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17

Operating the D2500  

MIDI and D Net

For expanded system control, the D2500 uses standard 
MIDI, as well as Samson’s D Net communication protocols, 
to transmit and receive digital control information to and 
from additional D class units, other MIDI devices, or per-
sonal computers.  You can use standard MIDI cables for 
IN, OUT and THRU to configure a system using traditional 
MIDI protocol. For critical applications where higher speed 
comunication is needed, you can install the optional 
DN1, D-Net interface cards and use standard XLR cables 
to configure a high-speed, bi-directional data hook-up 
using Samson D-Net protocol. The MIDI and D-Net control 
parameters are configured by accessing the various menus
with the MIDI switch, located on the D2500’s front panel. 

You can use MIDI for controlling one D2500 with a Samson 
D1500 RTA, but in larger systems, the D2500 and other D 
class units should be configured with an optional DN1 D- 
Net interface card for high-speed and bi-directional com-
munications.  For ease of use, D-Net follows a similar user 
interface as MIDI, but in reality they are very different. The 
beauty of the D net interface is, not only is it 30 times fast-
er than MIDI, but both Send and Receive are covered using 
a single standard XLR cable making it possible to daisy 
chain several D class units together without the needs for 
hubs or external mergers.. Also, the super fast D-Net bus 
is fast enough to easily communicate with an external PC 
for Real Time Analysis and display on an external moni-
tor. Plus as an added bonus, the error rate on the D-Net is 
virtually zero, guaranteeing reliable performance during 
critical applications. 

When you press the MIDI switch several times you will 
be paging though the various MIDI setup menu items 
including MIDI enable, Channel, Omni, System Exclusive 
and Program.  The following section details each of these 
modes and their associated parameters.

Setting the D2500 to Transmit and Receive MIDI

To enable the D2500 to send and receive MIDI data follow 
these steps:

•  Press the MIDI switch until that LCD reads Midi: Off.

•  Use the Data Wheel to select Midi ON.

NOTE: 

Once you make a edit to the MIDI set-up, the red MIDI 

LED will flash indicating that a change has been made to the 
original set-up.  You will also see that the red STORE LED is 
illuminated

•   To keep the new changes, press the STORE button and 

you will exit the MIDI mode and both the STORE and 
MIDI the LED’s will turn off.

Setting the D2500 to Transmit and Receive Data Using 
D-Net

In larger systems, the D2500 and other D class units can 
be configured with an optional DN1 D Net interface card 
for high-speed communications.  D Net follows a simi-
lar protocol as MIDI, only at a much higher data rate. As 
mentioned in the previous section, the beauty of the D 
net interface is, not only is it 30 times faster than MIDI, but 
both send and receive are covered using a single standard 
XLR cable.

To enable the D2500 to send and receive D-Net data fol-
low these steps:

•  Press the MIDI switch until that LCD reads: Midi ON.

•  Use the Data Wheel to select D. Net.
•  Press Store.

Now that you have enabled the D2500 for D-Net, as 
described in the previous section, you can select addition-
al MIDI parameters that may be necessary for your exact 
application or system set-up.  The D2500’s MIDI has three 
basic modes of operation Channel, Omni and System 
Exclusive. The D2500 can operate in any of these three 
MIDI modes.

One of the most used MIDI modes is Channel MIDI, which 
allows you to assign up to sixteen different devices to indi-
vidual MIDI channels 1 through 16. 

Selecting a MIDI Channel

You can program the D2500 to receive MIDI messages  on 
a specific MIDI channel by following the next steps.

•  Press the MIDI switch until the LCD reads: M. Channel 1.

•  Use the Data Wheel to select: M. Channel 1 - 16.

•   To keep the new changes, press the STORE button and 

you will exit the MIDI mode and both the STORE and 
MIDI the LED’s will turn off.

Summary of Contents for D-2500

Page 1: ...DIGITAL DUAL 31 BAND EQUALIZATION SYSTEM...

Page 2: ...r objects have fallen into the unit the unit has been exposed to rain or moisture does not operate normally or has been dropped PRECAUCION Para reducir el riesgo de incendios o descargas no permita qu...

Page 3: ...D2500 Faders 11 Using the Process Switches 12 Using the EQ section 12 Using the FEEDBACK Management Function 12 Using the Internal Noise GATE 13 Using the Internal DELAY 13 Setting up and Using the Hi...

Page 4: ...n 99 pre set locations Using the large easy to read LCD display and conve nient data wheel it s possible to save your favorite equalization curves and recall them in the future Or when using the D2500...

Page 5: ...and suppression Manual or Auto mode with Automated Filter Restoration The D2500 s fader can be set for either 3 6 or 12 dB of gain and attenuation for each of the frequency bands An onboard programmab...

Page 6: ...alizer to the physical controls 10 LINK switch Used to control the left and right CH1 and CH2 equalizer simultaneously with the one set of physi cal controls Controls and Functions Front Panel Layout...

Page 7: ...Electronically balanced XLR jack output 19 LIMITER switch This switch is used to page through the LIMITER parameters When selected the amber LED will illuminate and the LIMITER parameters will be disp...

Page 8: ...NG UP THE D2500 to work in MANUAL mode The D2500 is simple to use In fact you can use it just like a standard analog graphic equalizer by simply set ting the unit to MANUAL mode Setting up your D2500...

Page 9: ...lizer D2500 Quick Start 7 12 Apply an input signal to the D2500 if sending signal from a mixer output bus drive the mixer s output meters at approximately 0 VU While the input signal is present slowly...

Page 10: ...The D2500 function switch sections are arranged on the front panel as follows First is the BYPASS switch that enables you to turn the equalizer and all effects on or off Next is the A B switch that l...

Page 11: ...dwidth for either 1 4 1 3 1 2 of an octave or to AUTO which will allow each of the 31 filters to be set to an individual bandwidth calculated by the onboard DSP To access the Filter band width setting...

Page 12: ...and control either one or both sides The state of these switches will determine which of the left and right signals are affected by the hardware control surface Using the LINK switch If you want to s...

Page 13: ...loading in preset 00 If you are not very familiar with working with the presets just stay on preset 00 Preset 00 can not be overwritten so don t worry about erasing anything Press the MANUAL button to...

Page 14: ...zer filters as well as the Master Fader filters are displayed in the LCD window You can use the Data Wheel to scroll through the frequencies and display the filter levels in the main LCD window It is...

Page 15: ...al rises above the Threshold level The Noise Gate Switch Has Two Clicks Click Menu Function Value 1 Gate Rel Release Time 50 100 2 Gate Th Threshold Level 0 100 dB To operate the D2500 digital noise G...

Page 16: ...your system When equal izing a monitor system you may use both the HP and LP filters to roll off the high and lows for a vocal eq contour Any good high and low pass filter will allow you to choose the...

Page 17: ...set from 50 to 100 which is the equivalent to 2 to 15 seconds Using the A B Feature The A B switch lets you compare the actual modified program to the last program recalled or stored in memory After...

Page 18: ...tion go on to the next step If you want to choose a new memory location use the Data Wheel to scroll through the 99 preset num bers until you reach the number you want to recall into memory Once you s...

Page 19: ...hese modes and their associated parameters Setting the D2500 to Transmit and Receive MIDI To enable the D2500 to send and receive MIDI data follow these steps Press the MIDI switch until that LCD read...

Page 20: ...l to select SysEx T R Use the Data Wheel to select SysEx OFF and the D2500 will not transmit or receive any system exclusive mes sages To keep the new changes press the STORE button and you will exit...

Page 21: ...e or for any EQ response curve that you may have saved in memory THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES CLASS B OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS 1 THIS DEVICE MUST NOT...

Page 22: ...ORE NOTE You may need to come back to this to make the final mic gain adjustment once you start generating the PINK NOISE at the desired operating level AUTO EQ YOUR SYSTEM Once you have the Mic Input...

Page 23: ...reads F R Now turn the Data Wheel until the dispay reads 12 dB Press the D2500 s Global switch a few times until the display reads F Bw Then turn the Data Wheel until the display reads 1 3 Oct Press...

Page 24: ...ting the D2500 with the D1500 RTA Press RES and use the Data Wheel to select 2 0 dB which will correspond to the D2500 provided that the Frequency Range Global Menu of the D2500 is set to the default...

Page 25: ...wise until the LED indicators are oper ating in a range approximately halfway up the display Operating the D2500 with the D1500 RTA Operating the D2500 with the D1500 RTA Using the signal Generator Th...

Page 26: ...outputs are connected to the inputs of each active self powered loudspeaker Using the D2500 with Passive Speakers In this example the mixer s stereo output is connected to the D2500 s inputs Then the...

Page 27: ...n D2500 is used for both the main PA speakers running a mono mix and for the monitor mix also in mono For the main PA the mixer s MONO output is connected to the D2500 s Channel 1 input Then the D2500...

Page 28: ...peakers Then the outputs are connected to the inputs of the power amplifier connected to passive loudspeakers For the monitor mix the mixer s AUX1 output is connected to the second D2500 s channel 1 i...

Page 29: ...g set up Follow the cable diagrams below for connecting your monitor system 27 XLR Insert Cable Balanced 1 4 to FEMALE XLR Cable Unbalanced XLR to 1 4 Cable Balanced MALE XLR to 1 4 Cable Unbalanced M...

Page 30: ...p 4 dBu 1 kHz unity gain Digital Processing Converter 24 bit Delta Sigma 64 128 oversampling Sample rate AIO1 AIO2 32 44 1 48 64 88 2 96 kHz DIO1 96 kHzType digital 31 band equalizer DIO1 96 kHzType d...

Page 31: ......

Page 32: ...Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 www samsontech com...

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