YORKVILLE Power MAX Manuel De L'utilisateur page 3

Introduction
Welcome to POWERMAX, possibly the most advanced, most powerful, mixer / amplifier in the world. Comprehensive mixing facilities are
combined with a choice of...
• 255 onboard digital effects presets (or dual digital effects systems with 16 presets each)
• A speaker processor
• Four built-in power amplifiers with over 2,150 Watts in total
• Three graphic EQ's, channel EQ with sweepable mids
• Channel input overload protection
• Solo and mute functions and much more...
This manual will outline all the various functions and how they interact. Realizing that some POWERMAX users may be unfamiliar with
certain features, we include user tips and additional information, which appears separately in the applicable sections.
For general information about mixing and other facets of sound-reinforcement check out our
P.A. User Guide available on the net... (http://www.yorkville.com).
Input Channel Features
Input Overload Protection
Mono input channels 1 to 6 in the POWERMAX- 16 (1 to 12 in the POWERMAX-22) feature
CHANNEL OVERLOAD PROTECTION - a sonically transparent limiting function suitable for sources
such as bass guitar or bass amp, bass drum, mics, pop-prone vocal mics, feedback-prone mics (e.g. for
flattop guitar, and other troublesome sources).
Each channel features a PROTECT LED to indicate when the overload protection is working. A single
DEFEAT button switches this feature on all groups of six channels simultaneously.
INSERT Jacks
The remaining mono channels feature INSERT jacks. These are 1/4-inch Tip-Ring-Sleeve (TRS) connec-
tors, which combine, send and return functions for
patching outboard signal processing directly into
a channel. A suitable patch cable for this function
(e.g. the Yorkville model PC-6iSPH) would consist
of a single TRS (stereo) 1/4-inch plug and two
lengths of shielded cable with a common ground
branching to two regular (mono) 1/4-inch plugs.
The TRS wiring is Tip = send, Ring = return and
Sleeve = ground. Since the PC-6iSPH comes with
the leads marked Tip and Ring, you would connect
the Tip plug to the input of the signal processor
(EQ, compressor, echo, etc.) and connect the Ring
plug to the processor's output. The TRS (stereo)
plug would go into the INSERT jack. The send
function is post-GAIN and post-HPF (high-pass-filter).
Alternately, the INSERT jack may be employed to send a channel to a powered monitor (some people
want to hear only themselves). Simply use an unbalanced shielded patch cable – in this one case, a bal-
anced cable will not work. Be sure to insert the plug only to the first "click" when using the INSERT as a
channel send, otherwise the signal will be interrupted and the channel will not work. If this happens, you
have inserted the plug too far. Simply pull the plug out gently to the first stop.
MIC Inputs
The POWERMAX active input circuitry will accept microphones with impedances ranging from 50
ohms to 10,000* ohms. All low impedance mics will be compatible. Phantom power, covered under
PHANTOM POWER Switch and LED, later on in the manual, is available on all MIC inputs when acti-
vated. Although this feature is for condenser microphones, dynamic mics may be connected while it is
activated with no ill effects.
* Although it would be customary to plug high impedance mics into the BAL LINE jacks, most of
them will also work in the MIC inputs, provided the mic's built-in XLR connections are pin 1 and
pin 2. Simply use low impedance XLR to XLR mic cables.
PHANTOM POWER Switch and LED
48 Volt PHANTOM POWER is available on channels 1 through 12 on the POWERMAX- 16 (1
through 18 on the POWERMAX-22). The PHANTOM power ON/OFF button is located on the front
of the mixer, beside the HEADPHONE jack and the PHANTOM POWER LED is in the upper right
area of the control panel.
Phantom power is available for condenser microphones. It may be applied to channels with regular
dynamic mics connected with no problems. When connecting mics it is safest to turn off phantom
power to avoid loud pops.