TALISMAN DAC

The amplifier is based entirely on transistors in MOSFET and jFET technology together with a digital-to-analog converter in one housing. Author's design.

DAC type R2R, analog volume control, non-invasive, parallel to the signal path. Overcurrent protection that detects excessive current consumption of the final stage and turns off the amplifier, the operation of this protection eliminates the fuses. The audio signal from the analog amplifier input to the speaker terminals is balanced, with no ground. Silver-copper internal wiring. One pair of power Mosfet transistors per channel in SOT 227 packages. The amplification path consists of an input stage, a current follower and a power stage, all on single-polarity NPN transistors.

The DAC R2R chip used only decodes DSD signals, so all incoming signals from digital inputs are converted to DSD.

Important features:

  • Five digital inputs
  • Housing made of 10 mm thick anodized aluminum plates supported on three rubber feet, one of the feet centrally supports mains transformers
  • Aluminum remote control with 48-step volume control, channel-by-channel balance control, digital input selector and mute
  • The amplifier has two displays: for the DAC section and volume control

Specifications:

  • Frequency response: 10 - 30.000 Hz
  • Output Power: 100 W (8 Ohm), 130 W (4 Ohm)
  • Load impedance: 4 Ohm
  • Idle power consumption: 130 W
  • Weight: 50 kg
  • Dimensions: 22 x 44 x 55 cm (height x width x depth)

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PRIMUS OTL (unavailable)

Without transformer speaker amplifier in push-pull configuration, with automatic pairing of the tail lamp without evaporation lamps. It has two gain stages: voltage (tubes 6N6) and current (tybes 6C33C) and minimal signal path with the position lamp voltage level at the input terminals. The quiescent current output tubes set manually according to the indications meters - ammeters.

Important features:

  • Work in a fully symmetric
  • Automatic matching tail lamp
  • Changing the volume and balance, also a remote control
  • Input: XLR or RCA (switching remote control only)

Specifications:

  • Frequency response: 2 - 60.000 Hz
  • Load impedance: 8 Ohm
  • 6S33S power tubes, two per channel
  • Lamp voltage level 6N6, two per channel
  • Output Power: 2 x 24 W (8 Ohm), 2 x 36 W (16 Ohm)
  • Power consumption: 350 W
  • Housing made ​​of polished or brushed stainless steel
  • Weight: 24 kg
  • Dimensions: 36 x 44 x 25 cm

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