Manual Samson D-2500 (page 4 of 32) (English)

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Congratulations! You just purchased one of the most innovative and useful audio tools available to sound engineers

today, the D2500 Digital Equalizer from Samson Audio! The D2500 is a dual channel, 1/3 Octave, 31 Band Digital Graphic

Equalizer featuring cutting edge DSP and analog-to-digital conversion technology, together with a simple to use, tra-

ditional analog user interface. The D2500’s robust, 2 rack-space steel and aluminum extruded chassis design is not only

road worthy, but it also provides a large front panel layout which is extremely easy to use and already familiar to audio

engineers. The beauty of the D2500 Graphic Equalizer is that it has 31 bands of real hands-on faders! You may forget that

that you are using a digital EQ; just press the MANUAL button and “ look mom, I’m equalizing the system!” And, with the

high-end 24 Bit AD and DA converters and 96K sampling rate, you’ll enjoy pristine audio quality. Thanks to the powerful

DSP engine and clever software, the D2500 is capable of producing EQ curves with more accurate and precise filters, far

exceeding the capabilities of even the best analog equalizers. What you won’t get is the accumulating additive hiss noise

that you get from an analog equalizer when you push up the high frequency bands.

In addition to being a simple to use digital equalizer, the D2500 is packed with all the goodies including HIGH & LOW

PASS FILTER, NOISE GATE, LIMITER, ENHANCER, DELAY and FEED BACK MANAGEMENT. All these digital effects are pro-

grammable and their associated parameters can be stored, and recalled, as part of the 99 available user pre-sets. The

HIGH and LOW PASS FILTERS allow you to quickly apply an EQ contour for rolling off the high and low end frequencies,

for example, when equalizing vocal monitors. The D2500’s NOISE GATE allows you to set a threshold level in order to

mute any system hums and buzzes during silent sections keeping your system super clean. With the D2500’s LIMTER you

can control the level that you are sending to your power amplifiers to help you insure good protection for your loud-

speakers. The onboard ENHANCER will actually add high frequency to the system when there is program material at

those frequencies, adding extra sparkle to the mix. The ENHANCER will also automatically turn down the high frequen-

cies when there is no high frequency signal content, which, by eliminating system noise and hiss, making the D2500 a

very effective noise reduction system. In addition, the D2500 also offers on onboard DELAY for time aligning speakers.

Another powerful feature of the D2500 is feedback suppression. The D2500’s feedback management system can be set

to AUTO which will automatically find the frequency that’s feeding back and lower the associated filter. Or, you can use

the feedback management system in MANUAL mode where the D2500 will automatically find, and then display, the

frequency that’s feeding back, showing which fader you should pull down manually. All settings and parameters for the

equalizer and digital effects can be stored in 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 together with the D 1500 Real Time Analyzer, you can auto-correct the room to a flat response, and then apply

your favorite system curve on top. In addition, the powerful LOAD MASK allows you to recall certain effects or EQ curves

from any preset independently, so you can add pre-set effects settings with real time changes.

The D2500 features standard MIDI implementation and Samson’s D-Net, enabling device-to-device linking for creating

larger audio systems, for interfacing to a personal computer. When linking the units you see the full power of the D-class

system. With a basic MIDI connection, the fader positions of the D-2500 digital EQ can be displayed the D1500 Real Time

Analyzer, giving you the power of digital processing with a unique analog feel. For systems using many D class units,

the D2500 can be fitted with the DN1 D-Net network card. Samson’s D Net is a high-speed communication protocol for

connected multiple D class units, like the D2500 digital equalizer, D1500 RTA or D3500 feedback management system.

In addition to being 10 times faster than MIDI, the error rate is so close to zero, it’s difficult to measure. All settings and

parameters can be stored in any of the 99 preset locations providing instant recall of your favorite setups. Like all D class

models, the D2500 features an advanced 32-bit point floating processor DSP interface to high quality converters with 24-

bit audio resolution and sample rates up to 96kHz for pristine audio quality. You can even upgrade your D class units to

premium Analog-to-Digital and Digital-to-Analog I/O (Input/Output) converter boards, keeping your D class system up

to date with the best technology and sound, far into the future.

The D2500 is perfectly at home in the studio or on the road. The fact is, you would use the D2500 equalizer for its precise

filtering and superb audio quality alone, but you get the power of all the features, and then some, expected from a high

quality digital equalizer. Whether you are a recording or a live sound engineer you’ll get a better sound using the D2500

Digital Equalizer!

Although this product is designed for easy operation, we suggest you take some time out first to go through these pages

so you can fully understand how we’ve implemented a number of unique features. In this manual, you’ll find a more

detailed description of the features of the D2500, as well as a guided tour through the front and rear panels, step-by-step

instructions for using the unit and suggested applications set-ups.

Serial number:_____________________________________

Date of purchase:_________________________________

Should your unit ever require servicing, a Return Authorization number (RA) must be obtained before shipping your unit

to Samson. Without this number, the unit will not be accepted. Please call Samson at 1-800-3SAMSON (1-800-372-6766)

for a Return Authorization number prior to shipping your unit. Please retain the original packing materials and if possible,

return the unit in the original carton and packing materials.

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Samson D-2500 Manual

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