Genelec manual 1031A Operating Manual, Thd, Smpte-Im, Ccif-Im

Page 4

1031A Operating Manual

AUDIO PRECISION 1031anec LEVEL(dBr)

vs FREQ(Hz)

07 SEP 93 11:21:58

AUDIO PRECISION 1031anec LEVEL(dBr)

vs FREQ(Hz)

07 SEP 93 10:04:11

100

 

 

 

 

 

110

 

 

 

 

 

 

 

 

 

 

 

 

 

 

95

 

 

 

 

 

105

 

 

 

 

90

 

 

 

 

100

 

 

 

 

 

 

 

15°

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85

 

 

 

 

 

95

 

 

 

 

80

 

 

 

 

 

90

BASS TILT

 

TREBLE TILT

 

 

 

 

 

 

 

 

 

 

75

 

 

 

30°

 

85

 

 

 

 

 

 

 

45°

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

70

 

 

 

 

 

80

 

 

 

 

65

100

 

 

 

 

75

BASS ROLL-OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

60

95

 

 

 

 

70

 

 

 

 

 

90

 

 

 

 

65

 

 

 

 

 

20

100

1k

10k

20k

60

100

1k

10k

20k

 

20

Figure 4. The upper curve group shows the horizontal directivity characteristics of the 1031A in vertical configuration measured at 1 m. The lower curve is a 1/3 octave band power response, measured in an IEC approved reverberation chamber.

Figure 5. The curves show the effect of the bass tilt, treble tilt and bass roll-off controls on the free field response.

SYSTEM SPECIFICATIONS

 

CROSSOVER SECTION

 

AMPLIFIER SECTION

 

Lower cut-off frequency, -3 dB:

< 47 Hz

Input connector XLR female:

pin 1 gnd

Bass amplifier short term output power with a

Upper cut-off frequency, -3 dB:

> 22 kHz

 

pin 2 +

8 Ohm load:

120 W

 

 

 

pin 3 -

 

 

Free field frequency response of system: 48 Hz - 22 kHz (± 2 dB)

Maximum short term sine wave acoustic output on axis in half space, averaged from 100 Hz to 3 kHz:

@1m > 110 dB SPL

@0.5m > 116 dB SPL

Maximum long term RMS acoustic output in same conditions with IEC weighted noise (limited by driver unit protection circuit):

@1m > 101 dB SPL

@0.5m > 107 dB SPL

Maximum peak acoustic output per pair above console top, @ 1 m from the engineer with music

material:

> 120 dB

Self generated noise level in free field @ 1m

on axis: < 10 dB (A-weighted)

Harmonic distortion at 90 dB SPL @ 1m on axis:

Freq:

50...100 Hz

< 3%

 

> 100 Hz

< 0.5%

Drivers: Bass 210 mm (8") cone Treble 19 mm (3/4") metal dome

Both drivers are magnetically shielded.

Weight: 12,7 kg (28 lb)

Dimensions:

Height 393 mm (15 1/2")

Width 250 mm ( 9 7/8")

Depth 290 mm (11 7/16")

Input impedance:

10 kOhm balanced

Input level for 100 dB SPL output @ 1m: variable from +6 to -6 dBu

Input level for maximum short term sine wave output of 110 dB SPL @ 1m:

variable from +16 to +4 dBu

Subsonic filter below 45 Hz :

18 dB/octave

Ultrasonic filter above 25 kHz:

12 dB/octave

Crossover frequency, Bass/Treble:

2.2 kHz

Crossover acoustical slopes:

24 dB/octave

Treble tilt control operating range in 2 dB steps: from +2 to -4 dB & MUTE

Bass roll-off control operating range in 2 dB steps: from 0 to -8 dB @ 40 Hz

Bass tilt control operating range in 2 dB steps: from 0 to -6 dB @ 80 Hz & MUTE

The 'CAL' position is with all tone controls set to 'off' and the input sensitivity control to maximum (fully clockwise).

Treble amplifier short term output power with an

8 Ohm load:

120 W

Long term output power is limited by driver unit protection circuitry.

Amplifier system distortion at nominal output:

 

THD

< 0.05%

 

SMPTE-IM

< 0.05%

 

CCIF-IM

< 0.05%

 

DIM 100

< 0.05%

Signal to Noise ratio, referred to full output:

 

Bass

> 100 dB

 

Treble

> 100 dB

Mains voltage:

230, 100/200 or 115/230V

 

according to region

Voltage operating range:

±10%

Power consumption:

Idle

30 VA

 

Full output

160 VA

Genelec Document D1031AR001 Copyright Genelec Oy 6.2003. All data subject to change without prior notice

International enquiries:

Genelec, Olvitie 5

FIN-74100, Iisalmi, Finland

Phone +358 17 83881

Fax +358 17 812 267

Email genelec@genelec.com

 

www.genelec.com

In the U.S. please contact:

In China please contact:

Genelec, Inc., 7 Tech Circle

Genelec China Representative Office

Natick, MA 01760, USA

Soho New Town, 88 Jianguo Road

Phone +1 508 652 0900

D-1504, Chaoyang District

Fax +1 508 652 0909

Beijing 100022, China

Email genelec.usa@genelec.com

Phone +86 10 8580 2180

 

Fax +86 10 8580 2181

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Contents Genelec 1031A Operating ManualMonitoring System Genelec 1031A Monitoring System Overload indicators MaintenanceSafety considerations Accessories1031A Operating Manual THDSMPTE-IM CCIF-IM