SPL Grapevine Headamp 4 specifications

Category : Headphone amplifier

Brand : SPL

Model: Grapevine Headamp 4

Other models of the same series:

• Power supply: Block transformer with 5 VA
• Frequency response: 10 Hz-200 kHz (-0.5 dB)
• THD+N Ratio: > 95
• Noise: > 90 dBu
• Common mode rejection (CMRR): > 80 dB
• Output resistance: 10 ohm
• Fuse: 63 mAT
• Inputs:
  • Balanced jacks
  • Input level: +21.2 dBu (input -12 dB)
  < li>Input Impedance: 10 kOhm
• Output Impedance: 10.5ohm
• Output Voltage:
  • 600 ohm/7.4V eff
  • 300 ohm/7.1V eff
  • 150 ohm/6.6V eff
  • 50 ohm/5.3V eff
• Can also be used as an active line level distributor Design features
• Internal power supply with cold device connector for secure mains connection
• discretely constructed Class A headphone output stages
• Potentiometer and switches from ALPS
• Special features:
  • Second, rear-side socket pair for looping through another HeadAmp 4
  • Output modes: Stereo, left only, right only and mono
  • Input sensitivity switchable
  • Also suitable for the operation of low-impedance headphones
  • Also processes high input levels, e.g. from other headphone outputs
• Weight: 1.85kg

• Balanced jack sockets< /li>
• Input level: +21.2 dBu (input -12 dB)
• Input impedance: 10 kOhm

• 600 ohm/7.4V eff
• 300 ohm/7.1V eff
• 150 ohm/6.6V eff
• 50 ohm/5.3V eff

• Second, rear-side socket pair for looping through another HeadAmp 4
• Output modes: Stereo, left only, right only and mono
• Input sensitivity switchable
• Also suitable for the operation of low-impedance headphones
• Also processes high input levels, e.g. from other headphone outputs

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SPL Grapevine Headamp 4 relate

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