6P6S

6P6S Tube Amplifier – Compact SE Class A Stereo Amplifier

The 6P6S is a compact Single-Ended (SE) Class A stereo tube amplifier, created for audio enthusiasts who value authentic tube sound, handcrafted quality, and thoughtful design. Designed and built in Latvia, it is made with 100% hand craftsmanship using point-to-point wiring, ensuring the shortest possible signal path, minimal interference, and high electrical precision. This approach preserves signal purity and natural dynamics — essential qualities of true Class A tube amplification.

Construction:

Chassis:

• The chassis is crafted from solid oak, solid zebrano wood, and high-quality plywood, resulting in a visually refined and acoustically stable structure. The natural wood grain gives a unique character. The amplifier’s design emphasizes classic tube aesthetics—openly exposed tubes, solid proportions, and a restrained, minimalist form create a harmonious balance between tradition and modern elegance.
• Metal elements add a contemporary, industrial-inspired accent.

Tubes:

• Power Stage: Two 6П6С tubes, the Soviet-era equivalent of the legendary 6V6, are used in the output stage.
  The 6П6С tetrode was developed in the mid-20th century and originally intended for military and professional equipment, where high reliability, long service life, and stable performance were essential. These tubes were widely used in radio equipment, studio amplifiers, and musical instrument amplifiers—especially guitar amplifiers.
• Driver Stage: Two 6Н6П tubes are used as driver tubes, highly regarded in the audio world for their stability and musicality. The 6Н6П was developed in the second half of the 20th century as a low-noise, high-linearity double triode, designed for signal amplification in professional audio and communication equipment.

Technical Specifications:

• Output Power: 2 x 3 W – ideal for high-sensitivity speakers and smaller spaces, delivering expressive and detailed audio performance.
• Dimensions: Width 48 cm, Height 16 cm, Depth 17 cm.
• Weight: 8 kg – lightweight and easy to position, yet stable enough for optimal performance.

Sound Characteristics:

Tube amplifier 6P6S delivers a classic Class A tube sound—warm, rich, and naturally harmonic. The presentation is balanced, with pronounced spatial depth and a smooth, musical flow. This amplifier excels with vocal music, jazz, blues, acoustic recordings, and chamber music. It avoids aggression or artificial emphasis, allowing the music to breathe and unfold naturally.

The 6П6С tubes offer a balanced and detailed tonal character, creating a relaxed and engaging listening experience. They are known for their warm and musical midrange, smooth and unobtrusive highs, natural dynamics without harshness, and pleasing harmonic richness. In Single-Ended Class A operation, these tubes sound especially organic—vocals are vivid and present, while acoustic instruments gain depth and natural texture. The sound is fluid, with gentle tube compression that makes long listening sessions effortless and enjoyable.

The 6Н6П tubes provide clean and harmonious signal delivery to the output stage, preserving musical nuances and micro-detail. They are characterized by excellent resolution, precise yet non-dry sound, strong synergy with power tubes in SE circuits, and a stable, musical signal foundation.

Overall Impression:

The 6P6S is an amplifier for those seeking not just sound, but an experience—authentic tube sonics, artisanal craftsmanship, and an aesthetic that gains value over time. It is an instrument that brings calm, warmth, and a tangible musical presence into the listening space.

Key Specifications:

• Technology: SE Class A stereo amplifier
• Assembly method: Point-to-point wiring
• Materials: Solid oak, solid zebrano wood, plywood, metal
• Tubes: 2 x 6П6С; 2 x 6Н6П
• Output Power: 2 x 3 W
• Dimensions (width x height x depth): 46 x 16 x 17 cm
• Weight: 8 kg