Audimax Bookshelf RD is a two way compact speaker.
Audimax Bookshelf RD is a bass-reflex cabinet loudspeaker with drivers of SB Acoustics and Hobby HiFi (Made by SEAS).
The kit is delivered with the following drivers:
- a SB Acoustics TW29R tweeter
- a Hobby-HiFi 18MW12T (Made by SEAS) 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 is perfect.
At medium volume, i.e. 90 dB at 1 m, the nonlinear distortions are below 1% above 100 Hz.
the crossover components (right),
to be mounted on a small wooden board.
Kit without cabinet, price per speaker EUR 899,00 excl. VAT: € 755.46 / $ 808.34
The high-end kit is delivered with baked varnish air core coils or copper foil 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 SB Acoustics TW29R are of type polypropylen (MKP) Clarity-Cap CSA 630V.
Kit with high-end-crossover without cabinet, price per speaker EUR 1029,00 excl. VAT: € 864.71 / $ 925.24
We also offer the Audimax Bookshelf RD kit with three different alternative tweeters suggested in Hobby HiFi. The quality of the crossover parts is in all kits the same like the RD version. Only the crossover values in the kit with the Wavecor TW030WA10 are a little different.
Kit with SB Acoustics SATORI TW29B (Beryllium) without cabinet, price per speaker EUR 1099,00 excl. VAT: € 923.53 / $ 988.18
Kit with SB Acoustics SATORI TW29B (Beryllium) with high-end-crossover without cabinet, price per speaker EUR 1229,00 excl. VAT: € 1032.77 / $ 1105.07
Kit with Scan Speak D3004/662000 without cabinet, price per speaker EUR 974,00 excl. VAT: € 818.49 / $ 875.78
Kit with Scan Speak D3004/662000 with high-end-crossover without cabinet, price per speaker EUR 1104,00 excl. VAT: € 927.73 / $ 992.67
Kit with Wavecor TW030WA10 without cabinet, price per speaker EUR 861,00 excl. VAT: € 723.53 / $ 774.18
Kit with Wavecor TW030WA10 with high-end-crossover without cabinet, price per speaker EUR 987,00 excl. VAT: € 829.41 / $ 887.47
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 159 x 127 mm universal PCB instead on wood:
Universal PCB RA160, order no.. str-RA160, price per unit: EUR 5,90 excl. VAT: € 4.96 / $ 5.31
We recommend two boards per kit (four boards for a speaker pair)
Hobby HiFi Overview