Scan Speak CT 304 floorstanding loudspeaker from K+T magazine 4/2019

Kit without housing price per speaker

CT 304 is a two-way floorstanding loudspeaker. CT 304 is a bass reflex loudspeaker with chassis from Scan Speak and Visaton. The loudspeaker contains the following loudspeaker chassis: - a Scan Speak H2606-92000 tweeter - a Visaton W 130 S 8 Ohm mid-woofer - a Visaton W 130 S 8 Ohm woofer The loudspeaker was developed by Thomas Schmidt. The crossover consists of: - a 2nd order high pass (12 dB / octave) for the tweeter. - a 2nd order low pass (12 dB / octave) for the mid-woofer. - a 2nd order low pass (12 dB / octave) for the woofer. The frequency response of the loudspeaker is balanced. The decay spectrum is almost flawless. The nonlinear distortions at low volumes (85 dB, 1 m) are below 0.7% above 200 Hz and remain below 1% in the audible range even at higher levels (95 dB, 1 m).

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Technical data:

• Impedance: 4 Ohm
• Sound pressure level (2.83V/1m): 88 dB
• Dimensions (HxWxD): 1000 x 180 x 258 mm
• Frequency range (-8dB): 45 - 21000 Hz
• Crossover frequency(s): 180, 1800 Hz
• Principle: bass reflex box

Highlights

• ScanSpeak tweeter H2606-920000
• 2x Visaton W130 S, 8 Ohm
• Bass reflex tube HP70 XL, 70x220 mm, black
• 2x Sonofil insulation material 100 x 35 cm for 20 liters
• 0.5x N25 foam panels 100x50x4cm anthracite/black
• Pole terminals PK31, one pair, gold-plated, red+black
• 3m speaker cable 2x1.5 mm2, transparent
• 0.5x pan screws 3.5x17 black, 8 pieces 1.5x
• Visaton countersunk screws 3.5x25, 8 pieces
• Construction plan for the kit the crossover components (right), to be assembled on a wooden board.
• Audaphon MKP CAP Superior 1.0 μF / 400 Vdc
• Audaphon MKP CAP Superior 4.7 μF / 400 Vdc
• Audaphon MKT capacitor 15 μF / 160 Vdc
• Audaphon MKT capacitor 33 μF / 160 Vdc
• Elko rough, 220 μF/63 Vdc
• 1.0 mm air coil, 1.0 mH/0.49 Ohm
• 0.7 mm air coil, 0.39 mH/0.49 Ohm
• Mundorf H-core coil H71, 10 mH/0.87 0hm
• Mundorf H-core coil H100, 6.8 mH/0.46 0hm
• Ceramic resistor 4.7 Ohm/20 Watt
• Metal oxide resistor MOX10 2.2 Ohm (red-red-gold)
• Metal oxide resistor MOX10 8.2 Ohm (grey-red-gold)