• Melpomene VAT913 2-channel Vacuum Tube Power Amplifier by GRA & AFCH
• It is a stereo Amplifier designed for home audio and home music systems that produces 5 Watts per channel
• Designed to work with any home audio source: CD player, laptop, smartphone, PC/Mac, etc

Listing includes:

• Vacuum Tube Power Audio Amplifier [VAT913] [2-channel] [Melpomene]
• Vacuum Tubes: [2 x 6N5S output vacuum Tubes] and [2 x 6N9S small signal Tubes]
• Nixie Tubes: [2 x IN-14] and [IN-19A]

Features:

The Melpomene VAT-913 Amplifier built on SRPP scheme and in fact is a push-pull power amplifier, not a single-ended gain stage.
The peculiarity of the SRPP circuit is that there is no direct current flown through the audio output transformer
and therefore it does not magnetize its core, this design allows the use of toroidal audio output transformers.

The use of toroidal audio output transformers results in a number of advantages:

• lower output frequency – up to 10 Hz (due to higher inductance);
• better flux linkage between the primary and secondary windings,
  this allows to obtain a higher frequency at the output, right up to 40 kHz;
• lower output impedance (due to fewer turns), resulting in increased damping factor
• higher power-to-weight ratio

Our output transformers use layer-by-layer sectioned winding,
which makes it possible to simultaneously achieve two seemingly opposite characteristics:
high inductive coupling and low capacitive coupling between the primary and secondary windings.
This allows for an absolutely linear frequency response from 10 Hz to 40 kHz
(see below in the description of the measurement graphs).

By avoiding feedback and minimizing dynamic distortion,
the amplifier achieves ultimate High-End sound while maintaining the genuine warmth of tube audio.

Unique Features:

• The world’s first Vacuum Tube Amplifier featuring Nixie Tube indication
• Nixie Tube meters elegantly display the current volume level
  as well as a countdown timer during Amplifier power-on and power-off.
  Since Amplifier Tubes require cathode heating to initiate electron emission,
  there is a short delay before the Amplifier reaches its optimal operating state
• The countdown clearly indicates this delay showing the time before high voltage is applied to
  or removed from the Tubes. It is an essential feature that helps maximize Tube lifespan
• Automatically restores the previously set volume for a smooth and uninterrupted experience
• Supports IR remote control for convenient power switching and smooth volume control

Specifications:

• Output Power: 2 × 5 Watts per channel
• Output Impedance: 8 Ohm
• Frequency Range (-3 dB): 6 Hz – 28.000 Hz
• Distortion (THD): 0.5% at 1 Watt output
• Supply Voltage: 100 – 240 V, 50/60 Hz
• Amplifier Dimensions: L: 33,5 cm x W: 24 cm x H: 13 cm (without Tubes)

Measurement Graphs:

Materials:

The Amplifier is made of noble materials:

• The case is made of 100% natural solid ash made on a CNC machine
  nd finished to perfection by hand by a high-class craftsman with over 40 years of experience
• The wooden surfaces of the case are covered with 7 layers of piano lacquer
• The top cover is made of stainless steel
• the volume knob is lathe-made from a solid brass billet and anodized to prevent oxidation

Melpomene VAT-913 Vacuum Tube Audio Power Amplifier with Nixie Indication by GRA & AFCH