300B Integrated Amplifier
Overview
The Qualiton 300B is an integrated stereo amplifier with 2 x 25 Watts output power, built around the captivating sound character of 300B power tubes. This amplifier harmoniously blends our classic heritage with modern details: it features refined vacuum tube circuits, which we have enhanced with several additional functionalities. In shaping the overall sound character, our primary goal was to move away from the pronounced coloration often associated with amplifiers utilizing the 300B tube. Instead, we envisioned a smooth, musical and balanced vacuum tube amplifier that excels across the entire audio frequency range.
Pragmatic Audio Design
At Qualiton, we adhere to a pragmatic approach in tube amplifier design. We believe that a truly exceptional amplifier should:
- Be compatible with a wide range of loudspeakers.
- Exhibit a Total Harmonic Distortion (THD) of less than 0.5% across the entire power spectrum, from milliwatts to rated power, spanning 20 Hz to 20 kHz.
- Maintain a flat THD vs. Frequency plot when measured at a fixed output power.
- Deliver fast and controlled transients throughout the audio range, which goes hand in hand with the frequency response being wide and flat.
- Operate at low noise levels with an exceptional signal-to-noise ratio.
- Combine thoughtful design, robust technical parameters, and exceptional sound quality.
In the preamplifier and driver sections, the 12AX7 and 12AT7 tubes play a crucial role in achieving these goals. Furthermore, their DC-stabilized filament supply and circuits with low offset and stable DC operating points ensure resilience against parameter variations.
Tech Specs
Tech Specs
In the Box
In the Box
- 300B Integrated Amplifier
- 2 x 12AX7EH Gold vacuum tubes
- 4 x 12AT7EH Gold vacuum tubes
- 4 x 300B EH vacuum tubes
- Remote Control
- Standard Mains Cable
- PH2 Phillips Screwdriver
- Pair of Gloves
- User's Manual
Downloads
Downloads