Krell Industries DT-10 Owner Reference Manual

DIGITAL

DT-IO

OWNER’S REFERENCE

INTRODUCTION

Thank you for your purchase of the KRELL DT- 10 CD Transport and welcome
to the KRELL family of audio components. KRELL is dedicated to the devel-

opment of technologically advanced components for the reproduction of digi-

tally recorded music. The DT- 10 redefines excellence in the KRELL tradition

of uncompromising performance through leading-edge technology.

The DT- 10 is the most flexible KRELL transport to date. All of the keypad

processing software that controls the operation of the transport and laser as­sembly has been written by KRELL. Because of this the DT- 10 delivers un­surpassed sonic performance and interface possibilities. KRELL is one of

very few companies in the world that writes transport software. The DT- 10

utilizes the Philips CDM-4 Pro transport mounted on a KRELL linear bear­ing based platforIn. In order for a drawer loading transport to perform to
KRELL’s expectations, this type of rigid assembly was necessary. When fully
closed, the transport is mechanically rigid and isolated, free from external
stimuli. The disc is secured by a custom magnetic clamp. The clamp is very
light weight and will not effect critical disc speed. The magnetic structure of
the clamp is designed so it will not disturb the swing arm and laser assem-

bly as do many popular clamp designs.

The DT- 10 has several features new to KRELL transports. This Owner’s Ref-

erence describes them in detail. All of these features and functions can be
controlled from the DT-1 O’s multi-function remote control. Along with the

transport functions, basic KRELL preamplifier and amplifier functions are
now provided on the remote control.

PAGE 2

INTRODUCTION

This Owner’s Reference is designed to ensure the clear, trouble free instal-

lation of your DT- 10. Basic Installation, Operation and Question and Ans@er
sections are provided. Should you have any questions or comments, please
feel free to contact your authorized dealer or the KRELL staff for assistance.

In the unlikely event that your DT-10 should require service, you will be
pleased to know that it is backed by a comprehensive Customer Satisfaction
policy and one of the most advanced service facilities in the industry. For
detailed information on the terms and conditions of service, please consult
the Warranty and Service section of this Reference, Warranty Registration
Card, or an authorized KRELL Dealer/Distributor.

PAGE 3

TABLE OF CONTENTS

5

6

7

8

9

l0

12

13

14

17

18

20

22

23

UNPACKING INSTRUCTIONS

PLACEMENT AND AC POWER CONSIDERATIONS

OUTPUT CONNECTIONS

DIGITAL INTERLINK CONSIDERATIONS

TIME SYNC

CONNECTING AT&T ST CABLES

OPERATING INSTRUCTIONS

DT-10 REMOTE PREAMP AND AMPLIFIER FUNCTIONS

COMPLETE DT-10 FEATURES AND FUNCTIONS

HOW TO WRITE A PROGRAM

HOW TO WRITE A DMS PROGRAM

QUESTIONS AND ANSWERS

SPECIFICATIONS

WARRANTY AND SERVICE INFORMATION

PAGE 4

UNPACKING

1. Once the box has been open and top layer of foam removed, the followi.’ng

items will be visible:

DT- 10 CD TRANSPORT

DT- 10 Remote Control
AC power cord
AT&T cable (1 mtr)

Packet containing the Owner’s Reference and Warranty Registration

Card

NOTE: If any of these items are not included, please contact your authorized
dealer immediately for assistance.

2. Carefully remove the Transport and accessories from the box. Remove the
protective plastic wrap from the Transport.

NOTE: Save all packing materials. If you must ship your DT-10 in the future,
repack the unit in its original packaging to prevent transit damage.

PAGE 5

PLACEMENT

PLACEMENT

Before you install the DT- 10 into your system, we recommend that you fol­low these guidelines in choosing the location. This will facilitate a clean,
trouble-free installation.

1. Place the unit on a firm level surface away from excessive heat or running

water. Make sure there is enough room for the drawer to open completely.

2. Although well shielded, the DT- 10 should not be placed in close proxim-

ity to hum-sensitive components such as preamps, turntables, and tuners.

CD transports can create interference and induce hum.

3. The DT- 10 does not require additional mass coupling or isolation. You may
experiment with feet or cones as long as they do not permanently aff~ to the

chassis. Any unauthorized modifications to the electronics or chassis will

void the warranty.

AC POWER CONSIDERATIONS

NOTE: While the DT-10 has superb regulation and does not require a dedi­cated AC circuit, we strongly advise against connections through extension
cords or muitiple AC adapters. High quality 15 amp grounded AC strips are
acceptable. High quality AC line conditioners or filters can be utilized if they
are grounded and meet or exceed the unit’s Power Supply rating of 60VA.

CAUTION: Do not remove or bypass the ground pin on the end of the AC
cord. This may cause RFI (radio frequency interference) to be induced into

your playback system.

PAGE 6

CONNECTIONS

OUTPUT CONNECTIONS

CAUTION: When making connections to this component or any other, make
sure the power amplifier is OFF and the preamplifier is in the MUTE or
STANDBY mode.

1. Connect the AC Mains cord to the back of the DT-10 and plug the power

cord into the AC Mains.

2. Connect the digital output of your DT- 10 CD transport to the inputs of the
D/A Processor. The DT-10 is equipped with the following outputs: one co­axial, one AT&T wide-bandwidth fiber optic, one TOSH fiber optic, and one
AES/EBU balanced output.

The DT- 10 is also equipped with Time Sync, which is used to lock the c!jocks
of the transport and D/A processor. For a complete description of Time Sync,
see page nine. If the Time Sync option is not being utilized, its ST connector
output can be used for a second AT&T format fiber optic output. To convert
the Time Sync Output to a standard output, follow the instructions below.

a. Remove the center top-plate from the DT- 10 with a T- 15 torx head wrench.

b. Locate the red slider switch labeled one on the rear right side of the ex­posed channel.

c. Move the switch up towards the back to the one position.

d. Reinstall the center top plate.

e. The Time Sync output can now be used for connection to any device with

an AT&T/ST format input.

Set-up is complete.

3. Once you have completed the necessary output connections, select the
corresponding input of your D/A processor. When the DT-10 is selected, if
its a KRELL or has this function, the 44.1 KHz indicator on the D/A processor
will be engaged. On some D/A processors the sampling frequency needs to
be selected.

PAGE 7

:CONNECTIONS

NOTE; If the DT-10 is on and the 44.1 KHz frequency indicator does not
engage, check to make sure the digital interconnect cable is secure at both
ends or is not in need of repair.

Care should be taken in selecting the type of cable used to link the DT-10
to your processor. We suggest using the AT&T wide-band width fiber optic
cable. The AT&T format has a bandwidth of approximately 50 MegaBit. This
allows accurate transmission of the digital bit stream without data corrup­tion and proves to be sonically superior. If the AT&T format is not available,
a high quality quartz fiber optic (Toshiba format) link can work well. Using
a fiber optic interconnect reduces ground loop problems often associated with
quality audio systems.

If coaxial cable is used, it should be non-capacitive and have a bandwidth
in excess of 10MHz to prevent drop-out errors. For best resuits with coaxial
cable we recommend the AES/EBU balanced format. The AES/EBU format
is a + 5 volt balanced digital transmission. Because of the high voltage
balanced format, this system allows for accurate data transmission and has
great sonic advantages over standard single-ended coaxial or Tosh fiber optic
terminations. The AES/EBU coaxial cable must have two Conductors and a

shield for balanced termination.

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