YORKVILLE POWERMAX 1622 Owner'S Manual Download

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Given the amount of available power, it is unlikely that you will be pushing the system hard enough

to run completely out of power amp headroom. If that does happen however, built-in limiting will

ensure that no clipped signals endanger your speakers. If the

AMPLIFIER FULL POWER LED

is on con-

tinuously for any particular amp, reduce the master for that amp. Occasional flashing simply means

that the limiter is reacting to peaks and requires no action on your part.

Speaker Connections

Speakon™ and 1/4-inch speaker outputs are located on the back panel and are identified as

LEFT (A),

RIGHT (B), MON1 (C) and MON2 (D).

All connectors, for a given amp, are wired in parallel. The

minimum impedance of

4-ohms

per amp is for full power. Loads below

4-ohms

will be tolerated, but

will cause

reductions

in output power.

You may connect one or two

8-ohm

speakers or one

4-ohm

speaker to each amplifier. It is possible to

connect more than this, but output power will be reduced to levels which are safe for the output transistors.

LAMP Connector

Connects a

12VDC

gooseneck lamp with a

BNC

connector (e.g.

Yorkville

model

GNL600

– max current 500mA -

System Power LED

Located to the left of the

AMPLIFIER FULL POWER LEDs

, this is the

pilot light.

POWER Switch and Circuit Breaker

These are located on the back of the mixer by the

SPEAKER

connections. The breaker is rated

15 amps

(8 amps

for export models

)

Basic Operating Instructions

Note A: For in-depth coverage of specific features, hookups, etc., look under the appropriate fea-

ture heading in the main body of the manual.

1. Connect the power cord to a grounded AC outlet.
2. Connect mics and line-level sources to the mono channels, tape decks or CD players to the Stereo

channels. Do not connect a phono turntable without using a phono preamp.

3. Set all channel levels and masters at "0" (for now).

Note B: The following should all be done during a sound check

4. With signals coming into the channels and faders off, press SOLO and adjust the channel GAIN

controls for 0dB on the VU-METER (PFL).

5. Connect any external effects to the EFX2 SEND and RETURN jacks and/or the AUX SEND and

RETURN jacks. Now set the desired SEND and RETURN masters at halfway.

6.  Set channel EQs, main and monitor graphic EQs flat (at center). If unsure of Mid-Sweep, sat at 2.5kHz.
7.  Turn up the desired channels' EFX1 and/or EFX2 and/or AUX sends halfway.
8.  Connect main and monitor speakers to their designated outputs on the back panel (2 x 8-ohms or

1 x 4-ohms per amp).

9. Gradually bring up the channel fader levels to achieve the desired channel mix though the main

PA. Set the MASTERSfor overall level.

10. Bring the main L&R faders up to the "0" reference setting and turn the MON1 and/or 2 MASTER

SENDS up to 5. Set the Channel/s to "0."

11. Adjust channel EFX sends and masters as required for the desired effects mix through the main system.
12.Per instructions from the stage, adjust the MON1 and/or MON2 channel sends and the MON1

and/or MON2 EFX1 or 2 RETURN LEVELS.

13. Adjust the L&R, MON1 & 2 EQ's as needed. See under the feature headings for more details.