Dynasty ProAudio PMC-2 User manual

PMC-2 Passive Studio Monitor Volume
Controller Owners Manual
The Dynasty ProAudio PMC-2 is a 2 x 2 premium passive stereo monitor and
volume controller for professional computer-based studio applications and home
use. It is designed for a precise volume control of analog audio signals and is
inserted between analog signal sources and active speakers or amplifiers, also
can be connected between a PC sound card or audio interface and monitor
speakers, simply delivers an attenuated signal for pure transparent, without
compromising your audio which is one of the man benefits of passive volume
attenuation. It is ideal for quick and easy level control by using your fingngertips
with a large rotary control knob. The PMC-2 is completely passive and does not
require power supply, you can keep your software masters at unity and attenuate
the audio to your active monitor speakers precisely with the PMC-2 while main-
taining maximum audio resolution. The unit features balanced combo XLR /
Phone Jack, RCA Audio Line and Mini Jack TRS 3.5mm inputs, DIM & Mute/Mo-
no switches, XLR Balanced/Phone Jack/Mini Jack output, and a large rotary
volume control.

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1. Volume Attenuation Control
The PMC-2 rotary control allows precise level adjustments from 0 to - 50dB. Produce the required amount of
volume by rotating the volume control in a clockwise direction to increase the volume (reduce the amount of
attenuation) or counter-clockwise to reduce the volume and increase the amount of attenuation.
2. Mute Operation
The on/off Mute Switch on the top panel allows engagement of the PMC-2 built in mute function, the PMC-2
audio signal output will be disabled when the Mute Switch is engaged to provides the same result as turning
the volume knob all the way down.
3. Stereo / Mono Switch
Can be switched to stereo or mono signal, the mono button sums your signal to mono (great for checking
mixes for phase issues)
4. DIM Switch
Pressing this button turns down the signal going to the monitor outputs by 20 dB, this allows you to essentially
“turn down” the speakers to converse without affecting the speaker level.
5. Source Input Select Switch
Engage / disengage the INPUT switch to select the source you would like to monitoring, leave this switch
disengaged as DOWN position to select input source A (Combo Jack Connector). Press this switch as UP
position to select input source B (RCA/AUX Connectors)
6. Monitor Output Select Switch
The OUTPUT section provides the possibility to select which outputs are currently active via the A (XLR
Connector) and B (TRS/AUX as Phone Jack & Mini Jack TRS Connectors) buttons
7. Source Input (A & B)
The main stereo inputs are located on the rear panel and feature XLR balanced / Phone Jack unbalanced
combo, Mini Jack TRS, RCA input connectors for Left and Right input signal, these are ideal for connecting
your main audio source
COMBO (A): Simply connect your cables directly to the unit with XLR balanced or Phone Jack 1/4" cables
RCA (B): Simply connect your cables directly to the unit with stereo RCA or Mini Jack TRS cables.

8. Monitor Output (A & B)
The PMC-2 stereo outputs are also located on the rear panel and feature a pair (Left and Right) of XLR
balanced and Phone Jack 1/4” unbalanced analog output connectors, those monitor outputs are fed by the
“control room bus.”
This is the signal path fed from the source input currently selected with the source select button, the level of
each stereo output may be trimmed using the top panel volume rotary control to balance the level between
monitor speakers.
XLR (A): Use the XLR balanced cable to connect the inputs of powered studio monitors, or to a power
amplifier driving passive speakers.
TRS (B): Use the Phone Jack 1/4" or the Mini Jack TRS cable to connect PMC-2 to your studio monitors, or to
a power amplifier driving passive speakers.
The PMC-2 can be used with either balanced or unbalanced signals. Because the main stereo signal path
through the PMC-2 is passive, like a ‘straight-wire’, you should not mix balanced and unbalanced connections.
Doing so will ultimately ‘un-balance’ the signal through the PMC-2. If this is done, you may encounter
crosstalk or bleed. For proper performance, always maintain either a balanced or unbalanced signal
flow through the PMC-2 by using appropriate cables for your equipment. Most mixers, workstations and
near- eld monitors can work either balanced or unbalanced so this should not pose a problem when used with
the proper interface cables. The diagram below shows various types of balanced and unbalanced audio
cables.

PMC-2 Setup
The PMC-2 Studio Monitor Volume Controller is typically connected to the output of your mixing console,
digital audio interface or laptop computer represented as a reel-to-reel machine in the diagram. The outputs of
the PMC-2 connect two pairs of stereo monitors (or to a power amplifier driving passive speakers).
The PMC-2 top panel is configured with a series of recessed trim controls. These set & forget trim controls are
used to ne tune the output level going to each component so that when you switch from one set of monitors to
the other, they play back at relatively similar levels. Although most active monitors are equipped with level
controls, getting to them while listening is difficult. For using the PMC-2, now you no need to reach around the
back of studio monitor to make the adjustments, just stay on the engineer’s seat to let you compare how your
mix will translate on different monitors which in turn will help deliver more convincing mixes to the audience.
Before making any connections always ensure levels are turned down or equipment is turned off. This will
help avoid turn-on transients that could harm sensitive components like tweeters. It is also a good practice to
test signal ow at a low volume before turning things up. There is no power switch on the PMC-2, as soon as
you plug in the power supply it will turn on.
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