Double Three is a compact loudspeaker with a full range driver.
Double Three is a bass-reflex cabinet loudspeaker with drivers of Omnes Audio .
The kit is delivered with the following drivers:
- a Omnes Audio BB 3 AL full range driver
- a Omnes Audio BB 3 AL woofer
The loudspeaker has been developed by Thomas Schmidt and Holger Barske.
The crossover consists of:
- a first order low-pass filter (6 dB per octave slope) for the woofer.
- a wave trap (notch) circuit in series for the fullrange driver.
The frequency response of this speaker is nearly linear.
The decay spectrum is perfect.
At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 1% above 200 Hz and doesn't exceed 1,5% at 95 dB at 1 m between 300 and 15000 Hz.
the crossover components (right),
to be mounted on a small wooden board.
Kit without cabinet, price per speaker EUR 98,40 excl. VAT: € 82.69 / $ 97.57
Important: Additionally you need 25mm plastic tubes for the bassreflex system, it is not included in the kit.
The high-end kit is delivered with baked varnish air core coils 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 fullrange driver are of type polypropylen (MKP) Clarity-Cap ESA 250.
Kit with high-end-crossover without cabinet, price per speaker EUR 114,00 excl. VAT: € 95.80 / $ 113.04
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)