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Summary of Contents for KRWX KERWAX REPLICA
- Page 1 TUBE LINE PREAMPLIFIER Operating Manual Model KRWX-REP...
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Page 3: Table Of Contents
Processing Features ..........13 Signal Paths ............14 Controls ............. 16 Starting Point ............17 Audio Processing ............. 18 Replacing Vacuum Tubes ..........19 Troubleshooting ............20 Technical Specifications ..........21 Recall Sheet ............22 Warranty ............. 23 KERWAX Replica – Operating Manual... -
Page 4: Safety Information
NEVER OPERATE THE DEVICE NEITHER IN EXPLOSIVE NOR IN DUSTY ENVIRONMENT. ê THE DEVICE MUST NOT BE USED EITHER OUTSIDE OR IN CONDENSING ENVIRONMENT. ê ê ALWAYS KEEP THE DEVICE AWAY OF LIQUIDS AND LIQUID PROJECTIONS. KERWAX Replica – Operating Manual... -
Page 5: General Information
MULANN disclaims any proprietary interest in trademarks and trade names other than its own. Contents copyright © 2016-2017 MULANN. All rights reserved. KERWAX Replica – Operating Manual... - Page 6 Designed by KERWAX Manufactured by MULANN FRANCE KERWAX Replica – Operating Manual...
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Page 7: Introduction
1. INTRODUCTION Thank you for choosing KERWAX Replica! We hope it will give you years of satisfaction and musical creativity. It was manufactured in France with the finest materials and components, by and for professional audio users. Please read this operating manual thoroughly before operating your new Replica. -
Page 8: Preparation
2. PREPARATION CONTENTS OF THE BOX The shipping box comes with the Replica model KRWX-REP and an accessory box containing the following items: 1x 3-pole power cord adapted to the country of destination, 2x fuses allowing to change the operating voltage, 4x protective feet (optional). -
Page 9: Installation And Use
Set the voltage selector to the desired operating voltage (110V-120V or 220V-240V) using a small screwdriver. Ü Only when these steps have been completed, plug the AC power cord into a properly grounded AC outlet. KERWAX Replica – Operating Manual... -
Page 10: Names And Functions Of Parts
P R E A M P 1 2 0 1 2 0 Kerwax Replica D R I V E D R I V E #3 to #17 functions are described for one channel only. REAR PANEL #17 to #19 KERWAX Replica – Operating Manual... - Page 11 BASS [10] equalization circuits. When activated, the LED indicator illuminates. i When working in L/R mode with stereo material or in mode, both switches must activated simultaneouly to preserve signal coherence (phase, frequencies and dynamics)! KERWAX Replica – Operating Manual...
- Page 12 AC power connector and fuses holder Mains input with 3-pole standard IEC connector, connects to mains with supplied power cord. 2 fuses are used for each operating voltage (see 2.4 First Operation). KERWAX Replica – Operating Manual...
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Page 13: Using The Replica
The non-linearity modifies the audio signal in such a way that the output signal is not proportional to the input signal. The TRIM control [5] defines the input signal level and can overload the first pre-amplifier stage to the saturation level, creating artifacts. KERWAX Replica – Operating Manual... -
Page 14: Signal Paths
• L/R (dual mono or stereo) mode signal path When the Replica is set to L/R mode, its 2 channels are fully identical and independent. L/R mode signal path (1 channel) * See note page 16 KERWAX Replica – Operating Manual... - Page 15 • M/S mode signal path KERWAX Replica – Operating Manual...
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Page 16: Controls
* When working in L/R mode with stereo material, both DRIVE and EQ switches must activated simultaneouly preserve signal coherence (phase, frequencies and dynamics)! ** When working in M/S mode, BYPASS, DRIVE and EQ switches must be activated simultaneouly to preserve signal coherence (phase, frequencies and dynamics)! KERWAX Replica – Operating Manual... -
Page 17: Starting Point
Switching Listening mode selector [4] between ON and BYPASS positions does not change the signal but the level slightly. For better level balance between ON and BYPASS positions [4], you can adjust the TRIM control [5]. KERWAX Replica – Operating Manual... -
Page 18: Audio Processing
In this case, you can correct this problem using the adequate Phase switch [3]. To go even further, you can replace vacuum tubes by alternative references with different gain and tonal characteristics (see 4.6 Replacing Vacuum Tubes). KERWAX Replica – Operating Manual... -
Page 19: Replacing Vacuum Tubes
Connect power cord and switch on the unit. If a problem occurs, please observe the discharging delay of the circuits before replacing the vacuum tube again. ê ONLY USE COMPATIBLE REFERENCES WHEN REPLACING A VACUUM TUBE! KERWAX Replica – Operating Manual... -
Page 20: Troubleshooting
Is the High-pass filter switch [7] enabled? If yes, disable the option to recover low frequencies (switch is set to middle position). i If you still have problems or specific questions about the operation of your Replica, please contact MULANN. KERWAX Replica – Operating Manual... -
Page 21: Technical Specifications
483 x 342,5 x 222 mm 23.37 lbs Weight 10,6 kg 50°F to 95°F Operating temperature range* 10°C to 35°C 32°F to 122°F Storage temperature range* 0°C to 50°C * Ensure that no condensation occurs. KERWAX Replica – Operating Manual... -
Page 22: Recall Sheet
7. RECALL SHEET KERWAX Replica – Operating Manual... -
Page 23: Warranty
To damages caused by accidents, negligence, abuse, misuse, lightening, water, fire, heat, war, public disturbances or any other cause beyond the control of MULANN. WARRANTY CLAIMS PROCESS If your product requires service within the warranty period, please contact MULANN at sav@mulann.com KERWAX Replica – Operating Manual... - Page 24 Designed by KERWAX 36 route de Keroué 22780 Loguivy-Plougras FRANCE Manufactured by MULANN 9 rue Blaise Pascal 22300 Lannion FRANCE Information in this document is subject to change without notice and does not represent a commitment on the part of MULANN. FM v1.5 EN 06/2017...
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