0 sound easily matt / verschnupft
0 when sine bass tones clearly audible
Flow noise from the bass reflex tube
even at low volume
My personal sound ideal is a balanced frequency response and a very clear, transparent reproduction, but without any sharpness. The offer, for example, my 20 years old, standing speakers T + A Stratos P30 or studio headphones AKG K271, but also the active speakers my little jazz singing plant, two SR-Technology Club 60 / A.
The NuPro 20A are certainly very good powered speakers, but considering the aforementioned sound ideal, I found it quite easy to matt and peeved, not as open as I like it. Since then affects the wonderful "wood" sound of the jazz guitar of Joe Pass in "Once I Loved" or "Take Love Easy", both as a duo with Ella Fitzgerald, easy topfig, and also Fitzgeralds voice is easily proven. Maybe this will change when the boxes are imported very long; But such changes are difficult to predict. Therefore I have decided against these boxes.
It should be mentioned even the low end. The woofer has the technical specifications, a diameter of 150 mm. This is a very "generous" indication; it relates to the entire Chasis including the externally visible mounting ring. The actual membrane inlusive rubber surround has a diameter of only about 116 mm. Tones with pure sine wave (-Mess) was at about 37 Hz clearly a level-maximum to hear (resonant frequency), and also at various installation positions. In the range of about 50-65 Hz, there was an audible level sink. In the range of about 35-75 Hz very significant flow noise (= noise) from the rear bass reflex tube could be heard, with an increasing level getting stronger. In the music business I have this but practically not noticed. So I could at strong contra-F (approximately 44 Hz) not even directly perceive the electric bass in Average Whites "Pick up the Pieces" also above Zimerlautstärke on reflex tube noise.