background image

Genelec Document D0071R001 Copyright Genelec Oy 2.2006. All data subject to change without prior notice

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: 
Genelec China Representative Office

Soho New Town, 88 Jianguo Road

D-1504, Chaoyang District
Beijing 100022, China

Phone +86 10 8580 2180 

Fax 

+86 10 8580 2181

Email [email protected]

AMpLIfIER SEcTIoN

cRoSSovER SEcTIoN

SySTEM SpEcIfIcATIoNS

HT324AC Operating Manual

Fig 8: The above curves illustrate the effect of the 'bass tilt', 'bass roll-off' 
and 'bass',' mid' and 'treble' level controls on the free field response, 

measured at 2 m

Fig 9: The upper curve group shows the horizontal directivity 
characteristics of the HT324AC in its horizontal configuration measured 
at 29m. The lower curve is a 1/6 octave power response measurement, 
derived from 144 directivity measurements..

Lower cut-off frequency, -3 dB: 

 

32 Hz

Upper cut-off frequency, -3 dB: 

 

20 kHz

Free field frequency response of system:     
 

 

33 Hz - 20 kHz (± 2.5 dB) 

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

 

123 dB SPL

Maximum long term RMS acoustic output in same 
conditions with IEC-weighted noise (limited by 
driver unit protection circuit)@ 1 m: 
 

 

 

118 dB SPL

Maximum peak acoustic output per pair @ 2 m from 
the engineer with music material: 
 

 

 

125 dB 

Self generated noise level in free field @ 2 m on 
axis: 

 

 

15 dB(A)

Harmonic distortion at 100 dB SPL @ 1m on axis: 
  

Freq:  

50...200 Hz   <1% 

 

 

200...10kHz  <0.5% 

Drivers: 
 

Bass 

2 x 305 mm (15") cone 

 

Mid 

1 x 130 mm (5") cone 

 

Treble  

1 x 25 mm (1") metal dome  

Weight: 

Speaker 84 kg (185 lb)

 

 

 

Amplifier 30 kg (66 lb) 

Speaker dimensions (Horizontal mounting): 

 

 

Height 489 mm (19 1/4”)

 

 

Width 1210 mm (47 5/8”)

 

 

Depth 412 mm (16 1/8”) 

*Amplifier dimensions: 
 

 

Height 310 mm (12

3

/

16

") 

 

 

Width 483 mm (19")

 

 

 

Depth 250 mm (9

13

/

16

")*

Bass amplifier output power with an 8

 load:    

Short term 

 

2 x 400 W

Mid amplifier output power with a 8

 load:     

Short term 

 

350 W

Treble amplifier output power with an 8

 load:  

Short term 

 

120 W

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

Slew rate: 

 

80 V/µs

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 

 

 

Mid 

100 dB 

 

 

Treble 

100 dB 

Mains voltage: 100/200 or 115/230V
Voltage operating range at  
 

230V setting: 

207 - 244 V (-10/+6 %) 

 

115V setting: 

104 - 122 V (-10/+6 %)

Power consumption: 
 

Idle 

 

70 W 

 

Full output 

 

1000 W

Input connector: XLR female 

pin 1   gnd 

 

 

 

pin 2   +   

 

 

 

pin 3    -

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 output of 126 dB 
SPL @ 1m: 

variable from +32 to +20 dBu 

Subsonic filter below 25 Hz : 

18 dB/octave

Ultrasonic filter above 22 kHz: 

12 dB/octave 

Crossover frequencies:  

 

 

 

Bass/Mid 

400 Hz 

 

 

Mid/Treble   3.2 kHz 

Crossover acoustical slopes: 

>24 dB/octave 

Level control operating range in 1 dB steps: 

 

Bass 

from 0 to -6 dB & MUTE

 

 

Mid 

from 0 to -6 dB & MUTE

 

 

Treble 

from 0 to -6 dB & MUTE

 

Bass roll-off control in 2 dB steps: 

 

 

from 0 to -8 dB @ 32 Hz

 

Bass tilt control operating range in 2 dB steps:  

 

 

from 0 to -8 dB @ 50 Hz

The 'CAL' position is with all tone controls set to 'off' 

and input sensitivity control to maximum and cor-
responds to a maximally flat free field response.

Summary of Contents for HT324AC

Page 1: ...Genelec HT324AC Three Way Active Loudspeaker Operating Manual HT324AC ...

Page 2: ...d standby modes by a remote control unit connected to the respec tive 12 V DC trigger inputs on the amplifier back panel Activate the function by turning the REMOTE CONTROL dip switch on the amplifier panel to ON Loudspeaker positioning The HT324AC is designed to be flush mounted in either the vertical or horizontal configuration The DCW should be rotated so that the treble and midrange drivers al...

Page 3: ...e using the tone controls BASS TILT BASS ROLL OFF BASS LEVEL MIDRANGE LEVEL and TREBLE LEVEL These controls are accessed through the amplifier unit s front panel The default setting of these controls is in the OFF position which yields a flat frequency response when the speaker is operated in an anechoic environment Note that only one switch in each control group should be in the ON position The r...

Page 4: ...nectors Fig 3 Speaker mounting Fig 4 Speaker mounting details Fig 6 Recess for loudspeaker connectors Rear view Fig 1 Location of the acoustic axis in horizontal and vertical configurations Note the alignment of the DCW Fig 5 Eliminating discontinuities ...

Page 5: ...e power supply by removal of the mains cable before chang ing a fuse Clean the amplifier unit s air filter every six months or more frequently in dusty environments The air filter is located behind the grille found to the left of the front panel The air filter can be cleaned with a vacuum cleaner without removing the grille Safety considerations Although the HT324AC has been designed in accordance...

Page 6: ...armonic distortion at 100 dB SPL 1m on axis Freq 50 200 Hz 1 200 10kHz 0 5 Drivers Bass 2 x 305 mm 15 cone Mid 1 x 130 mm 5 cone Treble 1 x 25 mm 1 metal dome Weight Speaker 84 kg 185 lb Amplifier 30 kg 66 lb Speaker dimensions Horizontal mounting Height 489 mm 19 1 4 Width 1210 mm 47 5 8 Depth 412 mm 16 1 8 Amplifier dimensions Height 310 mm 123 16 Width 483 mm 19 Depth 250 mm 913 16 Bass amplifi...

Reviews: