Availability: Usually Ships in 2 to 3 Business Days. The amplifier unit integrated into the cabinet contains active crossover filters, driver overload protection circuits and power amplifiers. This new construction technique provides excellent laminar flow characteristics with minimal turbulence noise and enables an optimal packing of a very long reflex tube into a small space. Cable Finder. Made In the USA. Deal of the Day.
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The Genelec A was in production between and It was replaced by the A model. Adapted to all low frequency monitoring situations, the amplifier unit integrated into the cabinet contains active crossover filters, driver overload protection circuitry, power amplifier and complete bass management system.
The subwoofer offers superior performance in recording studios, post-production facilities, mobile vans, radio and TV broadcasting. The review was published in October 21st in 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.
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. The principle of bass management is that the bass content of the main channels and the Low Frequency Effect LFE channel are directed and reproduced only by loudspeakers capable of handling them, whether they are main system loudspeakers or one or more subwoofer s.
In stereo reproduction, signals from 20 Hz to 20 kHz need to be replayed. Large multi-way monitoring systems will reproduce such a wide bandwidth evenly.
With multichannel audio, professional and consumer audio systems must also be able to reproduce audio between 20 Hz and 20 kHz for each channel. To achieve this, main monitors, subwoofers and crossover electronics should work together. A Bass Management system uses either analogue electronic circuitry or software based filtering which will filter low frequency information from the main channels and route that information to one, or more, subwoofer feed.
The dedicated LFE channel can also be monitored via that subwoofer and added to the low frequencies of the other main channels. The demands placed on subwoofers over the last years have increased substantially to the point where traditional design concepts are no longer valid. For Genelec, in order to achieve the absolute best performance possible, bold initiatives must be taken. Drawing on years of acoustic research and knowledge, Genelec's engineering group accepted the challenges placed upon them in the beginning of the 21st Century.
It provides excellent laminar flow characteristics with minimal turbulence noise and enables an optimal packing of a very long reflex tube into a small space. The learnings from the LSE Technology are also utilized in the reflex port design of our aluminium enclosure products.
The spiral-shaped design yields an extremely rigid enclosure exterior while also forming the subwoofer's integral port. The fact that one is part of the other means that air flow in and out of the enclosure's interior through the port is totally unrestricted. This results in an extraordinarily accurate and responsive low-frequency system with measured second and third harmonic distortion levels typically better than 30 dB below the fundamental. The result is a product range with impeccable technical performance: The Genelec LSE subwoofer range is unique, complete, functional, different from any other products on the market, and consistent.
In a typical 2-way loudspeaker system, the active crossover needs two power amplifiers — one for the woofer and one for the tweeter. 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.
When working in critical audio production environments it is essential that monitoring systems remain reliable and functional at all times. 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.
The interaction between room acoustic and loudspeaker radiation is complex. All Genelec loudspeaker systems feature room response adjustments to compensate for the room influences and retrieve a flat frequency response at the listening position. Genelec analogue loudspeaker systems provide versatile Room Response Controls. They include depending on models :. At low frequencies two main controls are provided.
The Bass Tilt control, which acts as a shelving filter together with the Bass Roll-off control allowing you to optimize the low and very low frequency response of the system in different installations. Bass, midrange and treble level controls are provided in large systems. These controls allow to optimize the relative balance between the various pass bands. The operating manual and datasheet of each loudspeaker contains a list of preferred room response control settings for different installations.
These have been specified out of long practical experience and measurements of various kind of typical acoustic environments. The system measures the response in the listening area and applies relevant compensation in the low and low-mid frequencies to minimise the detrimental room acoustic anomalies as well as the differences between various listening positions.
AutoCal also aligns relative levels, time-of-flight, as well as adjusts correct crossover phase called AutoPhase for all subwoofers on the network. The Acoustic Response Editor provides accurate graphical display of the measured response, filter compensation and the resulting system response for each monitor, with full manual control of acoustic settings.
Hifi Musik, June SE. Hifimaailma Magazine, May FI. Hifimaailma Magazine, August FI. Mix, April GB. Hifi-lehti, August FI. Tekniikan Maailma, June FI. Key Technologies. Active Crossovers. Bass Management System. Optimized Amplifiers. Protection Circuitry. Room Response Compensation. Active crossover operating at low signal levels.
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 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.
Bass Management System handles multichannel low frequency content. Each transducer is driven by its own optimized amplifier. This may improve the transient response of the system. There is a reduction in the power amplifier output requirement. 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. Sophisticated drive unit protection circuitry for safe operation. Protection circuitry features and benefits: Reduces the output level when required, e.
Precise room response compensation for optimizing in-room performance.
Genelec 7070A LSE Bass Managed Active Subwoofer
Update your browser to view this website correctly. Update my browser now. When Genelec introduced its Series of active subwoofers, I was intrigued by these systems, which not only provide solid, below 20Hz LF reproduction, but also offer 6. This creates a very long reflex tube in the smallest possible enclosure by combining a front-firing woofer with a large side-exit port. As an added plus, the rods double as handles for moving the sub.
Field Test: Genelec 7070A Active Subwoofer
Update your browser to view this website correctly. Update my browser now. The problem gets even hairier when multichannel in a surround setup enters the equation. The key to this dilemma lies in the phase relationship of subwoofer to main speakers at the crossover frequency. Genelec has addressed this problem to some extent with the bass management system in its LSE series of powered subwoofers.
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