What kind of amplifier serves what purpose? We enlighten you with our models.
EDP series:
The low-weight EDP series with switch mode power supply is designed for average PA requirements. It boasts optimal space-saving installation dimensions, most suitable for bars, music pubs, restaurants and as expansion of existing systems and for compact mobile systems. Read more »
In 2009, the power amplifiers of the SMA series by Omnitronic had to manage the difficult task to replace their very successful predecessors after almost ten years. The new models now had to pass the testing procedures of the technical press.
Uli Hoppert’s test report in the magazine “Soundcheck” is headlined “easy play” as an allusion to the low weight of the power amplifiers. Due to the switch-mode power supply, even the large models SMA-1500 and SMA-2000 stay below 10 kg without cutting back on protective circuits or performance. Moreover, he emphasized that the test data has met the specified performance data reliably and that the protective circuits have proven to be safe. This is also approved by few customer complaints in the first year after the series’ market introduction.
In his report for the magazine “tools4music”, tester Stefan Kosmalla praised the remarkable quality of the switch-mode power supplies and the clear and thought-out design of the power amplifiers. Besides, there was also praise for the light weight and the low stand-by power consumption. All the performance data reached in the test exceeded the manufacturer’s data. Compared to three even more powerful competitors, the SMA-1500 was performing well.
Omnitronic’s SMA series benefits from the development of the switching power supply technology, which is meanwhile also affordable for beginners and ambitious hobbyists. This technology makes it not only possible to produce power amplifiers with low weight but also protects the environment: A significantly higher efficiency of the switch-mode power supplies compared to conventional toroidal transformers, reduces the power dissipation. The top models SMA-1500 and SMA-2000 can minimize the power dissipation even more, because of a staged supply voltage (Class H circuitry).
The new Omnitronic SMA series is perfect for mobile DJs or musicians – for every purpose, where light weight, high reliability and low heat emissions play an important role. Moreover, the power amplifiers are also suitable for fixed installations and other sophisticated soundings with limited budget.
The SMA series is available in four different power categories. The power amplifiers have a total weight between 5 and 9 kg and provide a nominal power from 600 to 2000 watts.
OMNITRONIC SMA-1500 Amplifier 2x750W/4 ohm
User manual SMA-1500 (PDF)
OMNITRONIC SMA-2000 Amplifier 2x1000W/4ohm
>User manual SMA-2000 (PDF)
In Germany, the organisational and legal legislation has changed a lot during the past 10 years. The staff’s qualification in the entertainment industry was completely restructed so that every event must have its own responsible person.
In 1998 and 2007, the guideline for noise protection and the DIN-standard 15905-5 came into force, respectively. Every staff with a social security card is now to be protected against excessive noise by the BGV B3 guideline. The Association of German Discotheques (BDT e.V.) has been training DJs since 2004 in order to sensitize and educate DJs in respect to dealing with loud music and ear damage. Successfull participants can boast with a DJ licence.
These changes are meant to have events carried out and monitored by qualified staff so that neighbours, audience and employed staff will no longer be exposed to excessive noise. This sounds easy in theory, but in not so easily carried out in reality.
It is true that digital loudspeaker controllers like OMNITRONIC’s DXO-series can limit the maximum signal level effectively and protect the settings via password. Furthermore, cost-effective, portable sound-level-meters like the OMNITRONIC SLM-700 can monitor and even record the sound pressure level at the venue and in the neigbourhood. Nevertheless, these measure make sense for individual events or a number of single events, but the authorities do no longer accept such practice in discotheques or other venues with regular events and permantently installed sound equipment. Such locations require highly effective level limits which can be sealed by the authorities.
One solution will be offered by OMNITRONIC’s SPL-1: this system provides a little controller with limiter to be installed between audio mixer and controller or amplifier, respectively. The controller will be connected with a measuring microphone in order to measure the real sound pressure level at the venue. On the frontpanel, the maximum signal level and the operational modes can be adjusted under a sealable cover. Two different “traffic lights” are available for rack installation and wall installation in oder to indicate a too high sound pressure level to the operators and technicians. If the given sound pressure level is exceeded for a longer period of time, the signal will be cut until the input level will be reduced. All connections are installed in a second housing chamber in order to avoid sabotage. If the microphone cable will be cut, the audio signal will immediately be cut.
