Mini-Monitor Advanced is a two way compact speaker.
Mini-Monitor Advanced is a bass-reflex cabinet loudspeaker with drivers of Visaton and SB Acoustics.
The kit is delivered with the following drivers:
- a SB Acoustics SB21RDC-C000-4 tweeter
- a Visaton AL 130 midrange / bass driver
The loudspeaker has been developed by Bernd Timmermanns.
The crossover consists of:
- a 2nd order high-pass filter (12 dB per octave slope) for the tweeter.
- a 2nd order low-pass filter (12 dB per octave slope) for the woofer.
The frequency response of this speaker is nearly linear. The decay spectrum as shown in the waterfall diagram is exemplary, free of any disturbing resonance. At 90 dB and 1 m, nonlinear distortions are below 1% almost everywhere above 200 Hz.
the crossover components (right),
to be mounted on a small wooden board.
Kit without cabinet, price per speaker EUR 218,00 excl. VAT: € 183.19 / $ 216.17
The high-end kit is delivered with baked varnish air core coils on important parts of the crossover for minimizing microphonic effects. - The current flow through the coil creates a magnetic field which sets the reel of wire in motion. This motion induces a voltage in the coil which adds itself to the signal. The stiffer the reel of wire is, the less the signal will be altered. The capacitor for the tweeter is of type polypropylen (MKP) Clarity-Cap CSA 630 V.
Kit with high-end-crossover without cabinet, price per speaker EUR 248,00 excl. VAT: € 208.40 / $ 245.92
If you want to use a valve amplifier with this speaker an impedance correction should be employed. In this case the component quality is less important; therefore, we offer only one kit (upon request higher quality components are available).
If you prefer to mount the crossover components on a 140 x 102 mm universal PCB instead on wood:
Universal PCB RA140, order no.. str-RA140, price per unit: EUR 4,20 excl. VAT: € 3.53 / $ 4.16
We recommend one board per kit (two boards for a speaker pair)
Hobby HiFi Overview