Frequently asked questions
1) POWER AMPLIFIERS
- What is the relation between the power and the ohms? for instance: in the MF 8 Altair power amplifier, its stereo power per channel is 400 watts at 4 ( for more information, see power scheme in A and MF series).
- Which indicators does it carries? :green switch on led+green signal led+clip red led+orange disconnection for temperature led+red led of error for channel fail
- Internally commutable power supply: -110/230 V-50-60 Hz.-MF 8/12-230 V-50/60 Hz- mf 16/24.For 110 V measures please ask for information
- Do they work in bridge? : yes, to 80 charge hours in the A and MF sries, and 40 hours of charge in the MF serie with full reliability.
- Do they incorporate controlled fan cooling?: yes, by termic circuit, with frontal-rear way
- Are the inputs balanced? : yes,electronically
- Do they carry start delay? : yes, of 5 seconds till the amplifier stabilizes its supplies
- Is there any possibility to modify the input sensibility? : yes, with inside adjustments on the input modular PCB.
- Size and weight relation:
- MF Serie:
- MF 8 : 2U/16 kg
- MF 12 : 2U/17kg
- MF 16 : 3U/29 Kg
- MF 24 : 3U/30 Kg
- A Series :
- A 3.5 : 2U/ 13KG
- A 7: 2U/14 KG
- A 11: 2U/15 KG
- MF Serie:
- Protections included : switch on and off transients, inrush current continous, sghortcircuit and open circuit and on temperature in the start amplifier and power supply against overload by thermic device(MF 16/24)
- Polarity : inside switch for selection of the input polarity.2+ or 3+
- Does it have a limiter in the input signal? : yes, it does exist a switchable limiter with fixed treshold, to enlarge the loudspeakers and power amplifiers´ life.
- What connectors does it carry? : XLR per channel + ¼ input jack (MF serie) + bonding posts and speakon (Mf serie) in the outputs, having in the channel 1 speakon both outputs (CH1-1+/5, CH2-2+/2-).XLR in the input and binding posts in the outpout(A serie).
2) EQUALIZERS
- Constant Q filter, assuring a minimum interaction between bands making an independent bandwith in every gain filter/attenuation
- Supply: internal selection, 110 V/230 V-50/60 Hz.
- Do we a signal when the supply is cut? : Yes, through the bypass, relay controled safety
- Are they balanced? : yes, electronically -Which is the working rank? : It´s eligible between +-12Dbs and +-6Dbs
- Does it carry any added filter? : yes, it has a high pass filter constantly variable(10Hz.-300 Hz.) to enclose the inside bandwith
- Size and weight relation :
- EQ 215:2U/4,5kg
- EQ 230: 3U/4,5kg
- DEQ 282:2U/4,5kg
- DEQ 282-S:2U/4,5 Kg
- Feed back indicator by red led in the corresponding frecuency(FFS), swichtable (only in EQ 230)
- The DEQ is a programmable equalizer, allowing controlling all the functions from a remote place.
- How does the remote control of the DEQ? : Through the MIDI in the DEQ 282 and the DEQ 282-S, and through the RS-232 in the DEQ 282-S
- Feedback finder system(FFS)and feedback elimination(SCAN)in the DEQ 282
- PASSWORD for restricted access by levels
- Supply: Internally selectable between 110 V/230 V-50/60Hz.
3) CROSSOVERS
- Number of ways :
- FA 524 :2 way stereo+subwoofer mono way;3,4, or 5 mono way
- FA 724 : 3 way stereo+subwoofer mono way;4,5,6 or 7 mono way
- filter pending : selectables filters,simetrics or sly, Linkwitz-Riley type of 24 Db/octave
- Does it have a limiter? : yes, it has a limiter circuit with adjustable treshold way between -14 and +14 Dbs in 1 Db passes
- Does it have the possibility of equalization and added delay? : yes, with the Eq and Delay cards, selectable
- How do we select the the frequencies?: with modifiable insert cards with the standard values
- Subwoofer : 82,100,120, and 150 Hz.
- Other ways : 100, 120, 150, 180, 200, 270, 330, 390, 470, 560, and 820 Hz., 1 Khz, 1K2, 1K5, 1K8, 2K2, 2K7, 3K3, 3K9, 4K7, 5K6, 6K8, and 8K2.
Any other different chosen frecuency will be considered as an option.Please ask for the commercial dept.
4) COMPRESSOR/NOISE GATE CN 220
a) As a compressor
- It provides a band compressor in each channel, from 80 Hz. To 10 Khz.Commutable.
- It provides treshold and variable compression relation
- Automatic adjustment in the times of attack and release
- Possibility of working in dual or stereo
- Provided with output level indication for 12 leds vumeter
- Provided with gain reduction indication
- Bypass for compressor delete
- Insert for chain gating
b) As a noise gate
- Possibility of selection of the bandwith work by high pass filter and variable large pass
- Attack and release times are variable, easily adjustable from the front panel
- Possibility of checking the result of the signal gating
- Treshold adjustment and supression bypass of the noise gate
- Range : shut state attenuation 80db/20db
5) QUAD NOISE GATE NG 440
- Selectable bandwith for high and low pass filter
- Attack and release times are switchable, easily adjustable from the front panel
- Possibility of checking the noise gating signal
- Bypass for noise gate supression
- Range : shut state attenuation 80db/20 db
6) INTERCOM SYSTEM
a) EF 200:
- What is the number of independent channels? 2
- Micro standard wired connection system
- Does it have a multichannle possibility? : yes, the EF 200 are linkable to other EF 200
- Remote mic-off and buzzer-off with mic-kill and buzz-kill operation
- How many mobile points are possible? The ALTAIR intercom system allows the connection between 60 beltpacks
- Possibility of input line signal to the communication
- Emergency supply with internal battery
b) EM 201:
- Light, mono channel and holding beltpack
c) 4W2-200
- Allows the connection from all the intercom system to a standard telephone line to call or receive calls
- Allows the communication with 2 wires intercom systems( 2 directions)
d) FL-200 :
- Buzzer flash light for noisy ambients
e) EM 201
- FL:intercomunication beltpack with buzzer flashlight
7) DISTRIBUTION AMPLIFIER/ZONE MIXER DA 410
- How many input channels does it have?: 2 stereo inputs
- How many output channels does it have? :5 stereo out puts and 10 mono outputs
- Possibility of volume regulation in every output
- Possibility of listening with poudspeakers and headsets in every output or input
- Optional transformers in all the inputs and/or outputs
- Incorporation of Phantom power supply to use it with a mic condenser
- Small size : 1 rack unit
- Led signal indicators
8) PROFESSIONAL MIXING CONSOLE E 3
- What are its weight and sizes?
- 32+4 channels : 105 Kg / 335x890x1624 mm (wdl)
- 40+4 channels: 120 Kg / 335x890x1884 mm (wdl)
- 48+4 channels: 135 Kg / 335x890x2140 mm (wdl)
- What is the auxiliaries number? : 16 ( 8 mono+4 stereo/8mono)
- Does it have Martix? : yes, 16x8, with digital control and with memory
- The power supply is redundant
- What is the background noise? 128 dbu,-84 dbu in the L-R outputs with Master level with 0db gain and 32 assigned channels
- L,R, and C outputs
- independent Msster output
- Does it have equialization? : yes, 4 points, 2 totally parametric +2 semiparametric with shelving filter selection in mono input modules and auxiliaries
- All the insets are balanced
- it carries automatization with motorized faders, 8 VCAs and 128 Mute presets
- Does it have the possibility to have more stereo channels? : yes, in 4 modules channels
- Does it carry an individual vumeter per channel? : yes, of 9 segments
- What type of vumeter does it carry? : Independents, by led bar for each auxiliary, group, or Matrix output, and coil vumeter for LCR and PFL/AFL
- Easy handling, accesible potentiometres
- Light and buttons contrast thanks to the reading lamps
- Robust and solid frame
- High quality of the incorporated spare parts(potentiometres, switchs, me mories, integrated circuits), for instance, ALPS for faders and potentiometres
- refrigerated and loose power supply
- Does it carry stereo channels? : yes, a 4 channels module in all the models
9) PROFESSIONAL MIXING CONSOLE ELECTRA
- What is the insert connection? The tip corresponds with the input signal towards the console(return) andthe ring with the ourput towards the effect processor(send).The insert islike a input line, canceling the previous.As it is usually said, tip=return,ring=send and sleeve=ground.
- What is the use of the led that incorporates the PFL vumeter? This led is going to tell us the peak level of some signals where thevumeter switch can not reply with enough speed; in that case the peaks cannot be detected.Nevertheless, the led can do it and is a efficient helpbecause otherwise some processed signalsthrough the console could be givingsaturation and that could not be seen any other way.
- Is there any headroom before the saturation, an input channel since the ledpeak is lighten up? Yes: 10 db before saturation (the average detection is before equalizationand after the fader)
- The auxiliar sendings are by defect configurated in PRE or POST in groups of 4. Can we modify this configuration for, for instance, put 6 auxiliaries inPRE and only 2 in POST-fade, or viceversa, or in any other desiredconfiguration? Yes, internally.To do this operation please contact ALTAIR