monolit Solo 50 betonghögtalare – Prototyp par

Description

The Solo 50 is a fullrange floor-standing speaker for small to medium-sized rooms.

The B 200 – 6 Ohm was fitted in a narrow column speaker with a net volume of around 50 litres. Due to the high Q-factor, one would normally have a relatively strong increase in reverberation response at around 60 Hz in a normal enclosed chamber or bass reflex cabinet. To prevent this, and indeed to take full advantage of the bass reflex principle, we thought up this little arrangement which, to our knowledge, has not been done before.

The chamber is split into two equal parts by a separator. On the rear wall, we built a vertical tunnel as a Helmholtz resonator which was tuned exactly to the frequency of the increase. This tunnel was then loosely filled with a packing of wool. In its undamped state, this resonator absorbs just the amount of the increase and even causes a slight dip in this range. In this way, we managed to ensure that the bass reflex did not produce overpowering bass despite the bass reflex tuning.

In keeping with the frequency response so typical of wide-range speakers with increasing medium- and top-range frequencies, this speaker, too, has an unacceptably high-pitched sound. So we applied a passive correction circuit (five simple components) to smooth off the frequency response in a very simple but effective manner for a full-range loudspeaker.

The monolit Solo 50 has a correction circuit built with Mundorf High-End capacitors, coils and resistors, Mundorf pole-post and is coming with FPH dampers. All elements are new and unused.