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IMPORTANT SAFETY INSTRUCTIONS

WARNING: When using electric products, basic cautions should always be followed, including the following:
1. 

Read all safety and operating instructions before using this product. 

2. 

All safety and operating instructions should be retained for future reference.

3. 

Obey all cautions in the operating instructions and on the back of the unit. 

4. 

All operating instructions should be followed.

5.

This product should not be used near water (i.e., a bathtub, sink, swimming pool, wet basement, etc.)

6.

This product should be located so that its position does not interfere with its proper ventilation. It should not be placed flat against a wall 
or placed in a built-in enclosure that will impede the flow of cooling air.

7.

This product should not be placed near a source of heat such as a stove, radiator, or another heat producing amplifier.

8.

Connect only to a power supply of the type marked on the unit adjacent to the power supply cord.

9.

Never break off the ground pin on the power supply cord. For more information on grounding, write
for our free booklet “Shock Hazard and Grounding.”

10. Power supply cords should always be handled carefully. Never walk on or place equipment on power supply cords. Periodically check cords

for cuts or signs of stress, especially at the plug and the point where the cord exits the unit.

11.   The power supply cord should be unplugged when the unit is to be unused for long periods of time.

12.   If this product is to be mounted in an equipment rack, rear support should be provided.

13.   Metal parts can be cleaned with a damp rag. The vinyl covering used on some units can be cleaned with a damp rag or an ammonia-based

household cleaner if necessary. Disconnect unit from power supply before cleaning.

14.   Care should be taken so that objects do not fall and liquids are not spilled into the unit through the ventilation holes or any other openings.

15.   This unit should be checked by a qualified service technician if:

a. The power supply cord or plug has been damaged. 
b. Anything has fallen or been spilled into the unit. 
c. The unit does not operate correctly. 
d. The unit has been dropped or the enclosure damaged.

16.   The user should not attempt to service this equipment. All service work should be done by a qualified service technician.

17.   This product should be used only with a cart or stand that is recommended by Crest Audio, Inc.

18.   Exposure to extremely high noise levels may cause a permanent hearing loss. Individuals vary considerably in susceptibility to noise induced

hearing loss, but nearly everyone will lose some hearing if exposed to sufficiently intense noise for a sufficient time. The U.S. Government’s
Occupational Safety and Health Administration (OSHA) has specified the following permissible noise level exposures.

Duration Per Day In Hours

Sound Level dBA, Slow Response

8

90

6

92

4

95

3

97

2

100

1 1/2

102

1

105

1/2

110

1/4 or less

115

According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors for the ear
canals or over the ears must be worn when operating this amplification system in order to prevent a permanent hearing loss if exposure is in excess
of the limits as set forth above. To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all persons
exposed to equipment capable of producing high sound pressure levels such as this amplification system be protected by hearing protectors while
this unit is in operation.

SAVE THESE INSTRUCTIONS!

Summary of Contents for SmarTube ST2

Page 1: ...ST 2 Dual Channel SmarTube Mic Preamp...

Page 2: ...raci n Ce symbole est utilis dans ce manuel pour indiquer l utilisateur la pr sence d une tension dangereuse pouvant tre d amplitude suffisante pour constituer un risque de choc lectrique Ce symbole e...

Page 3: ...filter An Insert Unbalanced I O with separate 1 4 Send and Return jacks is provided on the back panel Equalization consists of a shelving Low and High section and two fully adjustable Low Mid and Hig...

Page 4: ...Mid parametric section is a symmetrical bell shaped type and provides a 15 dB boost cut within the frequency range 100 Hz 3 kHz and bandwidth range 2 1 5 octaves The High Mid EQ sections have identica...

Page 5: ...manuals An unbalanced to balanced impedance converter interface adapter can also be used to isolate the microphone input from the 48 V phantom power supply 5 PHANTOM POWER LED Illuminates green when...

Page 6: ...ter frequency of the Low Mid EQ which varies between 500 Hz and 15 kHz 16 HI MID BANDWIDTH This control changes the bandwidth Q of the bell shaped curve of the Low Mid EQ The BW ranges from 2 to 1 5 o...

Page 7: ...the Channel Two signal is panned between A and B bus In Mono position the Channel Two signal is sent only to B bus bypassing the Pan pot 26 SIZZLE SWITCH When pressed this switch introduces a slight 3...

Page 8: ...sengaged When the Stereo Mono switch 25 is engaged only the Channel One signal is routed to this output bypassing the Pan control The balanced and unbalanced outputs can be used simultaneously 36 BUS...

Page 9: ...dB Pin 1 Ground Min Gain 14 20 30 Pin 2 20 dB Pin 3 Line 20k Max Gain 19 12 8 Balanced 1 4 TRS Input 12 dB Tip Min Gain 7 0 21 Ring 0 dB Sleeve Gnd Insert 10k NA 7 0 21 Unbalanced 1 4 TS Return Tip Sl...

Page 10: ...oost Cut 15 dB Frequency 12 500 Hz Low Cut Filter Frequency 75 Hz Mic input only Slop 24 dB octave ST 2 SPECIFICATIONS Output Specifications Input Nom Min Load Impedance Ohms Bal Unbal Connector Nom M...

Page 11: ...minal settings gains minimum LED Indicators Switch closure indicators 10 segment multicolor LED ladder indicates output level 0 dB 0 dBu 1 4 unbalanced outputs and 4 dBu XLR balanced outputs Phantom P...

Page 12: ...rranty Crest Audio will pay the return shipping charges How To Get Warranty Service 1 Take the defective item and your sales receipt or other proof of date of purchase to your Authorized Crest Audio D...

Page 13: ...hold cleaner if necessary Disconnect unit from power supply before cleaning 14 Care should be taken so that objects do not fall and liquids are not spilled into the unit through the ventilation holes...

Page 14: ...14 NOTES...

Page 15: ...15 NOTES...

Page 16: ...es and specifications subject to change without notice Crest Audio Inc 100 Eisenhower Drive Paramus NJ 07652 USA TEL 201 909 8700 FAX 201 909 8744 www crestaudio com 2001 Printed in the U S A 04 01 80...

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