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SPL Sound Performance Lab Phonos
RIAA Phono Preamplifier


SPL Phonos is a preamplifier for record players using either moving magnet (MM) or moving coil (MC) cartridges.
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SPL Sound Performance Lab Phonos
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SPL Phonos is a preamplifier for record players using either moving magnet (MM) or moving coil (MC) cartridges. The equalization curve is according to RIAA and suitable for all vinyl records since 1954. The RIAA filter is designed after Douglas Self. With up to 71.5 dB gain for MC cartridges and 50 dB gain for MM cartridges Phonos belongs to the most powerful phono preamplifiers.

SPL Phonos Features:

  • 120 V rail phono preamplifier for record players
  • RIAA equalization (after Douglas Self)
  • Suitable for MM (Moving Magnet) and MC (Moving Coil)cartridges
  • Max. preamplification: 50dB (MM); 71.5dB (MC)
  • Capacitances for MM: Off, 150 pF, 220 pF and 330 pF
  • Impedances for MC: 100, 220, 470; 2k2, 4k7 and 10kohms
  • Styroflex condensers used throughout the RIAAequalizer
  • Switchable Gain: Normal, -10 dB, +4 dB
  • Gold-plated RCA in- and outputs
  • Audio ground connection for record player
  • Switchable rumble filter (Subsonic)
  • Standby/power on switch
  • Linear power supply with toroidal transformer
  • Front and Lid made from aluminum, housing made fromsheet metal
  • Made in Germany

SPL Phonos Specifications:

  • Inputs and Outputs
    • RCA, unbalanced, gold-plated
    • Input impedance (MM): 47 kohms
    • Input impedance (MC): switchable
    • Output impedance: < 5 ohms
    • Crosstalk: -80dB (at 1 kHz)
  • Filter: RIAA equalizer (after Douglas Self)
  • Moving Magnet (MM) preamplifier
    • Amplification: 46 dB (Norm.), 36 dB (-10 dB), 50 dB (+4 dB)
    • Switchable capacitance: Off, 150 pF, 220 pF and 330 pF
    • Noise (A-weighted): -85,3 dB
  • Internal Operating Voltage: +/- 60 V
  • Power Supply
    • Mains voltage (switchable): 230 V AC / 50 Hz or 115 V AC / 60 Hz
    • Fuses: 230 V: T 500 mA; 115 V: T 1 A
    • Power consumption: max. 30 VA
    • Stand-by power consumption: 0.7 W
  • Dimensions (incl. feet) (W x H x D): 10.95 x 2.24 x13" (278 x 57 x 330 mm)
  • Weight
    • 3.2 kg; 7.05 lbs (unit only)
    • 4.3 kg; 9.5 lbs (shipping)

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