Built to exceed expectations at the highest levels, the 1234A smart active studio monitor is the trusted choice of professionals, with a feature set to match.
1234A SAM™ Studio Monitor

Active Crossovers

Directivity Control Waveguide (DCW™) Technology

SPL
125 dB

Frequency Response
29 Hz - 21 kHz (-6dB)

Dimensions
H 700 x W 890 x D 383 mm, (view in inches)

Welcome to the sweet spot
Designed as the first-choice main monitor solution for major recording studios, post production facilities and mastering suites, the 1234A stands tall amongst the world’s most accomplished monitoring systems. Combining power and precision, the 1234A offers neutral, uncoloured reference performance with great directivity, yielding a wide and stable sweet spot - even for multiple listeners over longer distances.

Perfect translation
In addition to its truthful transparency, the 1234A integrates closely with our GLM software via which it can be configured and calibrated for your listening environment, compensating for detrimental room influences to create a truly optimised monitoring solution, from stereo to immersive. This makes the 1234A is the perfect choice for professionals in larger rooms who demand perfect mix translation to other studios and systems.
Genelec
1234A SAM™ Studio Monitor
1 x 1234A main monitor
1 x individually calibrated RAM-XL amplifier
unit
1 x mains cable 1,8 m
1 x RJ45 cable 5 m (16 ft 4 in)
1 x RJ45 cable 10 m (32 ft 9 in)
2 x 10 m (32 ft 9 in) 4-pole Speakon
cables
1 x user manual
1234A SAM™ Studio Monitor
Awards
Technical Specifications

SPL
125 dB

Amplifier Power
2 X 750 W Bass (Class D) + 400 W Midrange (Class D) + 250 W Treble (Class D)

Frequency Response
29 Hz - 21 kHz ("-6 dB")

Accuracy of Frequency Response
± 2 dB (34 Hz - 20 kHz)

Driver Dimensions
2 x ⌀ 305 mm Bass + ⌀ 125 mm Midrange + ⌀ 25 mm Treble (view in inches)

Dimensions
H 700 x W 890 x D 383 mm, (view in inches)

Weight
73 kg / 160.9 lb

Connections
1 x XLR Analog Input
1 x XLR AES/EBU Input
1 x XLR AES/EBU Output
2 x RJ45 Control
1234A SAM™ Studio Monitor
Technical Specifications
System Specifications
Frequency Response
34 Hz - 20 kHz (± 2 dB)
Low cutoff -6dB
29 Hz
High cutoff -6dB
21 kHz

SPL
Peak SPL Maximum peak acoustic output per pair in a listening room with music material at 2 m.
≥130 dB
Short term max SPL Maximum short term sine wave acoustic output on axis in half space, averaged from 100 Hz to 3 kHz at 1 m.
≥125 dB
Long term max 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
Self-generated noise
Self-generated noise Self generated noise level in free space at 2 m on axis (A-weighted).
≤0 dB
Weight
Weight73 kg (160.9 lb)
Dimensions
Height
700 mm
Width
890 mm
Depth
383 mm

Enclosure
Enclosure material
MDF
Enclosure type
Reflex port
Drivers
Driver type
Cone
Count
2
Diameter
305 mm
Driver type
Cone
Diameter
125 mm
Driver type
Metal dome
Diameter
25 mm
Directivity

Harmonic distortion
> 200 Hz ≤0.5 %
Amplifier Section
Amplifiers
2 x 750 W Class D
3U rack mounted amplifier.
Height
132 mm
Width
483 mm
Depth
286 mm
Weight
11.2 kg
(24.7 lb)
400 W Class D
3U rack mounted amplifier.
Height
132 mm
Width
483 mm
Depth
286 mm
Weight
11.2 kg
(24.7 lb)
250 W Class D
3U rack mounted amplifier.
Height
132 mm
Width
483 mm
Depth
286 mm
Weight
11.2 kg
(24.7 lb)
Mains voltage
100-240 VAC 50/60Hz
Power consumption
ISS Active
≤6 W
Idle
≤40 W
Full output
2500 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.
For even more technical details please see product operating manual.
Key Technologies

Active Crossovers

Directivity Control Waveguide (DCW™) Technology

Intelligent Signal Sensing (ISS™) Technology

Optimized Amplifiers

Protection Circuitry

Smart Active Monitor (SAM™) Systems
Active crossover operating at low signal levels.
Audio electronic crossovers allow to split the audio signal into separate frequency bands that can be separately routed to individual power amplifiers which then are connected to specific transducers optimized for a particular frequency band.
Active crossovers come in both digital and analogue varieties. Genelec digital active crossovers include additional signal processing, such as driver protection, delay, and equalization.
Genelec analogue active crossover filters contain electronic components that are operated at low signal levels suitable for power amplifier inputs. This is in contrast to passive crossovers that operate at the high signal levels of the power amplifier's outputs, having to handle high currents and in some cases high voltages.
In a typical 2-way system the active crossover needs two power amplifiers — one for the woofer and one for the tweeter.
The active crossover design offers multiple benefits:
- The frequency response becomes independent of any dynamic changes in the driver's electrical characteristics or the drive level.
- There is an increased flexibility and precision to adjust and fine tune each output frequency response for the specific drivers used.
- Each driver has its own signal processing and power amplifier. This isolates each driver from the drive signals handled by the other drivers, reducing inter-modulation distortion and overdriving problems.
- The ability to compensate for sensitivity variations between drivers.
- The possibility to compensate for the frequency and phase response anomalies associated with a driver’s characteristics within the intended pass-band.
- The flat frequency response of a high-quality active loudspeaker is a result of the combined effect of the crossover filter response, power amplifier responses and driver responses in a loudspeaker enclosure.
Using the active approach enables frequency response adjustments and optimization of the full loudspeaker system, placed in various room environments, without expensive external equalizers. The end result is a simpler, more reliable, efficient, consistent and precise active loudspeaker system.
Directivity Control Waveguide (DCW™) for flat on- and off-axis response.
A revolutionary approach was taken by Genelec in 1983 with the development of its Directivity Control Waveguide (DCW™) used at the time in an egg-shaped enclosure. The Genelec DCW technology developed and refined over more than 30 years greatly improves the performance of direct radiating multi-way monitors.
The DCW technology shapes the emitted wavefront in a controlled way, allowing predictable tailoring of the directivity (dispersion) pattern. To make the directivity uniform and smooth, the goal is to limit the radiation angle so that the stray radiation is reduced. It results in excellent flatness of the overall frequency response as well as uniform power response. This advanced DCW technology minimizes early reflections and provides a wide and controlled listening area achieving accurate sound reproduction on- and off-axis.
Minimized early reflections and controlled, constant directivity have another important advantage: the frequency balance of the room reverberation field is essentially the same as the direct field from the monitors. As a consequence, the monitoring system's performance is less dependent on room acoustic characteristics.
Sound image width and depth, critical components in any listening environment, are important not only for on-axis listening, but also off-axis. This accommodates not only the engineer doing his or her job, but also others in the listening field, as is so often the case in large control rooms.
DCW™ Technology key benefits:
- Flat on- and off-axis response for wider usable listening area
- Increased direct-to-reflected sound ratio for reduced control room coloration
- Improved stereo and sound stage imaging
- Increased drive unit sensitivity up to 6 dB
- Increased system maximum sound pressure level capacity
- Decreased drive unit distortion
- Reduced cabinet edge diffraction
- Reduced complete system distortion
Intelligent Signal Sensing (ISS™) for power consumption reduction in stand-by mode.
Introduced early 2013, Genelec’s Intelligent Signal-Sensing technology has been developed to meet with both European Union ErP Directives and the company’s own wider sustainability commitments.
The Intelligent Signal Sensing, ISS™ circuitry tracks the signal input of the loudspeaker and detects if it is in use. If the ISS circuit does not find any audio on the input for a period of time, it sets the loudspeaker to a low-power sleep state and the loudspeaker will consume less than 0.5 watts. When an input signal is detected, the loudspeaker immediately turns itself on. Basically, the loudspeaker system will start saving power as soon as work is interrupted.
Additionally an ‘ISS Disable’ switch is located on each product’s back plate next to the other room response controls. First, when the mains power switch of the loudspeaker is set to “ON”, the ISS™ auto-start function (low-power sleep state on/off) of the loudspeaker is active.
If this function is not desired, the ISS™ function can be disabled by setting the “ISS Disable” switch on the back panel to “ON” position. In this mode, the monitor is only powered on and off using the mains power switch.
Note that the mains power switch will always turn the monitor off completely.
Each transducer is driven by its own optimized amplifier.
Audio electronic crossovers allow to split the audio signal into separate frequency bands that can be separately routed to individual power amplifiers which then are connected to specific transducers optimized for a particular frequency band.
In a typical 2-way loudspeaker system, the active crossover needs two power amplifiers — one for the woofer and one for the tweeter. The power amplifiers are connected directly to the drivers of an active loudspeaker, resulting in the power amplifier’s load becoming much simpler and well known. Each driver-specific power amplifier has only a limited frequency range to amplify (the power amplifier is placed after the active crossover) and this adds to the ease of design.
The active design principle offers multiple benefits:
- The power amplifiers are directly connected to the speaker drivers, maximizing the control exerted by the power amplifier’s damping on the driver’s voice coil, reducing the consequences of dynamic changes in the driver electrical characteristics. This may improve the transient response of the system.
- There is a reduction in the power amplifier output requirement. With no energy lost in the passive crossover filter components, the amplifier power output requirements are reduced considerably (by up to 1/2 in some cases) without any reduction in the acoustic power output of the loudspeaker system. This can reduce costs and increase audio quality and system reliability.
- No loss between amplifier and driver units results in maximum acoustic efficiency
- Active technology can achieve superior sound output vs. size vs. low frequency cut-off performance
- All loudspeakers are delivered as a factory aligned system (amplifiers, crossover electronics and enclosure-driver systems)
Sophisticated drive unit protection circuitry for safe operation.
When working in critical audio production environments it is essential that monitoring systems remain reliable and functional at all times. One of the main reasons behind Genelec’s excellent success in broadcasting environments is the reliability of our products and a key element behind the reliability is the internal protection circuitry found in all products since 1978.
The protection circuitry prevents driver failures by detecting signal levels, and in case of sudden peaks or constantly too high levels, taking the signal level down automatically. Of course this feature does not affect the sound quality in any way when working within the specifications of the loudspeaker, but only prevents inadequate input signals from breaking the loudspeaker.
Protection circuitry features and benefits:
- Reduces the output level when required, (e.g. when driver voice coil temperature reaches the safe limit) which highly improves the system reliability
- Appropriate protection circuitry design in every loudspeaker and subwoofer enables to maximise system output sound level.
Networked Smart Active Monitor (SAM™) Systems feature automatic calibration to the environment.
The last decade has experienced a rapid increase in global media content creation, resulting in significant changes in the way network facilities deal with increased workload. Now, more than ever, a growing number of audio productions are done in tighter, more confined working environments. This increases acoustic problems and lowers the reliability of monitoring. At the same time, a professional audio engineer needs to have high confidence in a reliable and precise monitoring system that reproduces sound neutrally and without distortion.
Built upon the solid electro-acoustic foundations of the 1200, 8000 and 7000 Series products, Genelec advanced SAM Systems are today’s most advanced and flexible monitoring solutions. They are an indispensable tool for audio professionals, as they are capable to automatically adapt to the acoustic environments and correct for levels, delays and room anomalies. SAM Systems can be controlled via Genelec proprietary Loudspeaker Manager (GLM™) network and software, enabling you to build a highly flexible and reliable monitoring system.
The GLM 3 software is a highly intuitive and powerful monitor control networking system that manages connectivity to all SAM studio monitors and subwoofers on the network – up to 30. The GLM 3 software features adjustment of levels, distance delays and flexible room response compensation equalization with the state-of-the-art and robust AutoCal™ automated calibration system. All parameters and settings are stored in system setup files or saved in each individual monitor or subwoofer if the GLM network needs to be disconnected.
Also, all acoustical features of SAM Systems can be optimised for different working styles or client demands. Additionally, even if the monitors or the production projects move between rooms, you can expect SAM technology to achieve the highest consistency in monitoring, providing a neutral sound stage imaging with low distortion.
Genelec SAM Systems offers a comprehensive, solution-oriented, intelligently networked product range supporting analogue and digital signals in virtually any working environment.
References
The highlight of TCM’s Genelec monitoring solutions can be found in the flagship recording studio. “The studio is used mainly by students who major in the Fine Art/Film Scoring course within the composition program,” explains TCM lecturer Hideaki Sano. “The course focuses on composition, arrangement and performance, but also studies practical techniques related to pre-production, studio recording, producing, and so on. The studio needed to be capable of recording an entire orchestra, and since we have a concert hall and other large performance spaces on campus, we wanted the studio to make efficient use of these facilities.”
Mr. Hideaki Sano of Tokyo College of Music
With this brief in mind it was clear that the studio would need to be the centrepiece of the new campus. To ensure the best possible results, TCM turned to world-renowned acoustician, Masami “Sam” Toyoshima, to handle the studio’s acoustic design. Meanwhile, the equally important task of studio planning and operation was given to Mixer’s Lab, thanks to its history and track record running its own studios as well as offering engineering and consultancy services.
The technology in the studio is clearly high-end, matching the standards that TCM demands. Nowhere is this clearer than with the studio monitoring. The solution comprises Genelec 1234A, 1238AC and 1238DF smart active main monitors in a 5.1.2 immersive configuration, with 8351A coaxial monitors for stereo nearfield monitoring. For Hideo Takada of Mixer’s Lab, the decision to go with Genelec monitors was an easy one: “I've been using Genelec reference monitors at work for a long time, so I know their sound inside out. They work well with acoustic instruments, pop music, and a wide variety of genres. It’s a studio monitor you can trust.”
Mr. Hideo Takada of Mixer's Lab
If the choice of brand was an easy decision, the configuration of the space was a different matter entirely. “The college originally requested the studio to be at least a 2-channel environment, and be able to conduct high-quality recording,” recalls Takada. “But as the studio planning developed, we considered that it should support surround. I had just experienced Dolby Atmos mixing myself, and realised the importance of it, so we opted for 1234As as L/R, a 1238AC for the centre channel, two 1238DFs for surrounds and two more 1238DFs as height speakers – due to the compact nature of the studio.”
For stereo nearfield work, TCM opted for 8351A three-way point source monitors from The Ones series. “What’s great about coaxial monitors is that you get one coherent sound,” explains Mixer’s Lab’s Tatsuo Umezu. “A certain sound can be perceived from one point as if it's a matter of course, and the centre of the sound doesn't get ‘blurred’. I can tell exactly where the mic was placed, and how far it was from the instrument. I suppose this is exactly what Genelec aimed for.”
A monitor needs to be comfortable to listen to, and Genelec has that quality.
Reflecting on the qualities the Genelec monitoring solutions have brought TCM, Sano is clearly very happy with their performance: “Genelec monitors have the same sound even when the playback volume is low, and that's one of the benefits. And the fact that it has become the industry standard is the key to our choice. Experiencing that industry standard sound is extremely beneficial for our students before they start to work as professionals.
“It's about the balance of the richness and the accuracy of the sound,” he continues. “A monitor needs to be comfortable to listen to, and Genelec has that quality – plus the accuracy to comprehend every detail of the sound whatever the genre. Genelec can precisely playback an orchestra, a violin solo, pop music, EDM, and much more. It’s a monitor we can completely count on.”
The new solution came about after Guetta identified a problem with the mixes that he was creating with his old system. “In the previous system that I had, the subs were so loud that they were not really realistic,” he explains. “If I would mix with those subs, sometimes I would end up with a record that didn’t have enough bass when played on other systems - because the bass in my room was so huge.”
With the 7380As installed, Guetta’s mixes now translate beautifully from his studio straight to the dancefloors of Ibiza, and the subwoofers have helped improve the overall sound in his room. “By installing the subwoofers, we were able to reposition David’s main monitors to avoid early reflections. Finding the best place for the subwoofers also meant that we had a great frequency response curve all the way from low to high frequencies,” notes Genelec’s Pasi Pönkkä, who travelled to Guetta’s studio to calibrate the system using Genelec’s GLM software. Using GLM, Pönkkä was able to analyse the acoustic environment of Guetta’s studio and then optimise each Genelec monitor and subwoofer accordingly - thereby reducing any negative influences of the room on the sound.
Pönkkä explains that “Each 7380A subwoofer is paired with a single 1234A monitor, so the low frequencies can be better localised. Also, the locations were chosen so that the subwoofer sums aren’t cancelling each other out. The overall result was that we were able to provide David with more bass extension, but with a much smoother and flatter response.”
“This is my reference, and this is my perfect setup.”
A further benefit that Guetta is enjoying is that he can now work for much longer periods without the listening fatigue that he used to experience. “When producing, I’m not really playing too loud, and the Genelec 1234As - even though they are huge - still sound very precise even when they aren’t loud,” he explains. “What I like about the 7380As is that I can work at a low volume so that I’m not too tired after a few hours, and it’s still very precise. But, if I want to blast it loud, it’s powerful enough to feel like it’s in a club.”
Reflecting on his newly upgraded monitoring system, Guetta is certain he made the correct decision. “It gives the feeling of how it’s going to sound in the club, but it’s also realistic,” he states. “This is my reference, and this is my perfect setup.”
Take a closer look at David Guetta’s studio, and find out more about his music and workflow:
Ozcan has been making music since the age of 14, when his instinctive skill with the flute and keyboard were the first signs of an emerging, prodigious talent. His first single, Chica Good, arrived in 2006 but it was 2011’s Reboot, swiftly followed by 2012’s The Box, that solidified his reputation. In the years since, he has produced not only a string of hit singles but also collaborations with peers including Paul Van Dyk and Tiesto, while continuing to push his own creative limits with the development of soft-synths and soundbanks.
However, most of that work was performed in less-than-ideal listening environments. “The first space that I worked in... I’m not sure I could call it a studio since it was in the attic of my parent’s home,” recalls Ozcan. “I just had two speakers in there – actually just two hi-fi speakers! Then I moved to an apartment and I had a room – so I put some acoustic treatment on the walls, some bass traps, and just two monitors and a sub. I made my music in there for years, but when my friends came to visit I’d tell them to stand in the corner because that’s where they could hear the bass properly! If you took one step to the side then the sound changed completely.”
Ozcan describes his new studio as “everything I’ve dreamed of for the last 15 years – I can’t quite believe that it’s here. This room reflects my energy. It’s an extension of myself and my music. When you close the door, you’re in a different world, it’s amazing.”
The room itself is a blazing celebration of neon, seamlessly shifting between colour schemes to suit the mood of the artist. Sculpted acoustic panels from Artnovion adorn the walls while Morel has even recreated Ozcan’s logo on the ceiling. The Genelec smart active monitoring system which forms the studio’s centrepiece is just as impressive, with two 1234As installed as main monitors, accompanied by a 7382A subwoofer. Adding symmetry, what appears to be a second 7382A is in fact a customised bass trap designed around a Genelec grille. In addition, two of the newly-launched 8351B coaxial point source monitors from The Ones range are installed on Ozcan’s desk for nearfield listening. The DJ describes the sound as “mind blowing”.
Towards the conclusion of the project, Morel and Ozcan shared the process of calibrating the Genelec monitoring system for the room. That work began with Genelec’s GLM calibration software, then was fine-tuned by ear. “We went very deep into the process,” says Morel. Yet ultimately, little tuning was actually required. “You don’t have to do much,” explains Ozcan, “with almost no tweaking it sounds fantastic. You feel it in your chest and it gives you goosebumps because you can hear everything. I can hear things I’ve never heard before!”
For Morel, who has now designed private studios for some of the world’s most celebrated DJ producers, this is one of his proudest achievements. “This ranks as one of the top three studios that I’ve created,” he declares without hesitation. “Certainly for the design, this is number one.”
A wholly-owned R&D subsidiary of G-bits, the company employs enthusiastic games fans with one simple mission - to produce ‘unique and great games’. As a result of Leiting’s dedication to creating all-round immersive experiences for its users, the company recently commissioned a 5.1.4 game audio studio based around Genelec Smart Active Monitors.
"For a games company like ours, an audio studio is a must," commented composer and game sound designer Knuckles (Jianyu) Zhang, who led the studio project. "Our requirements are quite special, though. What we want is not just a recording studio, nor a standard mixing studio or a reviewing studio. To be precise, what we want is a ‘Game Sound Lab’ to assist us in the conceptual design of games.”
Originally conceived as a surround sound studio, the acoustic design and construction of the project was handled by Qiao Zhenyu of Huanyu Acoustics, who persuaded Knuckles to go fully immersive. “I knew that many games had already used the 5.1 format to produce sound. But Qiao suggested that since it was already 5.1, why not make it 5.1.4 by adding the 4 height channels? I realised then that immersive audio technology is no longer a new thing, and we as creators surely have to learn to master this format."
The studio then engaged the system integrator DMT to install a pair of Genelec 1234As as its main stereo monitoring system, with a 5.1.4 immersive system comprising eleven 8330A nearfield two-way monitors in all positions - complemented by a 7370A subwoofer. All the monitors were supplied in a stunning Polar White finish, and the entire system was configured and calibrated by DMT using GLM loudspeaker manager software.
Genelec's sound is very reliable. You can trust what you’re hearing.
Knuckles’ choice of Genelec monitoring was arrived at after many years of experience of working with other monitors - and actually avoiding Genelec in his earlier years, believing them to be too flat! “I used various monitors to evaluate my work in different rooms. Sometimes, it would sound fine on my own monitors in my own room, but the results would often vary when I’d listen to material in other spaces. So I’d start to doubt what I was hearing.”
He goes on to say “It was then that I realised that I needed a genuinely truthful monitoring system to do my work. Genelec's sound is very reliable. You can trust what you’re hearing, and you can be certain about what you create using them. When I use the 1234s to listen to material, I can immediately evaluate the quality of mixing.”
Knuckles is convinced that immersive audio is the format of the future for games developers. “In recent years, the domestic games industry has attached greater importance to the sound experience. As we look to the international market, we’re finding that more and more games with big-budget production are using immersive audio to create the sound experience. Because sometimes, we just want to step into another world and forget about real life, or even ourselves, for a while.”
He concludes by saying “While others here are still at the learning and building phase with immersive rooms, we already have the experience and a place to create immersive audio. Now we’re one step ahead, we’re ready to take the lead!"
Game sound designer Knuckles (Jianyu) Zhang
How GLM™ (Genelec Loudspeaker Manager) Software Works
How GLM™ (Genelec Loudspeaker Manager) Software Works
Frustrated that your material doesn’t sound so great on other systems? In this video we show you how to calibrate the Genelec SAM™ monitors with the Genelec Loudspeaker Manager (GLM™) Software to get the most out of your room and ensuring that your mixes translate perfectly.