1234AC Operating Manual
www.genelec.com
International enquiries:
Genelec, Olvitie 5
FIN-74100, Iisalmi, Finland
Phone +358 17 83881
Fax +358 17 812 267
Email [email protected]
In the U.S. please contact:
Genelec, Inc., 7 Tech Circle
Natick, MA 01760, USA
Phone +1 508 652 0900
Fax +1 508 652 0909
Email [email protected]
In China please contact:
Beijing Genelec Audio Co.Ltd
Room 101, 1st floor
Building 71 B33, Universal Business Park
No. 10 Jiuxianqiao Road, Chaoyang District
Beijing, China
Phone +86 (10) 5823 2014
Post code: 100015
Email [email protected]
AMPLIFIER SECTION
SIGNAL PROCESSING SECTION
SYSTEM SPECIFICATIONS
1234AC
Lower cut-off frequency, –6 dB
< 29 Hz
Upper cut-off frequency, –6 dB
> 21 kHz
Accuracy of frequency response, ± 2.0
dB
34 Hz – 20 kHz
Maximum short term sine wave acoustic
output on axis in half space, averaged
from 100 Hz to 3 kHz at 1 m
125 dB SPL
Maximum long term RMS acoustic
output in the same conditions with
IEC weighted noise (limited by driver
protection circuit) at 1 m
120 dB SPL
Maximum peak acoustic output per pair
in a listening room with music material
at 2 m
130 dB
Self generated noise level in free space
at
2 m on axis (A-weighted)
0 dB
Harmonic distortion at 95 dB SPL at 1
m on axis
Freq: 50…200 Hz
> 200 Hz
< 3 %
< 0.5 %
Drivers
Bass
Midrange
Treble
All drivers are magnetically shielded
2 x 305 mm (12 in) cone
125 mm (5 in) cone
25 mm (1 in) metal dome
Monitor enclosure weight
79.5 kg (175 lb)
Amplifier weight
11.2 kg (25 lb)
Monitor enclosure dimensions
Height
Width
Depth
489 mm (19
1
/
4
in)
1210 mm (47
5
/
8
in)
412 mm (16
1
/
4
in)
Amplifier dimensions
Height
Width (front plate)
Width (casing)
Depth
3U 132 mm (5
3
/
16
in)
483 mm (19 in)
425 mm (16
3
/
4
in)
286 mm (11
1
/
4
in)
1234AC
Bass amplifier short term output power
Midrange amplifier short term output
power
Treble amplifier short term output power
2 x 750 W
400 W
250 W
Long term output power is limited by driver protection circuitry
Amplifier system THD at nominal output
<0.003 %
Signal to Noise ratio, referred to full
output
Bass
Midrange
Treble
>116 dB
>119 dB
>115 dB
Mains voltage
100-120, 220-240 VAC
50/60 Hz
Power consumption
Standby
Idle
Full output, long term
Full output, peak
6 W
40 W
1000 W
2500 W
1234AC
Analog signal input connector XLR
female, balanced 10 kOhm
Maximum analog input signal
Analog input sensitivity (100 dB SPL at
1 m)
Analog input gain selection
pin 1 gnd
pin 2 non-inverting,
pin 3 inverting
+25.0 dBu
-6 dBu
0, +6, +12, +18 dB
Digital signal input connector XLR
female 110 Ohm
Digital signal output / Thru connector
XLR male 110 Ohm
Digital audio input
Word length
Sample rate
Digital input sensitivity
(100 dB SPL at 1 m )
Digital input gain selection
AES/EBU Single Wire or
Dual Wire
AES/EBU Single Wire or
Dual Wire
16 - 24 bits
32 - 192 kHz
-30 dBFS
0, +6, +12, +18 dB
Control network
Type
Connection
Proprietary GLM™ network
2 RJ45, CAT5 cables
Crossover frequency
Bass/Mid
Mid/Treble
420 Hz
3.2 kHz
GLM
TM
software frequency response
adjustment
Notch filters
Shelving filters
4 LF and 2 HF
2 LF and 2 HF
System calibration
Genelec GLM AutoCal™
Genelec Document D0127R001a Copyright Genelec Oy 8.2017. All data subject to change without prior notice
