Scan Speak Silenos floorstanding loudspeakers from K+T magazine 1/2019

Kit without housing price per speaker

Silenos is a three-way floor-standing loudspeaker. Silenos is a bass reflex loudspeaker with a Scan-Speak chassis. The loudspeaker contains the following loudspeaker chassis: - a Scan-Speak R2604/832000 tweeter - a Scan-Speak 12W-4524G00 midrange speaker - a Scan-Speak 22W-4534G00 woofer The loudspeaker was developed by Gerd Lommersum and Dennis Frank. The crossover consists of: - a 3rd order high pass (18 dB / octave) for the tweeter. - a band pass consisting of a 2nd order high pass (12 dB / octave) and a 3rd order low pass (18 dB / octave) for the mid-bass loudspeaker. - a 2nd order low pass (12 dB / octave) for the woofer. The kit comes with a circuit board specially milled for the Silenos, which makes setting up the crossover very easy. The frequency response of the loudspeaker is perfectly linear. The decay spectrum is almost flawless: it is flawless above 1 kHz. The non-linear distortions at low volumes (85 dB, 1 m) are below 0.5% above 200 Hz and remain below 1.3% in the audible range even at higher levels (95 dB, 1 m). Above 200 Hz they even remain below 0.15% at 85 dB/1m - that is absolutely top class

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Technical data:

• Impedance: 4 Ohm
• Sound pressure level (2.83V/1m): 88 dB
• Dimensions (HxWxD): 1090 x 262 x 300 mm
• Frequency range (-8dB): 31 - 23000 Hz
• Crossover frequency(s): 200, 2150 Hz
• Principle: bass reflex box

Highlights

• ScanSpeak ring radiator R2604/832000
• ScanSpeak Mid 12W-4524G00
• ScanSpeak subwoofer 22W-4534G00
• 2x bass reflex tube HP70 XL, 70x220 mm, black
• 0.5x insulation fleece MT Bondum 800 (30 x 50 x 2 cm)
• 0.5x PE foam sealing strip, 5x2 mm, roll 7.5 m
• 2x insulation material Sonofil 100 x 35 cm for 20 liters
• Pole terminals PK31, one pair, gold-plated, red+black
• 3m speaker cable 2x1.5 mm2, transparent
• 2x pan screws 4x20 black, 8 pieces
• Printed circuit board for Silenos kit
• Construction plan for the kit the crossover components (right), to be assembled on a small wooden board.
• Audaphon MKP CAP Superior 10 μF / 400 Vdc
• 2x Audaphon MKP CAP Superior 22 μF / 400 Vdc
• 2x Audaphon MKT capacitor 10 μF / 160 Vdc
• Electrolytic capacitor rough, 150 μF/63 Vdc
• Electrolytic capacitor rough, 330 μF/63 Vdc
• Electrolytic capacitor smooth, 100uF / 50 Vdc
• 1.0 mm air coil, 0.22 mH/0.21 Ohm
• 1.0 mm air coil, 0.68 mH/0.39 Ohm
• 0.7 mm air coil, 0.27 mH/0.44 Ohm
• Audaphon M-core coil M14, 4.7 mH/0.24 0hm
• Mundorf H-core coil H71, 2.2 mH/0.38 0hm
• Mundorf H-core coil H71, 22 mH/1.49 0hm
• Ceramic resistor 1.5 Ohm/20 Watt
• Ceramic resistor 3.9 Ohm/20 Watt
• Metal oxide resistor MOX10 0.68 Ohm 5% (blue-gray-silver)
• Metal oxide resistor MOX10 1.5 Ohm (brown-green-gold)