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1234A 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

1234A

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  

73 kg (161 lb)

Amplifier weight

11.2 kg (25 lb)

Monitor enclosure dimensions 

Height 

Width

Depth

 

700 mm (27

9

/

16 

in) 

890 mm (35 in) 

383 mm (15 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)

1234A

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

1234A

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 9.2015. All data subject to change without prior notice

Summary of Contents for 1234APM

Page 1: ...Genelec 1234A Smart Active Monitor Operating Manual 1234A ...

Page 2: ...t 9 in 4 pole Speakon cables One 10 m 32 ft 9 in RJ45 cable One 5 m 16 ft 4 in RJ 45 cable The 10 m cables are designed to go between the amplifier and the monitor enclosure If you need to make custom length cables for this please connect the Speakon cables pin to pin and see Table 1 for recommended wire gauges Amplifier Positioning The RAM XL amplifier is encased in a standard 19 3U rack case The...

Page 3: ...h a facing panel this should be fixed to the wall Leave a gap of about 5 10 mm in between the enclosure and the panel Fill this gap with a soft rubber gasket to allow for possible enclosure movement Ensure that the speaker cables can reach the rear of the enclosure If a light e g wooden but heavily braced wall is used the monitor enclosure should be mounted on vibration isolators with a resonant f...

Page 4: ...34A is set up using the GLM software The setup is fast and consists of the following steps Link all monitors and subwoofers in a LISTENING POSITION MICROPHONE GLM NETWORK GLM NETWORK GLM NETWORK USB RAM XL RAM XL Figure 6 GLM network cabling audio cabling not shown daisy chain by running CAT5 RJ45 network cables from the Network Adaptor to the CONTROL NETWORK connectors of the RAM XL modules and t...

Page 5: ...5 socket is a connection for the front panel warning LED LOUDSPEAKER CONNECTORS WOOFER MIDRANGE TWEETER WARNING ELECTRIC SHOCK HAZARD DO NOT OPEN DO NOT SUBJECT TO WATER OR MOISTURE RACCORDÉ À LA TERRE AVERTISSEMENT NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL ADRESSER TOUTE RÉPARATION À UN PERSONNEL QUALIFIÉ CET APPAREIL DOIT ÊTRE RISQUE DE CHOC ÉLECTRIQUE NE PAS OUVRIR...

Page 6: ... of increased heat load due to a blockage In an extreme case the amplifier may automatically shut off Safety Considerations Although this product has been designed in accordance with international safety standards to ensure safe operation and to maintain the monitor under safe operating conditions the following warnings and precautions must be observed Servicing and adjustment must only be perform...

Page 7: ...r Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Modifications not expressly approved by the manufacturer could void the user s authority to operate the equipment under FCC rules Guarantee This product is guaranteed for a period of two years against faults in materials or wor...

Page 8: ...or enclosure dimensions Height Width Depth 700 mm 279 16 in 890 mm 35 in 383 mm 15 in Amplifier dimensions Height Width front plate Width casing Depth 3U 132 mm 53 16 in 483 mm 19 in 425 mm 163 4 in 286 mm 111 4 in 1234A 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 ...

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