Harwood-Cinema Sat AM24 small is a two way compact speaker.
Harwood-Cinema Sat AM24 small is a closed-cabinet loudspeaker with drivers of Harwood .
The kit is delivered with the following drivers:
- a Harwood AM 24 air motion transformer (ribbon-tweeter)
- a Harwood TM 130/25F1 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 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 medium volume, i.e. 90 dB at 1 m, the nonlinear distortions are below 0,35% above 200 Hz.
the crossover components (right),
to be mounted on a small wooden board.
Kit without cabinet, price per speaker EUR 334,00 excl. VAT: € 280.67 / $ 280.67
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 Harwood AM 24 are of type polypropylen (MKP) Mundorf MCAP EVO Öl 450 V.
Kit with high-end-crossover without cabinet, price per speaker EUR 374,00 excl. VAT: € 314.29 / $ 314.29
Kit without cabinet, price per speaker EUR 20,30 excl. VAT: € 17.06 / $ 17.06
Additional filter-kit with high-end-crossover without cabinet, price per speaker EUR 33,60 excl. VAT: € 28.24 / $ 28.24
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 20,00 excl. VAT: € 16.81 / $ 16.81
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 / $ 3.53
We recommend one board per kit (two boards for a speaker pair)
Hobby HiFi Overview