SPECIFICATIONS
VCRunner
PurePath or OptiMatch
TM
Attenuator type:
Tapped auto transformer.
Switch:
12 position rotary, make-before-break contacts, low torque specifications for
smooth feel.
Connector:
Screw-tight type; 1-stereo input, 1-stereo buss, & 2-stereo outputs
Power rating:
UL Listed @ 72 Watts RMS continuous, 35 Hz- 20 KHz, 216 Watts audio.
Core Saturation:
Studies reveal that transformer core saturation @ 35 Hz is 72 Watts.
Transformers:
Tri-filar wound for flat response and minimum phase shift, grain-oriented,
-34 dB in 12 steps, 8 steps @ -3 dB each, 1 step @ 4 dB, 1 step @ -6 dB,
last step OFF.
Mounting:
Fits most standard single gang junction boxes.
TM
PurePath :
This is a non-impedance matching version. When used must have impedance
matching else where.
TM
OPTIMATCH :
With this option it will match impedance for almost any situation. Mechanical index
permits presetting load impedance multiplication by X2, X4, X8, X16,which can be
changed at any time.
INSTALLATION
1.
Make connections by stripping the wire insulation back about 3/16". Twist any loose strands tightly.
2.
Insert the wires from the amplifier into the INPUT openings of the connector, hot to hot and ground to
ground, then tighten the screws. Check for any loose strands that might cause a short circuit. Make
sure the metal part of the screw connector engages the bare wire, NOT the insulation.
3.
Similarly, connect speaker wires to the control OUTPUT openings and tighten screws.
4.
If using the impedance matching feature of the OPTIMATCH(tm) control, set the index following the chart
below. To set, remove knob and loosen nut to reposition index. Make sure index is not between detent
positions and tighten.
5.
Install the control in its operating location. (SUGGESTION: Leave control 3 or 4 positions CCW from
maximum before firing up the system for the first time to avoid "blasting" the speakers, while still having
enough sound to observe operation.
#4 Ohm
Speakers
Per Channel
#8 Ohm
Speakers
Per Channel
Load
(Ohms)
Tap Setting
For Matchit(tm)
No. of Available
Steps for
Optimatch(tm) Controls
2
3
4
5
6
2
3
4
5
6
7
8
9
10
11
12
4.0000
2.6667
2.0000
1.6000
1.3333
1.1429
1.0000
0.8889
0.8000
0.7273
0.6667
X2
X4
X4
X8
X8
X8
X8
X16
X16
X16
X16
11
10
10
9
9
9
9
8
8
8
8
X32
X16
X8
X4
X2
FULL
ON
X64
X128
X256
X512
X1024
OFF
DEFAULT
FACTORY
SETTING
IMPEDANCE MULTIPLES
We do not recommend wiring more than 12 Optimatch(tm) controls in parallel. In these instances more impedance protection
should be inserted before the volume controls. The OC-12 or MS-12 is a good choice in this case.
OPTIMATCH(tm) is a new concept in self-impedance matching controls. It can be used either as a full range
volume control, or as an impedance matching volume control that can be adjusted to meet the requirements of your
installation. One simple adjustment can be made when the control is connected, and can be changed to accommodate
additions to the installation at any time. It is easily retrofitted to almost any existing system.
Listed
P11 CCC 2
94V 0
Audio Equipment
Installation must be made by qualified service personnel, and must meet all local codes.
TECHNOLOGY
INSTALLATION MANUAL
2000 - 10/1/00
(STEP 10)
(STEP 11)
(STEP 12)
(STEP 1)
(STEP 2)
(STEP 3)
(STEP 4)
(STEP 5)
(STEP 6)
(STEP 7)
(STEP 8)
(STEP 9)
Not actual
peg position
