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DSP 4x4 Operations Manual Rev E 

Page 7 

Table of Contents

 

 

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Pre-wired unbalanced connectors are available for purchase from Stewart Audio. The summing 
adapters will properly sum a stereo source for use with the mono input on the rear of the DSP 4x4 
without causing sound cancellation. Part numbers are found below the diagrams. 

5.3.3.3

 

Phantom Power 

The DSP 4x4 is designed with software-selectable 24VDC phantom power on all 4 channels capable 
of supplying 25mA per channel. This power level is sufficient to operate most condenser 
microphones in a typical DSP 4x4 application. 

Phantom power can be switched on/off via the Input Block of th

Stewart Audio Control Center 

Software

 or using RS–232 commands documented in Section 5.3.5. 

When phantom power is being supplied on a channel, the appropriate LED indicator on the rear of 
the DSP 4x4 will illuminate. 

Caution: Microphones or other input devices which do not require phantom power can be permanently 
damaged by the application of phantom power.  Stewart Audio will not be held responsible for damage 
to these devices. 

Caution: Phantom power should not be used with the summing adapters in Section 5.3.3.2.  The power 
will be dissipated in the adapter and will not reach the microphone or other input device.

 

5.3.4

 

Output Connections 

Your DSP 4x4 is provided with a 3-pin Euro-style connector for each output. This connector offers a 
balanced output to interface with the input of another device.  

ADPT-RCA 

Mono  

Female RCA 

ADPT-SUMRCA 

Stereo 

Female RCA 

ADPT-SUM35 

Stereo 

Female 3.5mm 

Содержание DSP 4x4

Страница 1: ...roduce heat 10 The unit should only be connected to 120 240VAC 50 60 Hz power supply Use only the power adapter that is sold with the unit 11 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point they exit from the apparatus 12 Only use attachments accessories specified by the manufacturer 13 Unplug this apparatus during lightning storms...

Страница 2: ...e is intended to alert the user to the presence of important operating and maintenance servicing instruction in the literature accompanying the appliance 3 2 Warnings WARNING TO REDUCE THE RISK OF ELECTRICAL SHOCK DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE ENCLOSURE DO NOT OPEN THE CABINET REFER SERVICING TO QUALIFIED PERSONNEL ONLY 3 3 User Respo...

Страница 3: ... 2 4 Table of Contents 3 5 Welcome 4 5 1 Features 4 5 2 Unpacking and Visual Inspection 4 5 3 Installation and Setup 4 5 3 1 Mounting 4 5 3 2 Product Dimensions 6 5 3 3 Input Connections 6 5 3 4 Output Connections 7 5 3 5 RS 232 Connection 8 6 Controls and Indicators 9 7 Technical Specifications 10 8 Troubleshooting 11 9 Warranty Information 11 9 1 Warranty Summary 11 9 2 Eligibility Requirements ...

Страница 4: ...oftware An RS 232 connection is provided for remote control of the muting preselect and output volume functions The enclosure occupies a 1 3 x 1RU rack space Single and dual rack mount kits are available from Stewart Audio This product is proudly manufactured in the United States 5 2 Unpacking and Visual Inspection Every Stewart Audio product is carefully tested and inspected before leaving the fa...

Страница 5: ...e available for mounting the unit where desired CAUTION Use only the screws provided in mounting the brackets to the unit Do not over tighten 5 3 1 3 Rack Mounting Two rack mount kits are available for the DSP4x4 a single rack mount RMK CMP S and a dual rack mount RMK CMP D These can be ordered from your Stewart Audio dealer or directly from Stewart Audio The following diagrams show how these are ...

Страница 6: ...ins of the DSP 4x4 s Phoenix connector respectively Diagrams have been provided for standard XLR and TRS connectors Please refer to the manual of your input source in case it does not follow the standard pin out Caution Incorrect wiring may result in damage to equipment 5 3 3 2 Unbalanced Connections When using an unbalanced input source and connector a jumper must be added between the negative te...

Страница 7: ... Center Software or using RS 232 commands documented in Section 5 3 5 When phantom power is being supplied on a channel the appropriate LED indicator on the rear of the DSP 4x4 will illuminate Caution Microphones or other input devices which do not require phantom power can be permanently damaged by the application of phantom power Stewart Audio will not be held responsible for damage to these dev...

Страница 8: ...03 VOLUME_STATUS Return CHAN2 volume in the format 0x06 VOL 3 0x0A 0x12 0x07 CHAN 2 0x03 FORCE_MUTE_ON Turn mute off for CHAN2 0x12 0x08 CHAN 2 0x03 FORCE_MUTE_OFF Turn mute on for CHAN2 0x12 0x09 CHAN 2 0x03 MUTE_TOGGLE Toggle mute on CHAN2 0x12 0x10 CHAN 2 0x03 MUTE_STATUS Return CHAN2 mute status in the format 0x06 MUTE5 3 0x0A 0x12 0x11 CHAN 2 0x03 CHANGE_PRESET Change to PRESET 0x12 0x12 PRES...

Страница 9: ...d 3 Power Connector 3 5mm connect power adapter supplied with unit only 4 Output Connectors 3 5mm connect to input of next device in the signal chain 5 Input Connectors 3 5mm connect to source s 6 Phantom Power Indicator LEDs illuminate when phantom power is applied to the corresponding channel in DSP Control Center program 7 RS 232 Connector 3 5mm connect to RS 232 controller optional ...

Страница 10: ...ro block LED indicators Power phantom power 1 channel Controls USB programming RS 232 operation Serial control port Bi directional RS 232 Baud rate protocol 9600 baud 8 bits no parity no flow control USB control port Front panel female mini USB B USB standard USB 2 0 low speed Program control Stewart Audio DSP Control Center Power supply input External in line 5VDC Universals input AC DC included ...

Страница 11: ...ies unless excluded in this summary are covered by a 3 year limited warranty on parts and labor from the data of purchase In order to be eligible for warranty repairs the products and accessories must have been purchased through an authorized Stewart Audio dealer and submitted by the original purchaser This warranty is only valid in the country in which the product was purchased 9 2 Eligibility Re...

Страница 12: ...ducts received without an RA number will be returned to sender at their expense If Stewart Audio is unable to contact the sender in 14 days the merchandise will be considered scrap and may be disposed of 10 1 Shipment Instructions If Stewart Audio requests that you ship the defective product back to their service center please refer to the guide below To ensure prompt warranty service be sure to f...

Страница 13: ...ct it is important that it has adequate protection We recommend you use the original packing material when returning the product for repair If you do not have the original box see number 4 4 If you provide your own shipping pack use materials adequate to prevent damage during transit Make certain that the product is NOT free to move within the package as this is the most common cause of damage 5 S...

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