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The rules should oblige the seller to give the purchaser an operating instrucion of Bose B2000, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Bose B2000 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Bose B2000. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Bose B2000 should contain:
- informations concerning technical data of Bose B2000
- name of the manufacturer and a year of construction of the Bose B2000 item
- rules of operation, control and maintenance of the Bose B2000 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Bose B2000 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Bose B2000, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Bose service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Bose B2000.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Bose B2000 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
B1 500 / B2000 Power Amplifiers Owner s Guide Designed for[...]
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Page 2
2 1. Safety Information Safety Warning This unit is fitted with a 3-wire power connector. For safety reasons , t he earth lead should not be disconnected in any circumstan ce . If gro und loops are encountered consult the section on input connections later in this manual. Please pay special attention to the AC power considerations part in chapter 4[...]
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Page 3
3 Contents 1. Safety Information 2 2. Before you begin 2.1. Unpacking the Amplifier ... ...... 4 3. The B 1500 and B2000 Prof essiona l Power Amplifiers .. 5 4. Installation 4.1. Location and general precautions . 6 4.2. Mechanical considerations 6 4.3. Thermal co nsiderations ......... 6 4.4. A C power considerations .. 6 4.5. Magnetic le akage an[...]
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Page 4
4 2. Before You Begin Congratulations on your purchase of a new B OSE ® Professional Stereo Power Amplifier. The product has been designed to provide excellent son ic quality and has been engineered for reliability. 2.1 Unpacking the amplifier Carefully unpack y our a mplifier. Ke ep the original carton and packing materials for possible future us[...]
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Page 5
5 3. B 1500 / B2000 Power Amplifiers The B 1500 or B2000 A mplifier is a no compromise, high quality, class AB power amplifier. Fan speed is varied as required to keep the amplifier within its temperature limits. Signal limiters are included to protect speakers from clipped signals. The amplifiers include full DC and short circuit protection on the[...]
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Page 6
6 4. Installation 4.1 Location and general precautions Locate the unit where it will not be exposed to rain or moisture. If fluid or a foreign object enters the unit, disconnect the power plug. Do not pull by the cord; grasp the plug firmly. Contact an authorised dealer or service centre. Locate the unit wher e it will be protected from heat and al[...]
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Page 7
7 4. Installation Tx and the brown w ire to Spare Tx for 220Volt operation (Connect brown to Live Tx and violet to Spare Tx for 240Volt operation ). Live Tx Spare Tx B 1500 shown only . 4.5 Magnet ic leakage & R.F Interference considerations Like all high power amplifiers, B 1500 & B2000 should be kept away from other equipment that is sens[...]
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Page 8
8 4. Installation 4.6 Input s The inputs are made via 3-pin XLR connectors, w hich are electronically balanced and should be connected via a high grade twin core screened cable, as follows: - B alanc ed operation B 1500 shown only GND (Shield) GND (Shield) PIN1 - Screen (see note) PIN2 - Hot (signal +) PIN3 - Cold (signal -) - + GND (Shield) Balanc[...]
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Page 9
9 4. Installation Un balanced operation The a mplifier is designed to operate w ith fully balanced equip ment and ground loops or loss of performance may be exp erienced if connected to unbalanced sources. If it is unavoidable however, the following wiring should be used. The cable should still be twin core plus screen. B 1500 shown only PIN1 - Scr[...]
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Page 10
10 4. Installation 4.7 Link ing amplifiers Each amplifier channel is provided with a 3-pin XLR connector marked Link which allows the input signals to be linked to further amplifiers etc. The pin connections a re the same as for the input . 4.8 B ridged m ono operation For bridged mono operation connection should be made to channel A input only. Se[...]
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Page 11
11 4. Installation 4. 9 Outpu ts The speaker outputs are via Neutrik Speakon connectors. Only 2 of the 4 poles are used. Stereo o peration B 1500 Shown Only Terminations are as follows: - Ch annel A Live (Hot) + Pin +1 Ch annel B Live (Hot ) + Pin +1 Ch annel A Return(Cold ) - Pin -1 Channel B Return(Cold) - Pin -1 NOTE : 1. Although the "cold[...]
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Page 12
12 5. Operation 5.1 Switch on At S witch -on the protection cir cuit will initially activate whilst th e circuits stabilise. Assuming no faults are detected after a few seconds only the POWER LED ( and SIGNAL indicators if signal is applied) will illuminate. 5.2 Level c ontrols These are analogue controls allowing precise level settings. Note that [...]
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13 6. Faults / Fuses / Maintenance There are internal secondary (low voltage) fuses on some internal supply rails. In the event of failure the uni t MUST BE DISCONNECTED FROM THE MAIN S SUPPLY B EFORE REMOVING THE UNI T COVER . The fus es sh ould be replaced with the sa me type only. THIS SHOULD BE C ARRIED OUT BY QUALIFIED PERSONS ONLY. WARNING: I[...]
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Page 14
14 7. BOSE ® EQ Card s The B 1500 and B2000 power amplifiers are compatible wit h the e ntire range of BOSE Equalisation Cards . When configuring a bi - amplified syste m jumper links allow you to select hi gh pass filter functionality on certain EQ cards for mid/high loudspeakers. Th is rolls off th e low fr equency to the mid/hi gh loudspeaker p[...]
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15 7 . BOSE ® EQ Card s 7 .2 B2000 EQ card fitting Locate the EQ C ard sockets. Insert the EQ Card into the so cket, observing t he orientation of the mating connector. Remove the bypass jumper link for the channel (A = J104 or B = J204 ) a nd replace horizontally as shown below: Bypass active c h annel A EQ card active channel A Jumper location c[...]
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Page 16
16 7. BOSE ® EQ Card s 7 .3 EQ card fitting f or bridged mono operation The Bos e EQ card should be fitted into the channel A connector inside the amplifier and the input signal should be connected to input A. The brid ge sw itch on the rear of the amplifier should be set to bridge mode. The output is then taken from the bridged output Speakon soc[...]
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17 8 . Technical Specification TECHNICAL SPECIFICATION B 1500 POWER OUTPUT: Continuous output power, both channels driven: Power values measur ed at 230Vac 450 Watts per channel into 8 from 20Hz to 20 kHz, with no more than 0.03% THD 715 Watts per channel into 4 from 20Hz to 20 kHz , with no more than 0.03% THD 1025 Watts per channel into 2 from 20[...]
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Page 18
9 . Declaration of Conformity DECLARATION OF CONFO RMITY We, the offerer: Bose Corporation, The Mountain, Framingham, MA 01701 - 9168 USA acknowledge our responsibility, that the product: Kind of equipment: Audio amplifier Type designation: B 1500 Professional Power Amplifier, B2000 Professional Power Amplifier in accordance with EMC Directive 89/3[...]
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How to reach the sales offices in Europ e Austria Professional Systems Division, Austria Bose Ges.m.b.H., Business Park Vienna Wienerbergstrasse 7, 10 O.G. 1100 Wien, Österreich Telephone: 01 -60404340 Fax: 01 - 604043423 Belgium Professional Systems Division, Belgium Bose N.V., Limesweg 2 3700 T ongeren, België Telephone: 012 -390800 Fax: 012 -3[...]