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5

12 Amp

120 V AC 60 Hz

Fuse

Power

External

Speaker

On

High-Pass

Full-Range

Input

Outputs

Protection

Power

CAUTION

CAUTION

RISK OF ELECTRIC SHOCK

RISK OF ELECTRIC SHOCK

DO NOT OPEN

DO NOT OPEN

Off

Sub-Out

Neutrik Pins:

1 + or 2 + = (+)

1 - or 2 - = (-)

Digital 

Amplifier

Designed by ETI Sound Systems / 
B-52 Pro Audio, Huntington Park, CA 
Model: ACT-18. May be covered by 
one or more patents pending.

MADE IN U.S.A.

WARNING: To reduce the risk or fire or 

electrical shock do not expose this equipment 

to rain or moisture. Please read instructions 

prior to operation.

MADE IN U.S.A.

B 52

-

L

R

Level

Phase

0

180

L

R

ON

OFF

ACT-18

1

2

3

4

5

6

7

8

9

10

11

12

ACT-18 DIGITAL AMPLIFIER

Summary of Contents for ACT18

Page 1: ......

Page 2: ... time 14 Refer all servicing to qualified personnel Servicing is required when the ACT 18 has been damaged in any way such as when power cord or plug is damaged liquid has been spilled or objects have fallen into the ACT 18 cabinet the ACT 18 has been exposed to moisture or rain does not operate normally or has been dropped 15 To reduce the risk of fire or electric shock do not expose the ACT 18 t...

Page 3: ...eaker on a pole designed for a single speaker u Do not mount a speaker above the subwoofer in windy conditions u B 52 Pro Audio recommends that you not lift the speaker above the subwoofer alone Hearing damage prolonged exposure to excessive SPL B 52 Pro Audio speakers especially the ACT 18 S are capable of producing sound pressure levels SPL suf ficient to cause permanent hearing damage to perfor...

Page 4: ...s Send stereo high pass signal 120 Hz and above directly to active full range speakers or through a rack mount amplifier to passive speakers 18 External Speaker On Off Switch Turns Speakon NL 4 connector and external subwoofer on and off When only using the ACT 18 turn this switch off When an external non powered subwoofer ACT 18S is connected turn this switch on NEVER turn switch on or off while ...

Page 5: ... 2 1 or 2 Digital Amplifier Designed by ETI Sound Systems B 52 Pro Audio Huntington Park CA Model ACT 18 May be covered by one or more patents pending MADE IN U S A WARNING To reduce the risk or fire or electrical shock do not expose this equipment to rain or moisture Please read instructions prior to operation MADE IN U S A B 52 L R Level Phase 0 180 L R ON OFF ACT 18 1 2 3 4 5 6 7 8 9 10 11 12 A...

Page 6: ...6 Connecting Your ACT 18 To Active Full Range Speakers As well as the ACT 18S Passive 18 subwoofer Connecting Your ACT 18 To Passive Full Range Speakers As well as the ACT 18S Passive 18 subwoofer ...

Page 7: ...attributed to defects in material or workmanship or serv ice repair modifications to the cabinet which has not be authorized or approved by E T I Sound Systems Inc If this product is defective in materials or work manship as warranted above your sole remedy shall be repair or replacement as provided above See provided Limited Warranty card for additional terms and conditions INCIDENTAL OR CONSEQUE...

Page 8: ...E T I SOUND SYSTEMS INC 3383 Gage Avenue Huntington Park CA 90255 Phone 323 277 4100 Fax 323 277 4108 National 1 800 344 4ETI Internet www B 52PRO com E mail info B 52PRO com 8 ...

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