Summary of Contents for Altair EQ-215
- Page 1 EQ-215/230 GRAPHIC EQUALISERS OWNERS MANUAL issue 1.0 May 98. ALTAiR EQUIPOS EUROPEOS ELECTRÓNICOS, S.A.L. AVDA. DE LA INDUSTRIA, 50. 28760 TRES CANTOS (MADRID) 34-91-8043265 34-91-8044358 altair@altairaudio.com. www.altairaudio.com...
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Page 2: Table Of Contents
ALTAiR EQ-215/230 GRAPHIC ECUALISERS CONTENTS 1. INTRODUCTION 2. SWITCHES, CONTROLS, ADJUSTMENTS AND CONNECTORS EQ-215 FRONT PANEL EQ-230 FRONT PANEL EQ-215 REAR PANEL EQ-230 REAR PANEL 3. WORKING PRECAUTIONS 4. INSTALLATION UNPACKING MOUNTING CHANGING THE VOLTAGE CHANGING THE FUSE CONNECTION TO THE MAINS... -
Page 3: Introduction
There is a lot of characteristics that makes the ALTAIR graphic equalisers, one of the most highlighted on the audio professional market, here follows some of them:... -
Page 4: Switches, Controls, Adjustments And Connectors
2. SWITCHES, CONTROLS, ADJUSTMENTS AND CONNECTORS Following is the front/rear panel drawing of the switches, controls, adjustments and connectors that you could find in your ALTAIR graphic equaliser. A detailed explanation of each item appears in the corresponding section. EQ-215 FRONT PANEL EQ-230 FRONT PANEL LEVEL CONTROL. -
Page 5: Eq-215 Rear Panel
ALTAiR EQ-215/230 GRAPHIC ECUALISERS EQ-215 REAR PANEL EQ-230 REAR PANEL VOLTAGE SELECTOR. MAINS CONNECTOR AND FUSE HOLDER. FADER STATUS SETUP SWITCH. EARTH LINK SWITCH. OUTPUT SIGNAL CONNECTOR XLR-3-32. INPUT SIGNAL CONNECTOR XLR-3-31. -
Page 6: Working Precautions
The graphic equalisers are designed for standard 19" rack mounting, and occupy 2u (EQ-215) or 3u (EQ-230) rack space. CHANGING THE VOLTAGE The graphic equaliser unit is set to operate at 230VAC, 50-60Hz and at 115 VAC, 50- 60Hz. -
Page 7: Changing The Fuse
ALTAiR EQ-215/230 GRAPHIC ECUALISERS Set up the voltage selector, placed at the graphic equaliser rear panel, in the desired position. Graphic equaliser set up 115 VAC. Graphic equaliser set up 230 VAC. Make sure that the fuse is the right one for the selected voltage: ------------------->... -
Page 8: Connection To The Mains
ALTAiR EQ-215/230 GRAPHIC ECUALISERS CONNECTION TO THE MAINS The connection of the graphic equaliser to the mains takes place by means of a three- wire I.E.C. cord provided by the factory. The European standard color code is: Brown-Live, Blue-Neutral and Yellow/Green-Earth, keeps in mind this mains configuration, whenever handle the graphic equaliser plug. -
Page 9: Balanced Input
ALTAiR EQ-215/230 GRAPHIC ECUALISERS 1) Using twin-lead shielded cable: Floating sound source ) : Close. Ground-referenced sound source ( ) : Open. GRAPHIC EQUALISER SOUND SOURCE 2) Using single conductor coax cable: Floating sound source ) : Close. Ground-referenced sound source ( ) : Open. -
Page 10: Output Connection
ALTAiR EQ-215/230 GRAPHIC ECUALISERS OUTPUT CONNECTION The graphic equaliser output signal is carried out through two XLR-3-32 male connec- tors, one per channel. The outputs are balanced, with a nominal impedance of 100 Ω. The following graphics shows some of the different possibilities of connection, relying on the type of output signal, balanced or unbalanced and according to the ground configu- ration of the equipment (floating or ground-referenced). -
Page 11: Balanced Output
ALTAiR EQ-215/230 GRAPHIC ECUALISERS BALANCED OUTPUT: Floating sound destination unit ) : Close. Ground-referenced sound destintation unit ( ) : Open. GRAPHIC EQUALISER SOUND DESTINATION UNIT GROUND LINK In some installation, it might be necessary to isolate the graphic equaliser electric ground, from the system mains earth, in order to avoid ground loops, that could generate unwanted noises. -
Page 12: Turn On Delay Circuit
EQ-215/230 GRAPHIC ECUALISERS TURN ON DELAY CIRCUIT The ALTAIR graphic equalisers incorporates a delay circuit, consisting of a relay, which protects the output signal from switch-on transients. This delay takes two seconds, and in the meantime the equaliser remains in by-pass. -
Page 13: High Pass Filter Control
ALTAiR EQ-215/230 GRAPHIC ECUALISERS HIGH PASS FILTER CONTROL Each graphic equaliser channel provides a high pass filter of 12 dB per oc- tave, that are used for limiting the band width for lower frequencies in the equaliser output . The high pass filter adjustment may vary between 10 Hz and 300 Hz. In a normal application, in that we want to have available all the audible spectrum, we shall put the high pass filter in 10 Hz. -
Page 14: Frequency Switch X10
The graphic equaliser model EQ-230 provide three fader status setups: LEDs ON, SCAN and LEDs OFF, depending on the fader status setup switch , placed at the graphic equal- iser rear panel. The 2/3 octave model EQ-215 provide two fader status setups:: LEDs ON and LEDs... -
Page 15: Altair Eq-215/230 Graphic Ecualisers
ALTAiR EQ-215/230 GRAPHIC ECUALISERS Graphic equaliser EQ-230 response curve with each one of its band enhanced at +12 dB. Graphic equaliser model EQ-230 with different enhancements at 1KHz. -
Page 16: Leds On
ALTAiR EQ-215/230 GRAPHIC ECUALISERS OFF, according to the faders state setup switch , placed at the graphic equaliser rear panel. LEDs ON: In this switch position, the LEDs associated with the fader, remain lighting, give rise to a greater visibility in darkness places. -
Page 17: Block Diagram And How It Works
ALTAiR EQ-215/230 GRAPHIC ECUALISERS Let start to equalise. If our sound system is monoamplified, adjust the high pass filter, in such a way that limit the bandwidth to the bandwidth that the speakers of the system can reproduced. With this we will avoid to amplify signals which will not be reproduced and to send signals to speakers which are not able to reproduce. - Page 18 ALTAiR EQ-215/230 GRAPHIC ECUALISERS...
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Page 19: Technical Specifica Tions
NET WEIGHT: EQ-215: - 3,5 Kg. EQ-230: - 4,5 Kg. DIMENSIONS: EQ-215: - 483x89x220 mm. (19" x 3 1/2" x 8 3/4"). EQ-230: - 483x123x220 mm. (19" x 6 1/2" x 8 3/4"). POWER REQUIREMENTS: - 30 V.A. NOTE: 1) 0dBu = 0,775 V;... -
Page 20: Graphs
ALTAiR EQ-215/230 GRAPHIC ECUALISERS 9. GRAPHS Typical frequency response. Typical common mode relation ratio (CMRR). Typical total armonic distortion. Parametric filter setup at 1 KHz with different gains and Q (bandwidth). High pass filter at 10, 30, 100 and 300 Hz. -
Page 21: Warranty
ALTAiR EQ-215/230 GRAPHIC ECUALISERS 10. 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.
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