Technical Specifications

SPL
121 dB

Amplifier Power
500 W Bass (Class D) + 250 W Midrange (Class D) + 200 W Treble (Class AB)

Frequency Response
30 Hz - 22 kHz ("-6 dB")

Accuracy of Frequency Response
± 2.5 dB (35 Hz - 20 kHz)

Driver Dimensions
⌀ 385 mm Bass + ⌀ 125 mm Midrange + ⌀ 25 mm Treble (view in inches)

Dimensions
H 810 x W 480 x D 420 mm, (view in inches)

Weight
57 kg / 125.7 lb

Connections
1 x XLR Analog Input
1 x XLR AES/EBU Input
1 x XLR AES/EBU Output
2 x RJ45 Control
1238A SAM™ Studio Monitor
SAM™ Studio Monitor
Technical Specifications
Our largest three-way midfield design, the 1238A adapts to your acoustic space to deliver high-SPL reference precision.

System Specifications
Frequency Response
35 Hz - 20 kHz (± 2.5 dB)
Low cutoff -6dB
30 Hz
High cutoff -6dB
22 kHz

SPL
Peak SPL
≥124 dB
Maximum peak acoustic output per pair in a listening room with music material at 2 m.
Short term max SPL
≥121 dB
Maximum short term sine wave acoustic output on axis in half space, averaged from 100 Hz to 3 kHz at 1 m.
Long term max SPL
≥116 dB
Maximum long term RMS acoustic output in the same conditions with IEC weighted noise (limited by driver unit protection circuit) at 1 m.
Self-generated noise
Self-generated noise
≤10 dB SPL
Self generated noise level in free field at 1 m on axis (A-weighted).
Weight
Weight57 kg (125.7 lb)
Dimensions
Height
810 mm
(31 7/8 in)
Width
480 mm
(18 7/8 in)
Depth
420 mm
(16 1/2 in)

Enclosure
Enclosure material
MDF
Enclosure type
Reflex port
Drivers
Driver type
Cone
385mm (15 in) cone
Diameter
385 mm
(15 1/8 in)
Driver type
Cone
125 mm (5 in) cone
Diameter
125 mm
(4 7/8 in)
Driver type
Metal dome
25mm (1 in) metal dome
Diameter
25 mm
(1 in)
Directivity

Harmonic distortion
> 200 Hz ≤0.5 %
Group delay
The latency at high frequencies from the input to the acoustic output, measured in the analog input:
Extended Phase Linearity in GLM set to OFF
5.1 ms
In Genelec performance graphics, the time of converting the from an electronic input signal to the acoustic output in a Genelec monitor is described by two factors – latency and group delay. The group delay factor can be read in the graphics for a specific frequency. The total frequency-specific input-to-output delay is a sum of the latency and group delay factors. To understand the significance of this total delay, consider that moving a loudspeaker away by 1 meter creates an additional delay of about 3 ms.

Amplifier Section
Amplifiers
500 W Class D
Height
132 mm
(5 1/4 in)
Width
483 mm
(19 in)
Depth
252 mm
(9 7/8 in)
Weight
6 kg
(13.2 lb)
250 W Class D
200 W Class AB
Mains voltage
100-240 VAC 50/60Hz
Power consumption
ISS Active
≤0.5 W
Idle
≤25 W
Full output
750 W
Signal processing section
Connectors
Input
Analog signal input connector XLR female, balanced 10 kOhm.
Input
Digital signal input connector XLR female 110 Ohm.
Output
Digital signal output / Thru connector XLR male 110 Ohm.
2 x Control
Two CAT5 (RJ45) GLM Network connectors for computer control using the Genelec Loudspeaker Manager (GLM) software.