Audimax Micro AMT (with 90 Hz high pass filter) is a two way compact speaker.
Audimax Micro AMT (with 90 Hz high pass filter) is a closed-cabinet loudspeaker with drivers of Mundorf and SEAS.
The kit is delivered with the following drivers:
- a Mundorf AMTU60W1.1-C air motion transformer (ribbon-tweeter)
- a Hobby-HiFi 18MW12T (von SEAS produziert) woofer
The loudspeaker has been developed by Bernd Timmermanns.
The crossover consists of:
- a 3rd order high-pass filter (18 dB per octave slope) for the tweeter.
- a band pass consisting of a 2nd order high pass filter (12 dB per octave slope) and a 3rd order low-pass filter (18 dB per octave slope) for the mids-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 medium volume, i.e. 90 dB at 1 m, the nonlinear distortions are below 0,33% above 200 Hz.
the crossover components (right),
to be mounted on a small wooden board.
Kit without cabinet, price per speaker EUR 1086,00 excl. VAT: € 912.61 / $ 958.24
Price for a pair of custom speakers of any color - not available (_)
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 capacitors for the Mundorf AMTU60W1.1-C are of type polypropylen (MKP) Mundorf MCAP EVO Silber Gold Öl 450 V.
Kit with high-end-crossover without cabinet, price per speaker EUR 1334,00 excl. VAT: € 1121.01 / $ 1177.06
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).
Price per impedance correction for one speaker, to be mounted on a small wooden board. EUR 31,30 excl. VAT: € 26.30 / $ 27.62
If you prefer to mount the crossover components on a 240 x 165 mm universal PCB instead on wood:
Universal PCB RA240, order no.. str-RA240, price per unit: EUR 8,60 excl. VAT: € 7.23 / $ 7.59
We recommend one board per kit (two boards for a speaker pair)
Hobby HiFi Overview