TUNE To auto search stations, press the AUTO TUNE button. The tuner will search upwards through the FM Preset saved band and pick out the next station for you. and then revert to selected station. 105.80MHz...

  • Page 18: Tuner Problems

    Change batteries for a new set reduced If none of these actions affect a cure, please contact your dealer, or an authorised Musical Fidelity service agent. Remember; never open the case of the KW250S yourself, as this will invalidate the guarantee.

  • Page 19: Amplifier Connections

    If you are in doubt about bi-amplification, please contact your dealer for advice. Phono: The KW250S has a pair of RCA type phono input sockets intended for use with moving magnet TAPE OUT: The KW250S has a single tape output (MM) or moving coil (MC) pickups.

  • Page 20: Amplifier Operation

    Selects the internal tuner. Please refer to p.14 for advice the POWER button to the bottom left of the front panel, and tuner functions. the front panel of the KW250S- the blue display will AUX 1 To use the AUX1 input, connect your external source to KW250S v1.0...
  • Page 21 This source will now be routed to the KW250S TAPE OUT for recording by tape deck, cd recorder DAT, minidisk, or computer soundcard input. You will also be able to hear the selected source through the loudspeakers.

  • Page 22: Amplifier Problems

    Change batteries for a new set. reduced If none of these actions affect a cure, please contact your dealer, or an authorised Musical Fidelity service agent. Remember; never open the case of the KW250S yourself, as this will invalidate the guarantee.

  • Page 23: Cd, Dac And Tuner Specifications

    KW250S CD, DAC & TUNER SPECIFICATIONS Disc mechanism Philips Total correlated jitter < 135 pS DAC: DAC circuits 24 bit Delta-Sigma (Bit stream) dual differential 8x over sampling Up sampling 192 kHz Total correlated jitter < 135 pS Linearity < 0.1dB down to -96dB Output digital 0dB level 2.15VRMS at 1 kHz nominal...
  • Page 24 IEC type mains lead (16-Amp type), Remote control (A5, universal type), 2 batteries size LR03 or AAA, manganese alkaline type Musical Fidelity reserves the right to make improvements which may result in specification or feature changes without notice. Page 24 of 25...
  • Page 25 KW250S MANUAL REVISION RELEASE DATE CHANGES Issue 1 June 2006 release] Issue 2 June 2006 Presentation updated. Item disposal page and Issue 3 July 2006 CDDA note added Page 25 of 25 Issue 3: 12th July 2006...

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