O W N E R ’ S R E F E R E N C E
M R S
M A S T E R R E F E R E N C E S U B W O O F E R
WARNINGS
Master Reference Subwoofer Owner’s Reference
SECTION ONE About Krell, pages
SECTION TWO Unpacking and Placement, pages
SECTION THREE Features, pages
Overview
SECTION FIVE Operation, pages
SECTION SEVEN Optional Configurations, pages
WARRANTY, pages
RETURN AUTHORIZATION PROCEDURE, page
Figure 3, page
List of Illustrations
Figure 1, page
Figure 2, page
Page
Chief Executive Officer
A Letter from Dan D’Agostino
Dear Audio Enthusiast
Sincerely Daniel D’Agostino
for workmanship, style, and performance.”
About Krell
The Krell Legacy
SECTION ONE
From the first Krell product - the KSA-100- to the present, Dan D’Agostino has continually “pushed the envelope” of performance in his search for greater amplifier power and now, subwoofer power. His exploration of technologies, driven by his never-endingquest to elevate the standard of excellence, has resulted in break- through audio designs. Over the years, the Krell line of power amplifiers, including benchmark products such as the KRS -100,KRS -200,and the Audio Standard models, has established a legacy of unparalleled sonic performance. The Master Reference Subwoofer brings that level of performance to the low frequency range
The Basics of CAST
A New Approach Current Audio Signal Transmission
Revolutionary Krell CAST Technology
The Best Musical Performance
CAST and Krell Current Mode Combined
CAST Cables
Krell Active Motion Control
Ensuring Maximum Performance
Innovative Subwoofer Technology and Design
Programmable Electronic Crossover
Drivers
Enclosure
Krell Proprietary Output Devices
Krell Core Technologies
Krell CAST and Krell Current Mode
Totally Balanced Operation
Totally Balanced Operation continued
SECTION ONE About Krell continued
Inputs and Outputs
Configurations
Definition of Terms
Krell Active Motion Control
Operation
Technology
Krell Current Mode A proprietary Krell circuit topology in which the audio gain stages operate in the current domain. Krell Current Mode provides speed and bandwidth performance that is not possible with less sophisticated voltage designs
SECTION TWO
Unpacking and Placement
Unpacking
To Unpack the Master Reference Subwoofer
1 person needed
To Remove the Subwoofer from the Packing Crate
4 people needed
Scenario 3 Home Theater, Front Projection
3Master Reference Subwoofer
Scenario 1 Stereo
Scenario 2 Home Theater, Rear Projection
AC Power Guidelines
Placement
See Figure
Features
Front Panel Description
SECTION THREE
4 Front Panel Display
1 Power Button
2 Power LED
3 Stand-byLED
Outputs
Power
Back Panel Remote Connections
Inputs
Master Reference Subwoofer
8 IEC Power Connector
Power
6 Power Switch
7 AC Input Specification
14 Left and Right CAST Inputs
Inputs
12 RC-5In
13 RS-232
21 Left and Right Balanced High-passOutputs
Outputs
19 LFE Single-endedInput
20 Left and Right CAST High-passOutputs
Filter Selection Keys
Power
Level Adjust Keys
Operation Keys
Battery Installation and Removal
Remote Control Description
29 Preset Keys
Remote Control Functions
26 Power Key
28 Phase Key
33 All Key
Filter Selection Keys
Menu Keys
32 Unit Keys
Filter Parameter Keys
Level Adjust Keys
quency setting
43 Adjust Up and Down Keys
Overview
Connections and Configurations
Step V. Select the Phase
Step VI. Saving Your Settings to Presets
CAST and Balanced Connections
Connections and Configurations
Step I. Choose the Connections
A. To Connect the Subwoofer
Switching Between CAST and Balanced Inputs
Factory Defaults
Default Menu Functions
18or the single-endedLFE input 19 on the subwoofer back panel to the subwoofer output of your processor
B. To Activate CAST Inputs
C. Choosing Stereo, LFE, or Stereo/LFE
D. When to Use LFE Only Option
1.Low-passFilter Slope
C. Adjust the Low-passFilter Parameters
A. Select the Low-passFilter
B. Select the Low-passFilter Profile
3.Low-passFilter Level
F. Adjust the High-passFilter Parameters
D. Select the High-passFilter
E. Select the High-passFilter Profile
A. Adjust the High-passFilter
B. Adjust the Low-passFilter
C. To End Noise Generation
Step V. Select the Phase
Step VI. Saving Your Settings to Presets
1.Press the save key
Recalling Presets
To save a setting configuration to a preset
1.Press the preset key
SECTION FIVE
Operation
The Steps for Subwoofer Operation follow
If You Wish to Turn Your System Off
System Protection
Subwoofer Care
SECTION SIX
Connecting Components Through Krell Link
Optional Connections
Krell Link
Krell Link Operation
SECTION SIX Optional Connections continued
RS-232
12 VDC 12 V Trigger
SECTION SEVEN
Optional Configurations
AC Mains Menu
LED Menu
Unit ID Menu
Mute Menu
2.Press the enter key 38. You exit the menu mode
Exit Menu
This option allows you to exit the menu mode
Warranty
Page
serve you better
Return Authorization Procedure
To contact the Krell Service Department