RAAL requisite PDT-1a - tube headphone amplifier

RAAL requisite PDT-1a - tube headphone amplifier

CHF 2,199.00


Tube headphone amplifier for planar and dynamic driver headphones - not suitable for ribbon headphones.

RAAL-requisite's new standalone headphone amplifier, the PDA-1a, incorporates the technology of the groundbreaking HSA-1b and is a completely new amplifier for traditional non-electrostatic headphones. This premium amplifier delivers uncompromising performance for planar magnetic and dynamic headphones!

Technical data

  • LOAD IMPEDANCE: 0.03 ohms - infinity
    8-ohm 12W, 16-ohm 6W, 32-ohm 3W, 64-ohm 1.5W, 120-ohm 0.75W, 240-ohm 0.35W
  • FREQUENCY RESPONSE: 100mv/in/sin 15hz-500kHz
  • POWER BANDWIDTH: 100kHz (-3dB) at 1khz
  • DISPTION: <0.5% at 1khz
  • SIGNAL TO NOISE RATIO: Better than 90dB
  • MAXIMUM POWER CONSUMPTION: 150W, without signal 25W
  • DIMENSIONS: H3.54" x W8.58" x D12.6"
  • WEIGHT: approx. 5.5kg

Inputs and outputs

  • Load impedance: 0.3 ohms - infinity at the headphone outputs
  • INPUT 1- 2 RCA single connectors
  • INPUT 2 - 2 XLR 3-pin balanced (female)
  • 2 x XLR 4-pin socket (balanced headphone output Planar & Dynamic)
  • 2 x 6.3 mm stereo jack (one-sided planar and dynamic headphone output) for 20 - 600Ω
  • Input impedance: 40kΩ
  • Sensitivity: 0.5V /40kΩ
  • Operating voltage: 115V/230VAC (selector switch) or 100V (requires internal connection)

Scope of delivery

  • PDA-1a
  • IEC C13 power cord
  • 5 year manufacturer warranty