Inter-m CSP-4.8 Operation Manual

MADE IN KOREA

March 2011

Inter-M, Ltd. (Korea) began operations in 1983.

Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.

Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).

The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.

With more than 850 employees around the globe,
Inter-M is well-poised for further growth and expansion.

Inter-M Americas, Inc.

13875 Artesia Blvd. Cerritos, CA 90703 USA
TEL : [phone], FAX : [phone]
Home Page : http://www.inter-m.net, E-mail : [e-mail]

Inter-M Corporation

Seoul OFFICE:653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL : [phone]~8, FAX : [phone]
Home Page : http://www.inter-m.com, E-mail : [e-mail]

Operation Manual

Signal Processor

CSP-4.8

SIGNAL PROCESSOR

Welcome

Welcome

A personal welcome to you from the management and employees of Inter-M

All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value,
and we are delighted you have purchased one of our products.

We sincerely trust this product will provide years of satisfactory service, but if anything is not to your complete
satisfaction, we will endeavor to make things right.

Welcome to Inter-M, and thank you for becoming part of our worldwide extended family!

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

WARNING

To prevent fire or shock hazard, do not
expose the unit to rain or moisture.

*WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used near water(e.g.

near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so than objects do
not fall and liquids are not spilled into the enclosure through openings.

*CLASS 2 WIRING (Adjacent to speaker terminal): The speaker output of this apparatus can exceed 10 Watts and could be a shock injury.

Connection to speakers should be performed by a skilled person.
*Do not install this equipment in a confined space such as a book case or similar unit.
*This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*This apparatus shall be connected to a mains socket outlet with a protective earthing connection.
*

It has heed to be easy to disconnect the device. To disconnect the device from power, separate AC input cable from inlet or unplug the AC Cord.

*

The socket-outlet shall be installed near the equipment and shall be easily accessible.

CAUTION

*These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing

other than that contained in the operating instructions unless you are qualified to do so.

NOTE
*This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will
be required to correct the interference at his own expense.

This symbol is intended to alert the user to the
presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.

This symbol is intended to alert the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.

Caution: To prevent electric shock do not use this (polarized) plug with

an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.

Attentions: Pour préve nir les chocs électriques ne pas utiliser cette

fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre insérées à fond sans en laisser aucune partie à
découvert.

SIGNAL PROCESSOR

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CSP-4.8

Contents

Contents

Unpacking .......................................................................................................................................2

Installation

Environment....................................................................................................................................2

Important Safety Instructions.............................................................................................................2

Features............................................................................................................................................3

Front Panel ......................................................................................................................................4

PROTEA NE Software ..................................................................................................................13

Troubleshooting ............................................................................................................................14

Block Diagram ..............................................................................................................................15

Specifications ................................................................................................................................16

Dimensions ...................................................................................................................................17

Service............................................................................................................................................18

Variations and Options ...............................................................................................................18

Warranty .......................................................................................................................................18

SIGNAL PROCESSOR

2

CSP-4.8

Installation

Unpacking

Unpacking

Although your DPA-430H is neither complicated nor difficult to operate, we recommend you take a few minutes
to read this brief manual and familiarize yourself with the important information regarding product features,
setup and operation.

As with most electronic devices, we strongly recommend you to retain the original packaging. In the unlikely
event the product must be returned for servicing, the original packaging (or reasonable equivalent) is required.

Installation

Environment

Never place this product in an environment which could alter its performance or reduce its service life. Such
environments usually include high levels of heat, dust, moisture, and vibration.

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and
the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.

S3125A

S3125A

SIGNAL PROCESSOR

3

CSP-4.8

Features

Features

Features

- 4 in, 8 out Digital Signal Processor

- DSP function : Gain, Parametric EQ, Filter, Time delay, Crossover, Compressor, Limiter, Matrix routing

- 24 bit, 48kHz delta-sigma A/D converters with 128x oversampling

- A backlit 2 x 20 character LCD displays channel and function settings

- CSP-4.8 Software for Windows, which allows complete PC control of the unit through a USB jack

SIGNAL PROCESSOR

4

CSP-4.8

Front Panel

Front Panel

1. FUNCTION KEYS AND DATA WHEEL

To the right of the LCD display are two
unlabeled function keys and a rotary data
wheel. All audio and system parameters are
edited using these three controls. Each of the
two lines of text on the LCD display correspond
to a dedicated function key, so that various tasks
on both lines may be selected using their respective keys. The selected task is highlighted by a flashing
underscore beneath the word or number, and the parameter is then adjusted up or down with the data
wheel. The Esc key will exit any activity and return to the top level showing the preset number and name.

2. PRESETS

The CSP-4.8 is organized into 30 programmable presets, each completely defining the configuration of all
inputs and outputs along with their respective audio components. There are ten repeating preset
configurations pre-loaded into the unit which are simply starting points for common applications, and all
can be modified, renamed, and saved to suit the end user. Please Note: In addition to the 30 preset
numbers, a constantly refreshed Working Preset is used to take a "snapshot" of all current settings should the
unit be turned off before changes can be saved. When the unit is first powered up, the last working preset is
loaded, displaying the number and name last used before the unit was turned off. Any modifications made
to that preset before saving it will remain in the working preset until either the modified preset is saved, or a
fresh preset is recalled. When modifications to an existing preset are made without saving, the display adds
the text (modified) after the preset number.

3. INPUT SELECT

There are four XLR audio inputs on the CSP-4.8 and
each input is processed independently and may be
routed to one or several outputs. Select an input to
edit its Gain, EQ, and Delay settings, or to mute it.
Signal routing occurs in the output section.

SIGNAL PROCESSOR

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CSP-4.8

4. OUTPUT SELECT

There are eight outputs on the CSP-4.8 and each
output can obtain its source from any input or
combination of inputs. Select an output channel
to edit its Source, Gain, Polarity, EQ, Delay,
Crossover, or Limiter functions.

5. LED INDICATORS

Each input and output has a five segment LED array for audio level display, ranging from -20 through
clipping. The -20 LED is two-color, also serving as the Mute indicator by turning red. The meter scale is
factory set so that 0 on the meter is 0dBu (0.775Vrms), however it can be easily changed to VU scale (0 =
+4dBu, or 1.228Vrms) within the Util menu.

6. AUDIO FUNCTIONS

1) Gain

Input and Output Gain are separately adjustable
from -40dB to +12dB in 0.1dB increments. The
output gain menu also provides for selection of
input source(s) for a given output channel, as well
as polarity of the outgoing signal. Any input or
combination of inputs can be routed to any or all
outputs. Keep in mind that two signals which
share significant content, such as a stereo source,
will be up to 6dB louder when combined.

2) EQ

- The CSP-4.8 EQ section offers full parametric EQ as
well as 1st and 2nd order shelving filters on inputs
and outputs. Each input channel has six selectable
EQ filters, while each output channel has four
selectable EQ filters. In all cases, each filter is
selectable between parametric (PEQ), 1st order Low
Shelf (LS1), 2nd order Low Shelf (LS2), 1st order
High Shelf (HS1), and 2nd order High Shelf (HS2).

- Shelving EQ filters : 1st order filters use a gentle
6dB per octave slope, while 2nd order filters use
a 12dB per octave slope for more a pronounced
boost or cut. All shelving filters have a boost/cut
range of +/-15dB. Low shelving filters have a
frequency range from 19.7Hz through 2kHz, and
the high shelving filters range from 3.886kHz
through 21.9kHz. Shelving filters are most useful
as broad tone controls to boost or cut the high
end or low end of an audio signal's frequency
content. Because they affect a wider spectrum of
audio, they are not as suitable for feedback control as parametric filters.

GAIN A

0.0d

B

GAIN 1

0.0dB

Source:A
Pol:Normal

+20d

+10dB

B

Low Shelf High Shelf

0dB

-10dB

-20dB

-30d

B

EQ 1

0.0dB

200Hz 2KHz 20KHz20Hz

CSP-4.8 Shelving Filters

Filtr:1-PEQ

1000Hz 1.00o

1st Order Filte
2nd Order Filter

r