KX-5 Twenty : preamplifier
Specifications

Maximum Input Level
8 V rms – unbalanced inputs
16 V rms – balanced inputs

Gain
Gain Variable to match the required output level of the system without the need for attenuation.

Input Impedance
1 MΩ unbalanced inputs
2 MΩ balanced inputs (1 MΩ per phase)

XLR Input Polarity
Pin 1 = Ground
Pin 2 = Non-inverting (Positive)
Pin 3 = Inverting (Negative)

Frequency Response
DC - 250 kHz

Power Consumption
40 watts in operating mode
60 watts in operating mode (volume control active)

Dimensions
17.25" W x 13.25" D x 3.75" H
(44cm x 34cm x 10cm)

Weight
23 pounds (10.5 kg)

Features
  • Ayre’s Diamond output stage
  • Variable Gain Transimpedance (VGT) volume circuit
  • Ayre’s exclusive Equilock circuit
  • 46 step volume control, each of 1.5 dB
  • Linear analog power supply
  • zero-feedback, fully-balanced discrete circuitry
  • High-speed circuit board material
  • Input ground switching for true source isolation
  • Six inputs: four balanced, two single-ended
  • Ayre Conditioner power line RFI filter
  • AyreLink communication system