Mackie CR1604 MODIFICATIONS-O-RAMA, 6.TIE SOLO TOGETHER ON TWO OR MORE CR-1604s, b b, leges void.”, “Any internal, CR-1604MUST be per, modification of the

MODIFICATIONS-O-RAMA

The CR-1604 can be modified to move the

CHANNEL ACCESS mods

position of AUX Sends and Channel

STOCK CHANNEL

Inserts in the signal flow. Unless you

MOD 4

MOD 5

ACCESS JACK

have the right tools and have tweaked

PRE-EQ

POST-EQ

POST-EQ

PRE-FADER

PRE-FADER

POST-FADER

with circuitry before, leave these

PRE MUTE/ALT

PRE MUTE/ALT

PRE MUTE/ALT

MUTE

mods to a pro. Our Official Word on

EQ

CH. FADER

ALT 3/4

TO

modifications is: “Any internal

0

HI

+20

ALT

3/4

modification of the

–15

+15

BUS

1

CR-1604 MUST be per-

0

MID

MUTE

U

ALT 3/4

INPUT

PREAMP

formed by a competent

–12

+12

TO

technician. Mackie Designs ac-

0

LO

MAIN

cepts no responsibility in the event of

00

1/2

–15

+15

BUS

improperly performed modifications

EQ

STOCK

or other damages and, in such

MOD 1

MOD 2

MOD 3

AUX SEND

cases, may declare warranty privi-

PRE-EQ

POST-EQ

POST-EQ

POST-EQ

leges void.” Be VERY careful!

PRE-FADER

PRE-FADER

POST-FADER

POST-FADER

PRE MUTE/ALT

PRE MUTE/ALT

PRE MUTE/ALT

POST MUTE/ALT

Here are the most common CR-

AUX SEND mods

1604 modifications, six of which are detailed

on the following pages.

1.CONVERT AUX SENDS TO MONITOR SENDS (Pre-EQ, Pre-Fader, Pre-Mute/ALT Switch).

Can be done on any or all of channel strips 1 to 16. Each channel modification requires cutting one or more circuit traces and adding a small jumper wire. On each strip, you can modify Sends 2, 3, 4 or any combination thereof. Note: Converting AUX 3 will also convert AUX 5; converting AUX 4 will also convert AUX 6. See the next page.

2.CONVERT AUX SENDS INTO MONITOR SENDS WITH EQ (Post-EQ, Pre-Fader, Pre- Mute/ALT Switch).

Can be done on any or all of channel strips 1 to 16. Each channel modification requires cutting one or more circuit traces and adding a small jumper wire. On each strip, you can modify Sends 2, 3, 4 or any combination thereof. Note: Converting AUX 3 will also convert AUX 5; converting AUX 4 will also convert AUX 6. See pg. 31.

3.CONVERT AUX SENDS TO IGNORE MUTE/ALT STATUS (Post-EQ, Post-Fader, Pre- Mute/ALT Switch).

Can be on any or all of channel strips 1–16. Converts ALL AUX sends on each channel strip. Requires cutting a circuit trace, and adding both a small jumper wire and a

20,000Ω resistor. See pg.32 of this section.

4.CONVERT CHANNEL ACCESS (INSERTS) TO PRE-EQ / PRE-FADER.

Can be performed on any or all of the first eight CR-1604 channel strips. Requires cutting three circuit traces and adding both a small jumper wire and a 22μf/16V electrolytic cap on each channel strip. See pg. 33 of this section.

5.CONVERT CHANNEL ACCESS (INSERTS) TO POST-EQ / PRE-FADER.

Can be performed on any or all of the first eight CR-1604 channel strips. Requires cutting three circuit traces and adding both a small jumper wire and a 22μf/16V electrolytic cap on each channel strip. See pg. 34 of this section.

6.TIE SOLO TOGETHER ON TWO OR MORE CR-1604s.

See pg. 35 of this section.

TECH

STUFF

POD

b b

a

MAIN CHASSIS

POD

MAIN CHASSIS

POD

29