Celestion Cinco floorstanding loudspeakers from K+T magazine 3/2017

Kit without housing, price per speaker

Cinco is a 3-way high-end floor-standing loudspeaker with a coaxial midrange tweeter. The loudspeaker consists of a Celestion FTX0820 coaxial loudspeaker for the midrange and tweeter range. The bass range is handled by 4 Celestion FTR08-2011D woofers in a bass reflex housing. The crossover consists of a 3rd order high-pass filter (18 dB / octave) for the tweeter, a bandpass consisting of a 2nd order high-pass and low-pass filter with a voltage divider for the midrange speaker and a 2nd order low-pass filter with an absorption circuit to smooth out the impedance peak for the four woofers. The frequency response of the loudspeaker box is very balanced between 50 Hz and 10,000 Hz. The decay spectrum is very fast and almost error-free. The non-linear distortions at low volumes (85 dB, 1m) are below 1.5% above 500 Hz.

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Technical data:

• Impedance: 8 Ohm
• Sound pressure level (2.83V/1m): 88 dB
• Dimensions (HxWxD): 1098 x 250 x 390 mm
• Frequency range (-8dB): 40 - 21000 Hz
• Crossover frequency(s): 280, 2000 Hz
• Principle: bass reflex box

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• Celestion FTX0820 (coaxial), 8 Ohm
• 4x Celestion FTR08-2011D, 92dB, 70Hz-6kHz
• 3x insulation fleece MT Bondum 800 (30 x 50 x 2 cm)
• PE foam sealing strip, 5x2 mm, roll 7.5 m
• 3x insulation material Sonofil 100 x 35 cm for 20 liters
• Pole terminals PK31, one pair, gold-plated, red+black
• 5m speaker cable 2x1.5 mm2 black/red
• 5x Allen wood screws 5x30mm, black 8 pieces
• Construction plan for the kit the crossover components (right), to be assembled on a wooden board.
• Audaphon MKP CAP Superior 1.5 μF / 400 Vdc
• Audaphon MKP CAP Superior 6.8 μF / 400 Vdc
• Audaphon MKT capacitor 1.5 μF / 160 Vdc
• Audaphon MKT capacitor 8.2 μF / 160 Vdc
• Audaphon MKT capacitor 100 μF / 160 Vdc
• Electrolytic capacitor smooth, 68uF / 50 Vdc
• Electrolytic capacitor smooth, 82uF / 50 Vdc
• 1.0 mm air coil, 0.68 mH/0.39 Ohm
• 1.4 mm air coil, 1.0 mH/0.29 Ohm
• 0.7 mm air coil, 0.068 mH
• Mundorf BS140 core coil 15mH/0.48Ohm
• Mundorf H core coil H100, 6.8 mH/0.46 0hm
• Mundorf H-core coil H100, 15 mH/0.83 0hm
• 4x ceramic resistor 6.8 Ohm/20 Watt
• Ceramic resistor 10 Ohm/20 Watt
• 3x ceramic resistor 15 Ohm/20 Watt
• 2x ceramic resistor 22 Ohm/20 Watt