B and K ST-1430 Mk2 Owners manual

B & K Components Ltd.

P/N 12690

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

Safety Precautions Page 2
Purpose and function Page 3
Design and construction Page 3
Features Page 3
Rear panel view Page 4
Rear panel description Page 4 - 5

Control muting Page 5 - 6
Level controls Page 6
Outputs Page 7

Inputs Page 7 - 8
System installation Page 8
Making the connection Page 9
Troubleshooting Page 10
Care and cleaning Page 10
Specifications Page 11
Warranty page 12

Manual and Power cord

Page 1

WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT
TO RAIN OR MOISTURE.

The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the
user of the presence of uninsulated “dangerous voltage” within the product’s enclosure
that may be sufficient magnitude to constitute a risk of electric shock to you.

The exclamation point within an equilateral triangle is intended to alert the user of the
presence of important operating and maintenance (servicing) instructions in the
literature accompanying the unit.

 Observance of polarity is essential. Double-check connections before turning

the amplifier on. The amplifier can be damaged if polarities are incorrect.
 Damage can occur to your speakers if the power rating* of each individual driver

is exceeded by the amplifier. Ensure that all the drivers in your speaker system

are capable of handling not only the power being delivered by the amplifier, but

the energy that is likely to be generated during strong passages.

 Turn amplifier ‘off’ when plugging in or unplugging input and speaker cables!!!
 The ST1430 series II is equipped with raised feet so that continuous ventilation

can be maintained. They help to maintain acoustic feedback into the amplifier at

a minimum. They also provide a measure of protection against scratching any

surface the unit might be resting on.
 Do not stack anything on top of the amplifier (preamplifier, processor,

source...etc.).
 Leave at least 2-3 inches clearance from the top of the amplifier to the next shelf,

component, etc., to ensure proper ventilation.

* If you are at all unsure of what the speaker ‘ratings’ are, contact your dealer.

Page 2

The ST1430 series II is a compact, very efficient, three channel power amplifier. It is
designed to be used in all types of audio or audio/video systems.

The ST1430 series II utilizes high quality electronic circuitry to achieve an environment
wherein a detailed, transparent, and highly musical sound can be realized. The high
quality parts complement include state-of-the-art solid state devices, 1% metal film
resistors, computer grade electrolytic power supply capacitors, and a high capacity
toroidal transformer.

The ST1430 series II operates class A predriver and AB high current MOSFET power
output stages. It is capable of reproducing the most demanding audio signals at rated
power levels.

- Efficient high current transformer for improved dynamics.

- More accurate and three dimensional reproduction of source

material.

- Improves low level detail for smoother, more musical sound.

- For efficient and linear power delivery.

- Provides short term protection from accidental shorting of output

devices and protection from thermal overload.

- Improve connections for better sound and minimized signal

loss and degradation.

- Low noise resistors for better sound and a greater degree

of repeatability.

- Ability to reproduce demanding recordings.

- Large capacity computer grade electrolytic capacitors

for extended low frequency control and improved dynamics.

Page 3