Balanced Audio Technology VK-6200 User manual

VK-6200
WARRANTY REGISTRATION FORM
Unit Serial Number: _______________________________________
Customer Name: _______________________________________
Address: _______________________________________
_______________________________________
Date of Purchase: _______________________________________
Purchased From:
Dealer Name: _______________________________________
Address: _______________________________________
_______________________________________
IMPORTANT NOTE:
In order to receive the full five year product warranty, please mail this
completed form together with a copy of your sales receipt to Balanced Audio
Technology at the address below, within thirty days of purchase.
Failure to do so will result in the product being warrantied for one year
from the date of manufacture.
1300 First State Blvd. Suite A Wilmington, DE 19804
Tel: [phone] Fax: [phone]

VK-6200
Multi-Channel Power Amplifier
Owner's Manual
1300 First State Blvd. Suite A Wilmington, DE 19804
Tel: [phone] Fax: [phone]

Introduction
Thank you for your purchase of the Balanced Audio Technology VK-6200 balanced power
amplifier. Please read this owner's manual to obtain the full benefit of the VK-6200 in your
system. It will provide you with the needed safety information and operating procedures for this
exceptional unit.
WARNINGS:
To prevent the possibility of serious injury, electrical shock or fire:
DO NOT operate with the cover removed.
DO NOT expose to rain or moisture.
DO NOT defeat the ground power-plug.
DO NOT replace fuses with anything other than the same type and rating as supplied by the
factory.
Package Contents
Included in the box should be the following:
Description Quantity
VK-6200 Power Amplifier 1
Power Cord 1
Spare Fuses 3
Spare Top Cover Screws 5
Owner’s Manual 1
Optional Accessories (as ordered)
Save all the packaging material in a safe dry area for the unlikely event that you need
to return the VK-6200 to the factory for service.

Physical Placement
It is recommended that you provide for at least 6" of free space around the unit for proper
ventilation. High power amplifiers like VK-6200 benefit from extra ventilation around them.
Providing unobstructed air flow around the unit will assure cooler operation of its internal
components and will extend its service life.
Mount the unit on a hard surface with proper ventilation underneath.
Do not stack the VK-6200 power amplifier on top of other units, nor vice versa.
IMPORTANT NOTES:
To assure reliable operation always turn the VK-6200 OFF while making or changing
input or speaker connections. No connections should be made while the
amplifier is ON.
If the VK-6200 was turned OFF for any reason, wait at least 30 seconds before
turning it back ON.
Input Connections
Best results will be obtained when connecting the VK-6200 to a balanced preamplifier.
However, the VK-6200 is designed to accept either balanced or single-ended inputs.
Each channel of VK-6200 has two input connectors – one XLR for balanced connections, and
one RCA for use with single-ended interconnects. Input selector switch allows you to select
the right input connector for your application.
Speaker Connections
Each channel of VK-6200 is equipped with one pair of high quality binding posts. These
can accommodate a wide variety of speaker cable terminals. You can use a 7/16” wrench
to tighten these binding posts, however excessive force should be avoided to eliminate the
chance of breakage.

Operating the VK-6200
Turning the VK-6200 On:
The power switch is located in the center of the front panel of the VK-6200. Pressing on the
top of switch bar will turn the unit ON and OFF, provided the VK-6200 is not in its Standby
mode (see below for operation in Standby mode).
Front Panel Indicators:
There are three LED indicators on the front panel of the VK-6200:
1. Blue Power ON indicator
2. Green STANDBY indicator.
3. Red FAULT indicator
Their operation is described below:
Blue Power On indicator:
It comes ON when the unit is powered up. Pressing the power switch will make the unit
alternate between its ON and OFF state, provided it is not in its STANDBY mode.
NOTE: Your VK-6200 is equipped with a smart power ON management circuit. This
circuit applies power only to those channels that are installed. It does so in sequence,
minimizing the initial power surge in order not to stress your power line. When turning the
VK-6200 ON you will hear several relay clicks inside the unit. The number of clicks will be
equal to the number of channels installed in the chassis.
When additional channels are installed in the VK-6200 chassis, the circuit will
automatically recognize them and power them up in proper sequence.

Green Standby Indicator:
The green indicator comes ON when the unit is in its Standby mode. In this case, pressing
the POWER switch will make the unit alternate between OFF and Standby states.
NOTE: VK-6200 is automatically switched into its Standby mode when a remote control
plug is installed in the Remote IN jack on the back panel. In that case VK-6200 can be
only turned ON by application of the remote 12V trigger signal to the remote IN
connector. A 3.5mm Mono Phone Plug is used for the remote control connector. It
should be wired as follows:
Case (Outer Lead) Negative
Center Lead +12V Trigger Source
Red Fault Indicator:
The red FAULT indicator will come ON when the unit detects any kind of fault condition
with any of its channels.
The possible reasons include:
1. Channel overheating. In this case the Fault LED will be flashing until the channel has a
chance to cool down to its normal operating temperature. At this point the Fault indicator
will turn OFF.
2. One of the amplifier channels had detected an internal fault. In this case the Fault LED
will stay ON. It is advisable in such a case to turn the VK-6200 OFF for several minutes
and then turn it ON again. In some cases this may clear the fault and the unit may resume
normal operation.
3. If the RED Fault indicator stays ON permanently, then the unit may have an internal fault
that requires service.

Remote Control Connectors:
The VK-6200 is equipped with Remote IN and OUT connectors mounted on its back panel.
These allow the amplifier be turned ON remotely from any controller equipped with +12V
trigger signal output. The external +12V trigger voltage should be applied to the Remote IN
connector (see above on the proper way to wire the remote control plug). In cases when
multiple units should be triggered by the same remote control signal, the Remote OUT
connector can be used to transmit the +12V signal to the next unit. The same type 3.5mm
Mono plug should be used for that purpose as well.
Fuse Protection:
The VK-6200 is protected by a main fuse located on its back panel:
This fuse is rated as follows:
110/120VAC configuration 15A Slow Blow
200/230/240VAC 10A Slow Blow
NOTE: Please make sure that the fuse is replaced only with the same type
and rating fuse.
CAUTION:
Make sure that the VK-6200 is turned OFF and disconnected from the power line
before proceeding with checking or replacing fuses.
A blown fuse in the VK-6200 is an indication of a serious problem. If a replacement fuse
fails as well, no further attempts at servicing the unit should be undertaken. Please contact
the factory for professional service.

Servicing
The Balanced Audio Technology VK-6200 does not require periodic service to maintain its
high performance. In case of malfunction, (when replacing fuses fails to eliminate the
problem) please direct any further service inquiries to the factory.
Cleaning
To remove dust, occasionally wipe the front and top surfaces of your VK-6200 with a damp
soft cloth. If fingerprints appear, you may use a mild, non-alkaline soap solution. Do not use
abrasive cleaners, as they may damage the fine finish of the unit.
Specifications:
Number of Channels From 2 to 6
Output Power into 8 Ohm 200Wpc
Output Power into 4 Ohm 400Wpc
THD at Rated Power Less than .2%
Gain: 23dB in balanced mode
29dB in single-ended mode
Input Impedance 47kΩeach phase
Dimensions: 19” x 10.5” x 23”
Weight 100lb for two-channel chassis
20lb each additional channel

Five Year Limited Warranty
Terms and Conditions
1. Limited Warranty
Upon receipt of the attached warranty registration form, Balanced Audio Technology warrants the purchased
product to be free from manufacturing, materials, and workmanship defects for five years from date of original
purchase, subject to the following conditions. Failure to return the enclosed registration form within 30
days from original purchase will result in a warranty period of one year from the date of manufacture.
2. Limited to Original Purchaser
This warranty is for the sole benefit of the original purchaser of the covered product, and may not be transferred
to a subsequent purchaser of the product.
3. Conditions and Limitations
This warranty is subject to certain conditions and limitations, as follows. This warranty is void and inapplicable
if the product has not been used in accordance with the instructions found elsewhere in this manual, or if it has
been misused or abused, damaged by accident or neglect, or in transport once in possession of the purchaser.
The warranty is also void if the product has been repaired, modified, or tampered with by anyone other than
Balanced Audio Technology or its specifically authorized agents.
4. Remedy
If this product contains a materials, manufacturing, or workmanship defect that cannot be repaired at the
dealership where the product was purchased, it must be packed in original packaging and returned to Balanced
Audio Technology via insured freight, at the owners expense. If replacement packaging materials are required,
they will be supplied by the factory at a nominal charge. Returned products must be accompanied by a
written description of the defect, and a return authorization number (available from the factory via
phone or fax). Upon receipt of defective product, Balanced Audio Technology agrees to repair the product
without charge for parts (except vacuum tubes if the unit is more than one year old), or labor. The product will
then be returned via prepaid, insured freight, with carrier at the sole determination of Balanced Audio
Technology. This constitutes the purchasers sole remedy.
5. Design Changes
Balanced Audio Technology reserves the right to modify its products or change specifications at any time
without obligation or liability to previous purchasers.
6. Miscellaneous
Any implied warranties relating to the above product shall be limited to the duration of this warranty. This
warranty does not extend to any incidental or consequential costs or damages to the purchaser. This warranty
gives you specific legal rights. You may also have other rights which vary from state to state.