Technical data
- impedance: 8 Ohm
- sensivity (2,83V/1m): 85 dB
- size (HxWxD): 360 x 180 x 270 mm
- frequency range (-8dB): 48 - 40000 Hz
- crossover frequency(s): 2000 Hz
- speaker type: bass reflex
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ScaMo 15 is a monitor with scan speak chassis. The woofer is a Scan Speak driver of the Discovery series.
Bernd Timmermanns used a simple housing for ScaMo 15 which is easy to rebuild. The crossover consists of a second-order high-pass filter and a second-order low-pass filter. A resistor in series to the tweeter adjusts the level of the tweeter to the level of the woofer. A resistor divider was not chosen because the tweeters 4 Ohms impedance should be adapted to 8 Ohms.
In Parallel to the resistor a small capacitor is used, which raises the highest frequencies, so that the speaker reaches almost 40 000 Hz in frequency response.
The frequency response of the speaker-system is very flat; the decay spectrum is excellent and the non-linear distortions remain almost consistently below 0.3% at 90 dB SPL. These are excellent characteristics.
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Our kit consists of
- ScanSpeak ring radiator R2604/832000
- ScanSpeak Woofer/midrange 15W-8434G00
- 0,5x Damping fleece MT Bondum 800 (30 x 50 x 2 cm)
- PE sealing tape, 5x2 mm
- 2x bass reflex tube HP50, 50x143mm, black
- 0.5x Damping Sonofil 100 x 35 cm for 20 litres
- Binding Post PK31, gold plated (one pair, red and black)
- 2m Speaker cable 2x1.5 mm2, transparent
- Pan screws 4x20 black, 12 pieces
- Plan for DIY kit
the crossover components (right),
to be mounted on a piece of wood
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- Audaphon MKP CAP Superior 0.68 μF / 400 Vdc
- Audaphon MKP CAP Superior 5.6 μF / 400 Vdc
- electrolytic capacitor, unetched, 10 μF / 70 Vdc
- Mundorf air core coil L71, 0.47 mH/0.57 Ohm
- Mundorf air core coil L140, 2.2 mH/0.46 Ohm
- Metal-oxide resistor, 5W 4.7 Ohm (yellow-violet-gold)
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Kit without cabinet, price per speaker
EUR 206,00 excl. VAT: € 173.11 / $ 188.69
Kit with high-end crossover
The kit with high-end crossover contains four Mundorf baked varnish air core coils and in series to the tweeter Mundorf MCAP EVO Oil capacitors.
- Mundorf MCAP EVO Oil 0.68 μF / 450 V
- Mundorf MCAP EVO Oil 5.6 μF / 450 V
- Mundorf MCAP 10 μF / 250 Vdc
- Mundorf baked varnish air core coil BL71, 0.47 mH/0.57 Ohm
- Mundorf baked varnish air core coil BL140, 2.2 mH/0.46 Ohm
- Metal-oxide resistor, 5W 4.7 Ohm (yellow-violet-gold)
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Kit with high-end-crossover without cabinet, price per speaker
EUR 251,00 excl. VAT: € 210.92 / $ 229.91
Kit with high-end crossover no 2
High-end crossover no.2 contains Rike Oil capacitors produced in Germany. In series to the woofer a Mundorf copper foil coil is used.
- Rike S-Cap 0.68 μF / 630 Vdc
- Rike copper polypropylen capacitor Q-Cap-PP 5,6 μF
- ClarityCap PWA capacitor 10 μF / 400 Vdc
- Mundorf copper foil coil CFC16-2.2mH/0.54Ohm
- Mundorf baked varnish air core coil BL71, 0.47 mH/0.57 Ohm
- Metal-oxide resistor, 5W 4.7 Ohm (yellow-violet-gold)
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Kit with high-end-crossover no.2 without cabinet, price per speaker
EUR 501,00 excl. VAT: € 421.01 / $ 458.90
Impedance correction
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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).
- Audaphon MKT CAP 22 μF / 160 Vdc
- Audaphon air core coil L7, 0.68 mH/0.70 Ohm
- 2x Metal-oxide resistor, 10W 3.9 Ohm (orange-white-gold)
Price per impedance correction for one speaker, to be mounted on a small wooden board.
EUR 14,60 excl. VAT: € 12.27 / $ 13.37
universal PCB
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 / $ 5.40
We recommend two boards per kit (four boards for a speaker pair)
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