Capella Plus with Mivoc drivers as in Hobby HiFi 3/07

Capella Plus aus Hobby HiFi 3/2007
Technical data:
- size (HxWxD): 100 x 24 x 35 cm
- impedance: 6 Ohm
- sensitivity: 85 dB
- frequency range (-3dB): 30 - 23000 Hz
- crossover frequencies: 110, 2600 Hz
- speaker type: bass reflex cabinet
Employing a Mivoc high frequency horn XGH 258 Alu and bass / midrange driver XAW 180 HC Bernd Timmermanns designed an impressive 2 way floorstanding speaker at a reasonable price: the Capella.

The idea was to integrate a subwoofer into the Capella. Powerful bass is achieved by using a bass reflex cabinet. In this case a bass reflex channel consisting of rectangular boards is fitted at the rear panel. That's Capella Plus.

The side-mounted Mivoc AWM 104 is driven by a Mivoc AM 80 amplifier module.

Excerpt of the review in Hobby HiFi 3/2007:
"The powerful sound by the Capella Plus is first-class. . The clear and beautifully balanced sound reproduction is supported by an almost endless yet bone dry bass. Already at lower levels this bass is exceptionally clear and reveals even the smallest details. The picture doesn't change much with increasing volume: the music stays in balance without even a touch of harshness or strain. This impression remains up to the dynamics limit occurring at a volume far beyond normal listening levels. The Capella Plus isn't shy to go any length if required by the music material: "The Cost Of Freedom" by Marla Glen is reproduced with delightfully rich bass of terrific depth. And when the Takeshi Inomata Trio intones their jazz version of the Police classic "Walking On The Moon" with massive use of percussion it seems almost like brute force. The exquisite detachment of the music from the loudspeakers is demonstrated by Vivaldi's "Four Seasons" performed by Senatori De la Gioiosa Marca. The soloists can be located with extreme ease; they make the air vibrate and are almost three-dimensional in appearance. The stage extends from far behind the speakers to clearly before the base line, with a width that stretches out beyond the physical location of the speakers. It's really a lot of fun to listen to music with the Capella Plus." ...

Our kit consists of:

- Mivoc XGH 258 Alu tweeter
- XAW 180 HC bass driver
- Mivoc AWM 104 subwoofer
- Mivoc AM 80 amplifier module
- 2 metres cable 2x1.5 mm2
- 2 gold plated brass binding posts
- 2 packs polyester fleece
- 0.5 self-adhesive sealing tape
- 18 x screws PAN 4x20
- 8 x Allen screws 5x30 mm
- building instruction
 
- the crossover components to be mounted on wood:
- 1.2 mH air core coil / 1.0 mm
- 6.8 mH powder core coil (IT 0972)
- 0.22 mH air core coil / 0.7 mm
- 0.33 mH air core coil / 0,7 mm
- 1.5 mH ferrite core coil <0.8 Ohm
- 150 uF ELCO, etched
- 4.7 uF ELCO, non-etched
- 4.7 uF MKP capacitor/400 V *)
- 1.2 uF MKP capacitor (1.0+0.22 in parallel) *)
- 2.2 Ohm MOX4 resistor (red-red-gold)
- 2x 4.7 Ohm MOX4 resistor (yellow-purple-gold)
- 3.3 Ohm MOX4 resistor (orange-orange-gold)

*) at critical places - like the path to the tweeter - we have replaced the standard components recommended by Hobby HiFi with higher quality ones.

Price Capella Plus without cabinet per unit: EUR 256,00

Upon request a 220 x 155 mm universal PCB is available for mounting the crossover components.
Price for PCB EUR 8,80

Capella Plus with higher quality crossover: medium end

We also recommend a further improvement to the crossover. The standard kit by Hobby HiFi includes an ELCO, etched with 150 uF in the path to the bass driver.

This ELCO should be replaced with two capacitors in parallel, namely:
- 100 uF ELCO etched in parallel to
- 47 uF MKP capacitor/400V

Price Capella Plus, medium without cabinet per unit: EUR 275,00

Upon request a 220 x 155 mm universal PCB is available for mounting the crossover components.
Price for PCB EUR 8,80

Capella Plus with high-end crossover

If you wish to use an absolute to crossover, we recommend the following components:
- crossover components to be mounted on wood:
- 1.2 mH Mundorf backed varnish air core coil / 1,0 mm
- 0.22 mH Mundorf backed varnish air core coil / 0,7 mm
- 0.33 mH Mundorf backed varnish air core coil / 0,7 mm
- 1.5 mH Mundorf backed varnish air core coil / 1 mm
- 6.8 mH powder core coil (IT 0972)

- 150 uF consisting of: 100 uF ELCO non-etched
    and 47 uF MKP in parallel

- 2x 4.7 uF MKP capacitors/400 V
- 1.2 uF MKP capacitor (1.0+0.22 in parallel)
- 2.2 Ohm MOX4 resistor (red-red-gold)
- 2x 4.7 Ohm MOX4 resistors (yellow-purple-gold)
- 3.3 Ohm MOX4 resistor (orange-orange-gold)

price Capella Plus, high-end without cabinet per unit: EUR 284,00

Upon request a 220 x 155 mm universal PCB is available for mounting the crossover components.
Price for PCB EUR 8,80

Impedance correction

If you are using a valve amp you need an impedance correction, already included with our high-end kit. The impedance correction contains
- one 6.8 Ohm ceramic resistor with 20W,
- one 33 uF ELCO non-etched and
- one 0.33 mH air core coil with 0.7 mm wire.

Price Capella Plus impedance correction per unit: EUR 8,30

Higher quality components are available but not necessary.

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