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SOLIDYNE

 

AUDIMAX 362 

Pág. 19

 

Chapter 5  –  Technical Specifications 

 

Input 

XLR3 connector, self-adjusted level 
Level: -10 dBu to + 15 dBu 
Z= 600 / 10 Kohms, balanced 

Output 

Balanced, + 4 dBu Z= 600 / 10 Kohms, with 
de-emphasis 

MPX Output 

600/10 Kohms, factory set level to 
standard 4 Vpp 
Differential output to cancel hum loops 
between transmitter and studio ground 

Frequency Response 

20 - 16.000 Hz +/- 0,5 dB 
measured below compression & limiter 
threshold 

Harmonic Distortion 

Below 0,02 % @ 30-15.000 Hz 

Noise 

Below - 90 dBA ref 100 % modulation 

Stereo Separation 

> 75 dBA 

Subsonic Filter 

Chebyshev 2nd order, 15 Hz 
Asymmetry Cancelling 
5 : 1 cancelling effect, using Khann-Bonello 
method 

Expander 

10:1 slope, 100 uS attack time 
AGC (wideband) 
VCA controlled, 30 dB range 

Multiband Compressors 

3 bands, 18 dB/octave, Linear Phase crossover 
Compressors: 30 dB full range, 5:1 slope 
Automatic attack time / Release controlled by 
Energy panel controls 
IM Cancelled Clipper 
IM attenuation > 30 dB below 250 Hz 
Dynamic EQ 
0 - 12 dB dynamic boost at Low, Mid and High 
Frequency 

Processing Power 

7 stages of processing devices 

 

Power 

115 V / 230 V (rear switch selected) 
50/60 Hz, 20 W 

Dimensions 

19" rack mount. Module one (44,4 mm) 

Pilot tone stability 

+/- 0,002 % (+/- 0,5 Hz) 

Stereo Coder Specifications 

Measured from internal Stereo coder 
jumper to MPX out 

Audio input 

2 Vpp for 100 % MPX output (4 Vpp) 

Frequency Response 

15 Khz/5 order elliptic LP filter 
20-15.000 +/- 1 dB 
Attenuation at 19 Khz > 50 dB 

Harmonic Distortion 

Less than 0,01 % THD at 1 Khz 
Below 0,015 % 20-10.000 Hz 

Signal to Noise Ratio 

Better than 85 dBA with reference to 
100% modulation 

Stereo Separation 

Better than 50 dB @ 20-10.000 Hz 
Typical > 60 dB at 1 Khz 
38, 57, 76 & 95 KHz suppression 
Below - 70 dB 

Содержание AUDIMAX 362

Страница 1: ...3 bands audio processor for FM Users manual 3 de Febrero 3254 1429 Buenos Aires Argentina Tel 54 11 4702 0090 e mail info solidynepro com Fax 54 11 4702 2375 Web www SolidynePRO com Last revision 2001...

Страница 2: ...P g 2 AUDIMAX 362 SOLIDYNE...

Страница 3: ...Introduction 8 2 2 2 Blocks Diagram 9 1 2 Processing Stages 9 Stage 1 Peak Asymmetry Canceller 9 Stage 2 Input Expander 9 Stage 3 Level Input Control 10 Stage 4 Multiband Compressors 10 Stage 7 Stereo...

Страница 4: ...P g 4 AUDIMAX 362 SOLIDYNE...

Страница 5: ...ded twisted pair audio cables of good quality for audio connections microphone type Input and output connectors are XLR type as is standard female for the inputs and male for the outputs Connect as th...

Страница 6: ...f electromagnetic type They handle line levels of the order of 10dBv 0 36 Volts The connectors typically used on this kind of units are RCA o male plugs TRS 2 7 3 Unbalanced output to balanced input I...

Страница 7: ...duced internationally see mentioned article AES Today Orban Omnia Aphex etc use our ideas The concept of psychoacoustic processing is simple in essence although of complex accomplishment It consists o...

Страница 8: ...x 362 has a great advantage it does not have critical adjustments This means that in any position of his controls always it sounds well The adjustment can be made then by inexpert people Simply taking...

Страница 9: ...ry canceller is used This technique based in a discovery of the Dr Leonard Kahn acquires international validity with the work of Oscar Bonello published at the Journal of AES Vol 24 5 in which it is d...

Страница 10: ...ble sensation produced by the level variations of an audio signal is related to the changes happened in the first 50 milliseconds and is little dependent of the reached final value This implies that a...

Страница 11: ...ore a frequency band is emphasized grater is the action of the audio compressor previous to the transmitter for that band Equalize a band implies to unbalance the entire audio spectrum It doesn t happ...

Страница 12: ...hat normally is wasted Audimax 362 processor uses a MPX Processing technology named Super Modulation This processing consists on a system that controls the peaks operating at 608 Khz eliminating the p...

Страница 13: ...ll adjust automatically The automated input level control eliminates variations of level due to badly use of the air console on the part of the DJ s or inexperienced operators That is to say if the le...

Страница 14: ...ing you will obtain a very hard sound on the air with high energy but too compressed smaller dynamic range and with less definition more clipping Normally an suitable level is obtained when the indica...

Страница 15: ...WLEDGE OF THE MATRIX STEREO THEORY OR DON T HAVE THE APPROPRIATE MEASUREMENT SET DO NOT INTEND TO CALIBRATE THE STEREO CODER 4 1 Test points diagram components side 4 2 Verify Pilot Level a Connect to...

Страница 16: ...th trigger level the center of the wave in order to have it centered at screen Adjust vertical sensitivity to 50 mV Div You must get a signal like FIG 2 If not you must do a slight change in the frequ...

Страница 17: ...floor at 0 01 in order to measure the real distortion of 362 stereo coder is recommended to use a procedure not based on modulation monitors Proceed this way a Connect to ground Test Point TP1 in ord...

Страница 18: ...SOLIDYNE AUDIMAX 362 P g 18...

Страница 19: ...ompressors 3 bands 18 dB octave Linear Phase crossover Compressors 30 dB full range 5 1 slope Automatic attack time Release controlled by Energy panel controls IM Cancelled Clipper IM attenuation 30 d...

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