DA-410 DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER OWNERS MANUAL EQUIPOS EUROPEOS ELECTRÓNICOS, S.A.L Avda. de la Industria, 50. 28760 TRES CANTOS-MADRID (SPAIN). 34-1-804 32 65 34-1-804 43 58 altair@altairaudio.com www.altairaudio.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 2 1. INTRODUCTION................................................................................................................................................................................. 3 2. SWITCHES, CONTROLS, ADJUSTMENTS AND CONNECTORS................................................................................................... 4 FRONT PANEL ...............................................................................................
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 3 1. INTRODUCTION Congratulations on your purchase of the ALTAIR distribution amplifier/zone mixer/mic splitter DA-410. Our dilated experience in the design and manufacture of effect processing equipment, had led to us to carry out this distribution amplifier/zone mixer/mic splitter of great performances.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 2. SWITCHES, CONTROLS, ADJUSTMENTS AND CONNECTORS These are the switches, controls, adjustments and connectors that you could find in your ALTAIR distribution amplifier/zone mixer/mic splitter. The description and explanation of each one of them, you will find in the corresponding section. FRONT PANEL MINIATURE SPEAKERS. MONITOR SIGNAL VU-METER. SIGNAL AND OVERLOAD INDICATOR. MONITOR LEVEL CONTROL. INPUT LEVEL CONTROL. MONITOR SIGNAL SELECTOR.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. REAR PANEL MAINS CONNECTOR AND FUSE HOLDER. VOLTAGE SELECTOR. EARTH LINK SWITCH. OUTPUT SIGNAL CONNECTOR XLR-3-32. INPUT SIGNAL CONNECTOR XLR-3-31. MIC/LINE INPUT SIGNAL SELECTOR.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 6 3. WORKING PRECAUTIONS The manufacturer is not responsible of any damage occurred in the distribution amplifier/zone mixer/mic splitter unit outside the limits of the warranty or those produced by not keeping in mind the working precautions. Mains voltage must be correct and the same as that setting on the rear of the unit voltage switch. Damage caused by connection to improper AC voltage is not covered by any warranty.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. Distribution amplifier/zone mixer/mic splitter set up to 230 V. Distribution amplifier/zone mixer/mic splitter set up to 115 V. Make sure that the fuse is the right one for the selected voltage: FUSE (230V. 50-60 Hz) FUSE (115V. 50-60 Hz) T0,5A. T1A. CHANGING THE FUSE The distribution amplifier/zone mixer/mic splitter unit is set to operate at 230V, 50-60Hz or at 115V, 50-60Hz. Make sure that the unit is disconnected from the mains.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 8 CONNECTING TO THE MAINS The connection of the distribution amplifier/zone mixer/mic splitter power supply to the mains takes place by a standard cord included in the box. Make sure that the unit power switch is at 0 position (turned off). Insert the female I.E.C. connector of the tripolar cable into the unit power supply male connector, placed at the rear panel. Insert the male connector of the tripolar cable into the mains plug.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. UNBALANCED INPUT: This type of connection will be used when the sound source doesn't provide balanced output. When possible, employ the connection type 1.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 10 BALANCED INPUT: OUTPUT CONNECTION The distribution amplifier/zone mixer/mic splitter output signal is carried out through ten XLR3-32 male connectors, two per stereo channel. The outputs are balanced, with a nominal impedance of 100 Ω. The next list shows the input pins correspondence as A.E.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. UNBALANCED OUTPUT: This type of connection will be used when the sound destination unit doesn't provide a balanced input. When possible, employ the connection type 1.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 12 BALANCED OUTPUT: GROUND LINK In some installations, it might be necessary to isolate the distribution amplifier/zone mixer/mic splitter electric ground, from the system mains earth, in order to avoid ground loops that could generate unwanted noises. For this reason, the unit provides an EARTH-LINK switch placed at the rear panel in order to lift the mains earth from the unit.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 13 5. OPERATION The utility of the distribution amplifier/zone mixer/mic splitter is to process two input stereo signals entering the unit to obtain five output stereo signals, both with independent level control. Used as mixer (Zone Mixer), the unit could control five zones in stereo mode or ten in mono mode (or any other combination) from the mix of its two stereo input signals.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 14 This multipoint level circuit indicates the highest level reached inside the unit output circuits and warns the operator about possible problems. When the level indicator lights green, the internal level has reached -20 dBv. (signal present led). Should any internal level is near overload (+15 dBv) the level indicator lights on red to warn the security limit has been surpassed. On that case the unit has a 6 dB extra dynamic reserve or headroom.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 15 MONITOR SIGNAL VU-METER The selected monitor signals drives a Stereo calibrated VU-METER ranging from -12 dB, -6 dB, 0 dB, +3 dB and +6 dB. (0dB ref. 0 dBu). This 6 led VU-METER is connected pre-monitor level and is intended for precise signal calibration. Refer to previous paragraph about MONITOR SIGNAL SELECTOR.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. The MIC mode is not intended as a microphone preamplifier. Instead, it accommodates or adapts microphone impedances to the unit allowing perfect match between microphones and long run cabling to external mixers.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 17 mixer/mic splitter is cheaper than utilise a graphic equaliser, and also avoids unwanted manipulations. The optional equaliser card provides a full parametric equalisation point. It means, you can arbitrary choose and set-up the equalisation points parameters: gain, bandwidth and centre frequency. Two equalisation points per output (XLR-3-32) are available.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 19 INPUT TRANSFORMER (IT-DA) In order to improve the input common mode rejection ratio and for a galvanic isolation with the previous part of the audio system, it is available an input transformer. Each XLR-3-31 input has an insert point for the input transformer; therefore, you could mount four input transformers in the unit. In the following table are shown the correspondence between the inputs and their corresponding input transformers.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 21 As seen in the main board component overlay, the jumper goes placed beside an indication. It is important notice to install the jumper in the appropriate location, because placing it in the wrong location could cause a short circuit in the power supply or additional malfunctions in the unit. EQUALIZER CARD CONFIGURATION The next picture shows the component overlay of an equaliser card.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. GAIN 10 dB 11 dB 12 dB 13 dB 14 dB 15 dB 5% RESISTORS 4,7 KΩ 3,9 KΩ 3,3 KΩ 3 KΩ 2,4 KΩ 2,2 KΩ 1% RESISTORS 4,64 KΩ 3,92 KΩ 3,32 KΩ 2,87 KΩ 2,49 KΩ 2,21 KΩ For more accurate results, It is advisable the use of 1% film resistors. You should be careful with the high gains adjustment (higher than 6 dB), since the distribution amplifier/zone mixer/mic splitter dynamic decreases considerably.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. FREQUENCY 10 kHz 12,5 kHz 16 kHz 20 kHz 5% RESISTORS 4,7 kΩ 3,9 kΩ 3 kΩ 2,4 kΩ 1% RESISTORS 4,87 kΩ 3,83 kΩ 3,01 kΩ 2,43 kΩ If you don't find the resistances for low frequencies, since they are very big, you could change the capacitors C2 and C3 to 33 NF, and divide the resistor value of the table by 10. This could only be made between frequencies in the range of 25 Hz and 2 kHz, since the RF and RF' resistors could never be less than 2 kΩ.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. GAIN R1 5% 1% +6 dBv +4 dBv +2 dBv -2 dBv -4 dBv -6 dBv 5,1 KΩ 4,99 KΩ 6,2 KΩ 6,34 KΩ 7,5 KΩ 7,87 KΩ 12 KΩ 12,4 KΩ 16 KΩ 15,8 KΩ 20 KΩ 20 KΩ NON STANDARD CONFIGURATION EXAMPLES With the parametric equalisation point, you can also simulate shelving and notch filters. In order to carry out a shelving filter, you should select the frequency 35 Hz for low frequencies or 16 kHz for high frequencies and a very small Q - 0.4 for example.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 26 WARNING: Before carrying out any operation inside the distribution amplifier/zone mixer/mic splitter, disconnect it from the mains. Upon being connected to the mains, the distribution amplifier/zone mixer/mic splitter contains elements with high voltages, and if for negligence you touch one of those parts could cause a short circuit through your body with the rising danger for your health.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 28 In the input stage, each one of the inputs has a jumper that lifts the input XLR ground. Next, the signal crosses the input transformer (if the option is placed) and the switch LINE/MIC that allows to choose the input gain (in line mode won't have gain, and in mic mode will have 12 dBu of gain). Following the signal is electronically unbalanced and crosses the input level control.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 29 Next paragraphs details some of the most frequent fixes as a guide to the qualified technical service helping to repair the unit: If a fuse break due to a mains transient or when the unit has been connected accidentally to 380 line voltages, replace it with the same ratings as described before. If it breaks again, check the overvoltage protections placed on the voltage selector. If broken, substitute them by an equivalent part (130 volts VARISTOR).
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 30 ZONE MIXER APPLICATION EXAMPLE In the zone mixer application example, we have supposed a standard hotel set-up with different sound zones, with two sound programs and several levels. The input signals to the DA-410 come from a mixer console (in order to control the microphones for example) and a cassette desk (or a CD) both working in stereo mode.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 31 MIC SPLITTER APPLICATION EXAMPLE In the mic splitter example application, we have supposed a live show, in which we should give signal to a recording truck. For explanation simplicity, we supposed a reduced set-up about four microphones and a DA-410 only. Normal set-ups will need 32 or more microphone inputs corresponding to 8 or more DA-410 units. The F.O.H.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 11. TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS NUMBER OF INPUTS: INPUT IMPEDANCE: INPUT LEVEL: INPUT GAIN/ATTENUATION: NOMINAL GAIN: NUMBER OF OUTPUTS: OUTPUT IMPEDANCE: OUTPUT LEVEL: OUTPUT GAIN/ATTENUATION: C.M.R.R.: NOISE: FREQUENCY RESPONSE: CHANNEL SEPARATION: INDICATORS: MONITORING: DISTORTION: MAINS SUPPLY: POWER REQUIREMENT: DIMENSIONS: OPTIONS: • 2 stereo (XLR-3-31). 2 kΩ/5 kΩ (MIC/LINE). Electronically balanced. • 0 dBu nominal.
DISTRIBUTION AMPLIFIER/ZONE MIXER/MIC SPLITTER DA-410. 33 12. WARRANTY This unit is warranted by Equipos Europeos Electrónicos to the original user, against flaws in the manufacturing and in the materials, for a period of one year, starting from the date of sale. Flaws due to wrong use of the unit, internal modifications or accidents, are not covered by this warranty. There is no other warranty expressed or implicit. Any faulty unit must be sent, to the dealer or the manufacturer.
European Union Waste Electronics Information Unión Europea Información sobre residuos electrónicos Waste from Electrical and Electronic Equipment (WEEE) directive The WEEE logo signifies specific recycling programs and procedures for electronic products in countries of the European Union. We encourage the recycling of our products. If you have further questions about recycling, contact your local sales office.
