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Safety Instructions/Consignes de sécurité/Sicherheitsvorkehrungen/Instrucciones de seguridad WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. To reduce the hazard of electrical shock, do not remove cover or back. No user serviceable parts inside. Please refer all servicing to qualified personnel.
Table Of Contents Introduction Controls And Functions Front Panel Layout Rear Panel Layout D1500 Quick Start Using The D1500 As An Rta.
Introduction Congratulations on purchasing the Samson D1500 dual channel,1/3 Octave, Digital Real Time Analyzer! 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. If you don’t know what kind of acoustic environment you are dealing with, even the best equipment can provide sound lacking in detail and presence. That’s where the D1500 Real Time Analyzer comes in.
D1500 Features The Samson D1500 Digital Real Time Analyzer uses high quality audio converters along with state of the art 32-bit floating point DSP running powerful digital measurement algorithms to provide a powerful solution for a variety of audio measurement applications. Here are some of the main features: • 31-band, multi-parameter, Digital Real Time Analyzer accurately measures the frequency response of any sound system.
Controls and Functions Front Panel Layout 1 LED METER – 13-segment LED fader for each frequency band, which can be software set for the centers frequency and resolution. 11 INTER (INTEGRATION)– Used in conjunction with DETECT to adjust the RTA meter’s response time from 15, 65, 250, 1000, 5,000 or 20,000 milliseconds. 2 FREQUENCY LED – Red LED indicating the frequency that is displayed in the LCD display. 12 WEIGHT– Used to set an input filter curve with either A, B, C or D weighted filters available.
Controls and Functions 23 GLOBAL – When engaged, the red LED will illuminate indicating that the unit is in GLOBAL mode, and that the operating system parameters are under control and displayed in the LCD window. 19 EQ – When selected, the unit is ready to display the equalization curve from any connected Samson Digital EQ. 20 PHASE– When pressed in, the LED switch lights indicating the operating mode is set to Phase meter. 24 MIDI switch - This switch is used to page through the MIDI parameters.
D1500 Quick Start Using the D1500 as an RTA. between the parameters Input selection and Mic Gain. You can edit the parameters of any of these functions by using the large Data Wheel located by the main LCD display. This section will take you through a quick set-up using the D1500 as a real time frequency analyzer.
D1500 Quick Start • Next, set the MIC GAIN by pressing the GLOBAL You can use the D1500 as an “in-line device" using the switch until you see the menu: MG. 0 dB. rear panel XLR balanced inputs and outputs, but for • While the music is playing, you should see the input many RTA applications, you will want to use a mealevel from the measurement microphone reading surement, (test), microphone to analyze the response, on the VU meter located under the LCD display. If phase or level of a sound system.
Operating the D1500 control offers a wide range of control covering from 0 dB to 120 dB. Press the GAIN switch and use the Data Wheel to adjust the level either up or down . Adjusting the RTA parameters Before you get started using the RTA function, press and hold the RTA switch for about two seconds and take notice of the parameters that can be adjusted while using the RTA.
Operating the D1500 REF - REFERENCE LEVEL Using the ANALYZE Mode Before you get started using the ANALYZE mode, press and hold the ANALYZE switch for about two seconds and take notice of the parameters that can be adjusted while using the ANALYZE mode. You’ll notice that the GAIN, RES, and HOLD are illuminated indicating that these parameters can be edited. Sets the LCD display reference level for use with the ANALYZE mode.
Operating the D1500 Using the D1500’s EQ Display Using the D1500 as a VU Meter The D1500 can be used to display the equalization curve from 1, or up to 16, D2500 Digital Equalizers. The D class units communicate to each other using MIDI or Samson's D-Net communication protocol. Once you connect the MIDI or D net between the D1500 and D2500, you can monitor the D2500's eq curve on the D1500's large LED display. Press the EQ button.
Operating the D1500 Using the D1500 as a Signal Generator • Next, select the signal you want to generate by pressing the SOURCE switch and selecting either WHITE, PINK or SINE WAVE. Before you get started using the Generator, press and hold the GEN switch for about two seconds and take notice of the parameters that can be adjusted while using the Generator. You’ll notice that the SOURCE, GAIN, REF and FREQ are illuminated indicating that these parameters can be edited.
Operating the D1500 Storing Programs in the D1500 Loading Programs in the D1500 The D1500 has 99 memory locations for storing user presets. You can save the equalization curve, as well as all the parameters for the routing and the onboard effects that may be active. Saving the preset is a simple procedure which is accomplished with the following easy steps. You can load presets with stored set-ups, as well as all the parameters for the onboard display processors that may have been used.
Operating the D1500 MIDI and D Net Setting the D1500 to Transmit and Receive MIDI For expanded system control, the D1500 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 personal computers. You can use standard MIDI cables for IN, OUT and THRU to configure a system using traditional MIDI protocol.
Operating the D1500 Selecting MIDI Omni mode Selecting MIDI Program Change You can program the D1500 to receive MIDI messages in Omni mode by following the next steps. • Press the MIDI switch until that LCD reads OMNI. You can program the D1500 to receive or transmit MIDI Program messages. Program the D1500 for MIDI Program Change operation by following these simple steps. • Use the Data Wheel to select Omni ON. • Press STORE • Press the MIDI switch until that LCD reads: PgmCh.
Operating the D1500 with the D2500 Digital EQ • Now, Let's set up the D2500. Using the D1500 with the D2500 In order for the D1500 and D2500 to communicate with each other it is necessary to configure the MIDI parameters so that the units are communicating properly. Follow the steps below to configure the MIDI parameters for communication between one D1500 RTA and one D2500 Digital EQ. Let's start with the D1500: • Press the D2500's Global switch a few times until the display reads: F.R.
Operating the D1500 with the D2500 Digital EQ Using the D1500’s EQ Display The D1500 can be used to display the equalization curve from 1, or up to 16, D2500 Digital Equalizers using the standard MIDI or optional D-Net interface. • 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 +/- 12 dB setting.
Operating the D1500 • Now run your mic, MP3, or CD player signal, press RTA on the D1500 and check the LCD Meters on the D1500. Using the signal Generator The D 1500’s internal Signal Generator can be used to produce Pink Noise, White Noise or a tunable Sine Wave. • While the D1500 is set to RTA, you may need to adjust the GAIN to set the reference point of the display.
Operating the D1500 with the D2500 Equalizer When you use the D1500 RTA and the D2500 digital EQ together they combine to create a powerful automatic equalization system. You simply connect the two units using D-Net or MIDI, and then the D1500’s AUTO EQ feature to let the onboard DSP’s measure your system response and adjust the equalizer for a flat response, or for any EQ response curve that you may have saved in memory.
Operating the D1500 with the D2500 Equalizer Using AUTO EQ with the D2500 Digital Equalizer When you use the D1500 RTA and the D2500 digital EQ together they combine to create a powerful automatic equalization system.
Operating the D1500 with an Analog 31-band Equalizer • If the Pink Noise sounds very loud already, adjust the reference point of the display by pressing the RTA switch, then GAIN and then turn the Data Wheel clockwise until you see LED Meters operating around 0. Now that you have set good levels for the mixer, and the D1500 Pink Noise generator, Mic input and RTA reference point, you can begin to measure the response of your system and adjust your graphic equalizer for a flat response.
Using the D1500 to Tune an Electronic Crossover Using the D1500 to Tune an Electronic Crossover A REAL TIME ANALYZER (RTA) is an especially useful tool for setting up your crossover, as it will enable you to set parameters like DELAY and LEVEL more accurately. Some Audio Engineers can use their ears to tune a loudspeaker system. Some will even use the crossover to create the over-all system curve using the crossover like an equalizer.
Using the D1500 to Tune an Electronic Crossover Setting the Crossover Level Controls Using the D1500 It is critical to set the GAIN output controls so that all the frequency bands combine to create an overall flat system response. Using the D1500 to set the GAIN control will make it much easier for you to accomplish a flat system response. Follow the steps below, separately for each side of your system, to set the GAIN controls using the D1500 RTA.
Grounding Techniques Hum and buzz are the biggest enemies you face when interconnecting a large number of different pieces of equipment to one another.
D1500 Wiring Guide D1500 Wiring Guide There are several ways to interface the D1500 , depending on your exact monitoring set-up. In order to achieve the lowest possible noise and to take advantage of CMR (Common Mode Rejection) , we recommend using balanced cables when ever and where ever possible. Follow the cable diagrams below for connecting your RTA.
Specifications Inputs Type Connector Impedance Max. input level AIO1: AIO2: Outputs Type Connector Impedance Max.
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.
