The tendency in the development of the power generators is centring in achieving that the audible level was every time lower. In this line of products with cabin insonorizada, Ayerbe has gone evolving in the last years achieving reduce of important way the audible level and the acoustic power, taking into account that a reduction of 2 or 3 dB supposes an important technical advance.
In this line of products, has begun to work in groups of inferior power to 10 kVA and in 3.000 rpm, so much in diesel as in petrol. Historically, these models have been in hands of the Japanese producers.