Knoll VC220 Specifications

VC200 Series
The digital volume control is a two-piece system
consisting of a VC220 or VC220pm controller and a
VC200 keypad, VC201 keypad or VCI28 computer
interface. The controller is usually located in an electrical
room, low voltage panel, closet or near the stereo. From
one to three VC200 or VC201 keypads can be
connected to each VC220/VC220pm. The keypad is
connected to the VC200/VC220pm controller with low
cost cat3 or cat5 wire.
The VC220/VC220pm V-pad design does not generate
heat like a transformer or L-pad that can dissipate large
amounts of power in low and off positions creating early
failures, wall damage or even a fire hazard. Nor is there
any sonic degradation at low operating levels. Instead the
VC220/VC220pm presents the listener with a full
frequency response and original dynamic range at all
volume positions and power levels. The stereo signal
passes to the speakers without the compression effect
associated with all transformer based volume controls.
Knöll V-pad transformer-free technology is the best and
most reliable solution for new construction, renovations
and upgrades of existing stereo systems.
VC200
VC201
Wire Requirements
Speaker wire for the VC220/VC220pm should be
copper, 14-18 gauge. Runs longer than 33' (10m) should
be minimum 14 gauge wire. Two wire pairs (left & right)
are run from the stereo amplifier or receiver (or looped
from any other VC220pm input) to the VC220pm
inputs, then one wire pair continues to each speaker.
When "pre-wiring", leave an extra 3' (1m) at each end to
allow easy component installation.
A cat 3 or cat 5 eight conductor wire is run from the
VC200pm to the nearest keypad. Wire from multiple
keypads can be lopped or home run. Keypads with
internal infrared receivers do not require any extra wiring
from the keypads to the controllers.
A 12VDC power supply (such as the PS1202) for the
VC220/VC220pm's needs to be located at the stereo and
plugged into the receiver and plugged into the receivers
switched outlet. One PS1202 can power upto 5
VC220pm's.
Knöll Systems
tel: 604.272.4555
fax: 604.272.5595
Digital Stereo Volume Controls
VC220/VC220PM
Control Interface
In America:
145 Tyee Drive
Point Roberts, WA 98281
Volume Control Frequency Response
With identical paralleled inputs and 8-ohm output loads,
the -12dB attenuation output frequency
response of a Knöll transformer free vs. a top quality
major brand autotransformer volume control is shown.
0dB
-12dB
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-24dB
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-36dB
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-48dB
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-60dB
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-72dB
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10Hz
Both Stereo volume control inputs
Top of the line major brand autotransformer volume
control output frequency response
Knöll VC22O/VC220pm tranformer-free volume
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control output frequency response
Specifications
Peak RMS Power Rating:
Continuous RMS Power:
Frequency Response:
VC200/VC201
Mount Depth:
Speaker Impedance:
Connection:
Colors and Styles:
VC220/VC220pm Power:
VC220/VC220pm Controller: Wall mount 6.5" x
Keypads do not include cover plates.
Your Authorized Knöll Dealer
Specifications subject to change without notice
In Canada:
11791 Machrina Way, #120
Richmond, BC V7A 4V3
.
-6dB@58Hz
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100Hz 1kHz 10kHz
200 watts/channel
100 watts/channel
DC to 500,000 Hz at
all power levels upto
350 watts +/-0.1 dB
1.5" (38 mm)
4-16 ohms (single or
multiple speakers)
Detachable screw
terminals
Decorawhite,almond
or ivory
12VDC 60mA max
3.4" x 1.75"d
www.knollsystems.com
.
-6dB@11.5kHz
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January 2001