USER MANUAL
Britannia™ Series
B1
B2
B3
REL Acoustics Limited
North Road, Bridgend Industrial Estate
Bridgend, CF31 3TP
Great Britain
Telephone: +44 (0) 1 656 768 777 Fax: +44 (0) 1 656 766 093 Web: www.rel.net
REL Acoustics Britannia Range User Manual
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REL Acoustics Britannia Range User Manual |
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Contents |
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CONTENTS................................................................................................................................................... |
3 |
IMPORTANT SAFEGUARDS ................................................................................................................... |
4 |
WARNING..................................................................................................................................................... |
4 |
WELCOME ................................................................................................................................................... |
5 |
WORLD WIDE WARRANTY.................................................................................................................... |
5 |
SERVICE AFTER WARRANTY.............................................................................................................. |
5 |
DESIGN SAFETY......................................................................................................................................... |
6 |
MAIN FEATURES OF THE REL BRITANNIA B1, B2 AND B3 SUBBASS SYSTEMS............... |
7 |
CONTROL PANEL...................................................................................................................................... |
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CONTROLS AND CONNECTIONS B1 ................................................................................................... |
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CONTROLS AND CONNECTIONS B2 ................................................................................................. |
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CONTROLS AND CONNECTIONS B3 ................................................................................................. |
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CONNECTING UP..................................................................................................................................... |
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TO CONNECT TO THE POWER AMPLIFIER USING THE UNBALANCED NEUTRIK HIGH LEVEL INPUT..... |
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TO CONNECT TO MONO BLOCK POWER AMPLIFIERS USING THE HIGH LEVEL NEUTRIK |
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UNBALANCED INPUT ............................................................................................................................ |
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TO CONNECT TO DIFFERENTIAL (BALANCED OUTPUT) POWER AMPLIFIERS USING THE BALANCED |
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HIGH LEVEL INPUT ..................................................................................................................................... |
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TO CONNECT TO THE AMPLIFIER/PROCESSOR USING THE PHONO TO PHONO LOW LEVEL INTERCONNECT |
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ALTERNATIVE METHOD FOR CONNECTING AT LOW LEVEL FROM PRE AMPLIFIER .................................. |
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TO CONNECT TO A PRE AMPLIFIER WITH LOW LEVEL DIFFERENTIAL (BALANCED) OUTPUTS.................. |
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REL SET-UP MADE SIMPLE ................................................................................................................. |
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REL SET-UP MADE SIMPLER .............................................................................................................. |
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RUNNING IN .............................................................................................................................................. |
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OVERLOAD PROTECTION ................................................................................................................... |
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CARE AND POLISHING.......................................................................................................................... |
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TECHNICAL............................................................................................................................................... |
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POWER SAVING EFFICIENCY............................................................................................................. |
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TECHNICAL SPECIFICATIONS BRITANNIA RANGE B1, B2 AND B3 ...................................... |
27 |
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REL Acoustics Britannia Range User Manual
IMPORTANT SAFEGUARDS
1.Read all of these instructions.
2.Save these instructions for future use.
3.Unplug from the wall socket before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.
4.Do not use near water.
5.Do not place on a stand or table it may fall causing injury to a child or adult, and damage to the unit.
6.The unit should only be operated from the power source indicated on the panel of the amplifier.
7.Only use the power cord supplied.
8.Do not allow anything to rest on the power cord. Position the power cord such that it cannot be walked on.
9.For added protection during a lightening storm, or when not in use for long periods of time, unplug it from the wall socket.
10.Never spill any kind of liquid on the unit.
11.Do not attempt to service the unit yourself, as removing the amplifier may expose you to dangerous voltages. Refer all servicing to your dealer.
12.Unplug the unit from the wall socket and refer servicing to your dealer under the following conditions:
a.When the power cord or plug is damaged.
b.If liquid has been spilled onto the unit.
c.If the unit does not operate properly by following the operating instructions.
d.If the unit has been dropped and damaged.
e.When the unit exhibits a drastic change in performance.
WARNING
These items are extremely heavy. To avoid risk of injury, take care when handling.
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REL Acoustics Britannia Range User Manual
WELCOME
Thank you for buying a REL Britannia range Sub-Bass system. Our Britannia range is carefully hand built using the finest materials available and is designed for maximum performance. This manual contains important safety information as well as helpful advice and should be carefully studied before connecting up.
WARRANTY
This product is warranted to be free of all defects in material and workmanship for three years from the date of original purchase by the original owner. A purchase receipt or other proof of original purchase will be required before warranty service is rendered. This warranty is not transferable and does not apply to any defects caused by negligence, accidents, misuse, modification, disassembly, or repair by other than the manufacturer, or by other than normal use for which this product was intended. Within the period of this warranty, Sumiko will repair or replace at our service center located at 2431 Fifth St., Berkeley, CA 94710 any part proving defective in material or workmanship. All expenses, except collateral expenses, related to replacing or repairing a defective part under this warranty will be assumed by Sumiko, except for the cost of transporting and insuring the product to our above-named service center. The buyer must notify Sumiko of any defect, malfunction, or nonconformity promptly upon discovery. Within 30 business days after receiving the defective product from the buyer, Sumiko will repair or replace the defective part. We neither assume nor authorize any representative or other person to assume for us any other liability in connection with the sales or shipment of our products. We reserve the right to make changes or improvements in our products without incurring any obligation to similarly alter products previously purchased. The buyer has the right to bring any action at law or equity to resolve disputes concerning or to enforce the provision of this warranty.
SERVICE AFTER WARRANTY
Please contact your dealer in the first instance before returning any product directly to us. Should the unit need to be returned for any reason, all shipping costs will be payable by the customer. Losses or damage caused during transit are the customer's risk.
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REL Acoustics Britannia Range User Manual
DESIGN SAFETY
This apparatus is designed to Class II specification and is double insulated, therefore it does not require to be grounded.
[Is below true, or should it be cut as indicated?]
This product is CE marked and has been tested to ensure it satisfies all relevant standards.
It satisfies all relevant standards for Conducted Emissions, Radiated Emissions, Susceptibility and Immunity.
It also complies with the requirements relating to class II construction detailed in clauses 9 & 10 of BS EN 60065 1994
It also satisfies all relevant safety tests for consumer use provided it is used within the guidelines of this manual.
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REL Acoustics Britannia Range User Manual
Main Features of the Rel Britannia B1, B2 and B3 SUBBASS SYSTEMS
1.Separate volume controls for both high and low level inputs
2.Critically correct semitone resolution of the filter controls
3.Balanced and unbalanced inputs via high quality sockets
4.Mode switch to control phase and low level filter bypass
5.All components of matching superior quality to achieve both long-life and long-term consistency of sound quality.
6.All cabinets made from 30 mm thick MDF.
7.Superior wood veneered finishes available for all models.
8.Set-Safe® circuitry ensuring ultimate protection if overloaded.
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REL Acoustics Britannia Range User Manual
Control Panel
The layout of the panel is intended to ensure total ease of use. Both low and high level inputs can be used concurrently. Individual volume controls for the high and low level inputs ensure precise individual adjustment for both high-level two channel (stereo) signals and multichannel LFE (surround sound) signals.
The mode switch allows both the phase and the filter bypass to be incorporated into one control. The Line positions route the low level signals through the ABC filter circuits (crossover controls). In the LFE (Low Frequency Effects) positions the low level signals bypass this filter. This is to ensure compatibility with multi-channel home theatre surround sound systems where the bass frequency range is controlled within the software by the processor’s decoder circuitry. The high level inputs are always routed through the ABC.
The phase can be reversed by 180 degrees by means of this same switch to preserve the relative phase between your main system and the REL. This acts at both high level and line level. See table below.
MODE SELECTOR
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SOURCE |
PHASE |
1 |
LINE |
0 |
2 |
LFE |
0 |
3 |
LINE |
180 DEG |
4 |
LFE |
180 DEG |
The two filter controls are to allow coarse and fine control of the filter settings. The coarse control marked A through D changes the turnover frequency by approximately half an octave per division. The fine control marked 1 through 6 offers a resolution of approximately one semitone per division.
The frequencies offered by these two controls are shown in the table below:
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ROLLOFF FREQUENCY |
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HERTZ |
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1 |
2 |
3 |
4 |
5 |
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6 |
A |
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22 |
23 |
25 |
27 |
28 |
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30 |
B |
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32 |
34 |
36 |
38 |
41 |
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43 |
C |
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46 |
49 |
53 |
56 |
60 |
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64 |
D |
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69 |
73 |
78 |
83 |
89 |
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95 |
These frequencies are within 1% tolerance and are repeatable between all Britannia range models.
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REL Acoustics Britannia Range User Manual
CONTROLS AND CONNECTIONS B1
See page 12 for explanation
1 2 3
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LO LEVEL |
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HI LEVEL |
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4 |
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4 |
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MIN |
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MAX |
MIN |
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MAX |
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B |
C |
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3 |
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A |
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2 |
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5 |
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COARSE |
ROLLOFF |
FINE |
6 |
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0dB |
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7 |
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+12dB |
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MODE |
SELECTOR |
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SOURCE |
PHASE |
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1 |
LINE |
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0 |
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LO INPUT |
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2 |
LFE |
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0 |
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3 |
LINE |
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180 deg |
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4 |
LFE |
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180 deg |
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ROLLOFF |
FREQUENCY |
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HERTZ |
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1 |
2 |
3 |
4 |
5 |
6 |
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A |
22 |
23 |
25 |
27 |
28 |
30 |
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B |
32 |
34 |
36 |
38 |
41 |
43 |
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9 |
C |
46 |
49 |
53 |
56 |
60 |
64 |
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D |
69 |
73 |
78 |
83 |
89 |
95 |
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HIGH LEVEL
UNBALANCED INPUT
8
HIGH LEVEL
BALANCED INPUT
10
LINE LEVEL
BALANCED INPUT
BritanniaTM B1
300 WATT MOSFET SUB-BASS SPEAKER SYSTEM
PROTECTED BY
R
~ 100-120 VAC 50-60 HZ
FUSE 6.3A/T
CE
www.rel.net
MADE IN GREAT BRITAIN
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