1238A
Large three-way active midfield studio monitor with a 15-inch bass driver, a Directivity Control Waveguide and a separate rack-mountable RAM-L amplifier module. It suits professionals in larger control rooms who want networked calibration through GLM software.
- Three-way active midfield monitor with 385 mm bass driver
- 500 W + 250 W + 200 W amplifiers, separate rack-mountable RAM-L module
- Short-term max SPL of 121 dB or more, 30 Hz–22 kHz (-6 dB)
- Analog XLR and AES/EBU XLR in, AES/EBU XLR out, 2 x RJ45 GLM control
- Room calibration via GLM software and AutoCal 2
- Weighs 57 kg; 2-year warranty plus 3 more years when registered
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The 1238A is a three-way active monitor built on the acoustic design of the earlier 1038, with Smart Active Monitoring added. It combines a 385 mm bass cone, a 125 mm midrange cone and a 25 mm metal dome treble driver. Each driver has its own amplifier (500 W Class D bass, 250 W Class D midrange, 200 W Class AB treble) behind an active crossover. A Directivity Control Waveguide keeps the on-axis and off-axis response even, and the enclosure is a reflex-ported MDF cabinet. Quoted short-term maximum SPL is 121 dB or more.
The amplifier is housed in a RAM-L module that can be rack-mounted away from the enclosure, so the speaker can be flush-mounted in a wall. Protection circuitry limits the output level to guard the drivers. Intelligent Signal Sensing puts the monitor into a sleep state drawing 0.5 W or less when no signal is present, and this can be switched off at the rear panel.
The monitor has one balanced XLR analog input, an XLR AES/EBU input and an XLR AES/EBU output/thru. Two RJ45 ports connect it to the GLM network, where the Genelec GLM software handles level, distance delay and room response compensation using AutoCal 2. Calibration needs GLM plus either a 9320A SAM Reference Controller or a GLM Calibration Kit, both sold separately.
Video
Specifications
- Brand
- Genelec
- Model
- 1238A
- Category
- Studio › Studio monitors
Audio
- Frequency response (-6 dB)
- 30 Hz - 22 kHz
- Accuracy of frequency response
- ± 2.5 dB (35 Hz - 20 kHz)
- Peak SPL (per pair, at 2 m)
- ≥124 dB
- Short term max SPL (at 1 m)
- ≥121 dB
- Long term max SPL (at 1 m)
- ≥116 dB
- Self-generated noise
- ≤10 dB SPL
- Harmonic distortion
- 50…200 Hz ≤1 %, > 200 Hz ≤0.5 %
- Group delay (Extended Phase Linearity OFF)
- 5.1 ms
Drivers and enclosure
- Bass driver
- 385 mm (15 in) cone
- Midrange driver
- 125 mm (5 in) cone
- Treble driver
- 25 mm (1 in) metal dome
- Enclosure type
- Reflex port
- Enclosure material
- MDF
Amplifiers and power
- Bass amplifier
- 500 W Class D
- Midrange amplifier
- 250 W Class D
- Treble amplifier
- 200 W Class AB
- Mains voltage
- 100-240 VAC 50/60 Hz
- Power consumption (ISS active)
- ≤0.5 W
- Power consumption (idle)
- ≤25 W
- Power consumption (full output)
- 750 W
Inputs and outputs
- Analog input
- 1 x XLR female, balanced 10 kOhm
- Digital input
- 1 x XLR female AES/EBU, 110 Ohm
- Digital output / thru
- 1 x XLR male AES/EBU, 110 Ohm
Connectivity
- Control
- 2 x RJ45 (CAT5) GLM Network
Physical
- Dimensions (H x W x D)
- 810 x 480 x 420 mm
- Weight
- 57 kg (125.7 lb)
- Amplifier module dimensions (H x W x D)
- 132 x 483 x 252 mm
- Amplifier module weight
- 6 kg (13.2 lb)
In the box
- Contents
- 1238A monitor, front plate, 2 rack mount ears, operating manual
- Cables
- Mains cable 1.8 m, RJ45 cable 5 m
- Warranty
- 2 years, plus 3-year extension when registered on MyGenelec