English dropdown-ico

B&K ST260 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of B&K ST260, 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 B&K ST260 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 B&K ST260. 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 B&K ST260 should contain:
- informations concerning technical data of B&K ST260
- name of the manufacturer and a year of construction of the B&K ST260 item
- rules of operation, control and maintenance of the B&K ST260 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 B&K ST260 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 B&K ST260, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the B&K 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 B&K ST260.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the B&K ST260 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

  • Page 1

    ST260 Two Channel Amplifier OWNER’S MANUAL B & K Components Ltd. 12997 REV 050500[...]

  • Page 2

    B&K Components, Ltd., 2100 Old Union Road, Buffalo, New York 14227[...]

  • Page 3

    Page 1 Table of contents Safety Precautions Page 2 Purpose and function Page 3 Design and construction Page 3 Features Page 4 Rear panel view Page 4 Rear panel description Page 5 Control muting Page 5 - 6 Level controls Page 6 Inputs Page 7 Outputs Page 8 Internal Bus Page 9 Jumper description Page 9 - 10 Mono application Page 11 Bridged applicatio[...]

  • Page 4

    Page 2 SAFETY PRECAUTIONS PLEASE READ BEFORE INSTALLING WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. The li g htnin g flash with arrowhead, within an equilateral trian g le, is intended to alert the user of the presence of uninsulated “dan g erous volta g e” within the product’s enclosure that may be [...]

  • Page 5

    Page 3 The ST260's purpose and function The ST260 is a compact, very efficient, two channel power amplifier. It is designed to be used in all types of audio or audio/video systems. The term versatile is almost adequate to describe the variance of operational modes the ST260 is capable of providing. This is all accomplished through the simple p[...]

  • Page 6

    Page 4 )LJXUH$ Features Toroidal Transformer - Efficient hi g h current transformer for improved d y namics. Discrete Circuitry - More accurate and three dimensional reproduction of source material. Limited Protection - Provides short term protection from accidental shortin g of output devices and protection from thermal overload. Gold Plated Co[...]

  • Page 7

    Page 5 Rear panel description 1. AC fuse holder - Holds the AC Line fuse. This fuse is an 8 Amp / 250 Volt Slow Blow fuse. Replace with same type and value fuse only. 2. AC Input receptacle - For attaching the supplied AC power cord to the amplifier. 3. Speaker outputs - For connecting the speakers to the amplifier. Explained further on page 8. 4. [...]

  • Page 8

    Page 6 )LJXUH% If the control function is desired, each unit in the system must remain connected at all times and the control must be enabled. To enable the control function, the CTRL ENABLE button must be out for each controllable amplifier in the system. For more information on the amplifiers output status under various control conditions, ref[...]

  • Page 9

    Page 7 )LJXUH& )LJXUH' Example: When using 4 ohm and 8 ohm speakers together, the 4 ohm may sound louder then 8 ohm at a given volume level. The level controls on the amplifier are used to match the speakers volume level. Clockwise will increase the output. Counter clockwise will decrease the output. Inputs RCA type connectors accept[...]

  • Page 10

    Page 8 )LJXUH( Outputs Five wa y bindin g posts are provided. One pair for each channel. The y are desi g ned to accept a banana-t y pe plu g or spade lu g connector (shown below) and are color coded for eas y identification. The red (+) post should alwa y s be connected to the speakers (+) jack. The black (-) post should alwa y s be connected t[...]

  • Page 11

    Page 9 )LJXUH) )LJXUH* ST260’s internal bus structure In order to g ain access to the internal bus structure, y ou must first remove the top cover. Turn the amplifier so the rear panel is facin g y our. The jumper modules ma y be seen on the circuit board just behind the level controls. Below is the default setup for the ST260 amplifier. B [...]

  • Page 12

    Page 10 R BUS - Along with being the right channel input, it is used as the input to the right bus and the right source for the ‘L+R BUS’. Because it is a BUS input, any signal input here will appear at the ‘R BUS’ jumper terminal for both of the ST260’s jumper modules. L+R BUS - Installing a jumper plug at this terminal on either of the [...]

  • Page 13

    Page 11 )LJXUH+ )LJXUH, )LJXUH- Mono application (Medium current) The ST260’s two output channels ma y be paralleled (mono) to combine the left and ri g ht channels output current. This feature allows the amplifier to double its apparent output current. To use, place the source g roup jumper for both channels on the ‘L BUS’ jumper te[...]

  • Page 14

    Page 12 )LJXUH. )LJXUH/ )LJXUH0 Brid g ed application (Hi g h volta g e) The ST260 ma y be brid g ed to drive a hi g h impedance speaker. To use, place the source g roup jumper for both channels on the ‘L BUS’ jumper terminal. Place the volume g roup jumper for both channels on the ‘NO VOL’ jumper terminal. Place the jumper module [...]

  • Page 15

    Page 13 System installation There will most likely be a number of cables involved in the installation of your home entertainment system. Pre-planning is essential in order to maximize system efficiency. We recommend the following as a means of helping you reach that goal:  Make a diagram of your proposed system by laying out the relative locatio[...]

  • Page 16

    Page 14  Connect the wires from your speakers to the appropriate output on the amplifier. It is absolutely essential that you observe correct polarity in these connections. Example: If you connect your ri g ht output of your preamplifier to R channel input on the amplifier, remember to connect your ri g ht front speaker wires to R channel output[...]

  • Page 17

    Page 15 Troubleshooting PROBLEM POSSIBLE CAUSE POSSIBLE SOLUTION No sound (‘on’ LED not illuminated) 1. Power cord not plu gg ed in. 2. Power off at AC source. 3. AC power inlet fuse blown or faulty. 4. Control switch in the wron g position. 1. Reconnect power cord. 2. Check AC switch or fuse. 3. Check for shorts or overloadin g . 4. Place cont[...]

  • Page 18

    Page 16 ST260 SPECIFICATIONS Power rating: 8 ohms 60 watts @ 1 kHz 4 ohms Not recommended Frequency response 5 Hz - 45 kHz Input sensitivity 0.77 Volts THD (S+N) 0.09 % @ 1 kHz Input impedance 33.2 k ohms Damping factor 100 Current (peak to peak) 20 Amps Slew rate 14 V / ) sec Dynamic headroom 1.4 dB S/N (A-weighted) 95 dB Voltage gain 28 Line volt[...]

  • Page 19

    Page 17 Limited Warrant y B&K Components Ltd., referred to herein as B&K, warrants your B&K equipment a g ainst all defects in material and workmanship for a period of five years from the date of purchase. This warranty applies only to the ori g inal purchaser and only to equipment in normal residential use and service. Defective equipm[...]

  • Page 20

    B&K Components, Ltd. 2100 Old Union Road Buffalo, New York 14227 716-656-0023 www.bkcomp.com[...]