ON ORDER. DELIVERY TIME APPROXIMATELY 8 WEEKS AFTER PLACING THE ORDER.

WE RECOMMEND ORDERING BY MAIL (YOU ARE GUIDED BY THE ONLINE STORE).

The preamplifier AA 1P AT combined with active speakers system (like AA O 103 SL or AA O105 SL) offers a great minimalist aesthetic audio solution for all music lovers and vacuum tubes sound lovers.

Highlights

• Vacuum tubes line preamplifier with two double triodes. As an option, with additional two low noise double triodes, it can be upgraded with Phono RIAA moving magnet preamplifier.
• Special low voltage vacuum tube circuits for tubes life extension.
• AA 1P AT Headphone/Preamplifier provides single ended RCA and balanced inputs; phones output and single ended RCA as balanced outputs.
• All the switching functionality in the preamplifier is managed with hermetically closed signal relays with Au/Ag contacts.
• The volume control is realized with Bourns or Alps potentiometer to maximize balanced volume tracking.
• Mains power supply consists of external unit that is adapted to different mains supply voltage 110V or 240V AC 50/60 Hz.
• Inputs are selected with a three position toggle switch. All control logic signals are electrically isolated from the rest of analog circuits.
• Enclosure is made of polished stainless steel and 3 mm anodized aluminum sheets. The inscriptions are laser engraved.
• The remote IR control unit (as option) consists of a microcontroller that with a separated power supply. With this approach all the induced noises are maximally reduced. The volume regulation is controlled by a motor attached to a stereo potentiometer.
• As an option the unit offers also a Phono RIAA input for moving magnet. The module is realized with two double low noise triodes. High grade capacitors and precision resistors are used.

SPECIFICATIONS

• INPUTS

  1x balanced XLR
  2x differential RCA (optional Phono input)
• OUTPUT

  1x balanced XLR
  1x single ended RCA
  1x phones TRS 32 to 600 OhmAT version 300 – 600 Ohm
• GAIN

  Active volume control, gain up to 15 dB
• OUTPUT VOLTAGE

  5,4 Vpp @ 32 OhmAT version 5 Vpp @ 600 Ohm

• FREQUENCY RESPONSE

  5 Hz — 120 kHz +/- 0.5 dB @ 600/32 ohm load
• VACCUM TUBES

  Only AT version: 2x or 4x 6922 (E88CC)
• DIMENSIONS

  348 x 220 x 50 mm
• WEIGHT

  2 Kg
• FINISH

  Satin Natural/Black anodized aluminum, Stainless Steel