Willsenton R8 KT88 x4 Tube Amplifier – Hi-Fi Integrated Amp (Silver)

Willsenton R8: A New Model Upgrade for 2023

The Willsenton R8 remains a pinnacle of hand-crafted audio engineering. The current model, upgraded in December 2023, is built around a robust, welded frame and a purpose-built power transformer. Its two high-quality wideband EI output transformers contribute to a broad, dynamic sound with ample headroom for demanding passages. The design favors a clean signal path, using thick, silver-plated signal leads and a carefully chosen push/pull topology powered by KT88/EL34 family tubes. This combination aims to deliver musicality across genres while maintaining dependable operation at home listening levels.

Versatility and Tube Flexibility

Designed to be a true multi-role amplifier, the R8 can function as an integrated amplifier, a power amplifier, or a dedicated headphone amplifier. A switchable triode or ultra-linear mode lets you tailor the tonal balance to your speakers or headphones, offering a sense of control without sacrificing reliability. The unit also features an external bias display header and a back-panel tube selection control, making it easy to experiment with different tubes (KT88, EL34, 6550) and to keep the design engaging for enthusiasts who enjoy tweaking their setup.

Key Build Details and Usability

Key construction highlights include a square power transformer engineered specifically for this model and a pair of 6SN7/6SL7 tubes for filtering and signal amplification stages. The design accommodates a wide range of listening preferences while preserving the integrity of the signal through high-grade mechanical and electrical components. An infrared remote control, a plug-in tube shield, and a Japanese ALPS motor potentiometer add to the premium user experience. The unit ships with a tube-protective shield, a power-on mute delay (~30 seconds), and a clear manual for setup and operation.

Real-World Use and Pairing Tips

With its 16W+16W (KT88 Triode) and 30W+30W (KT88 Ultra-Linear) output options, the R8 is capable of driving a wide range of loudspeakers that demand clean, controlled power. The 12 Hz–40 kHz frequency response and a low THD profile can translate into a wide, airy stage with well-defined imaging, especially when paired with efficient speakers and well-matched preamp input sources. The headphone output (30–300 ohms) provides a private listening route for late-night sessions without sacrificing tonal balance. For best results, enthusiasts are encouraged to allow the amplifier to run-in for 100–300 hours to reach a settled, stable sound character, while ensuring proper ventilation and moderate volume during the early hours of use.

What’s Included and Quick Highlights

• The model on sale is the New Model upgraded in December 2023.
• Back-panel tube selection allows easy swapping between EL34, KT88, or 6550 for varied tonal flavors.
• Triode and ultra-linear modes can be toggled for flexible sound shaping.
• Independent preamplifier input path and pure post-level function support versatile setups.
• Remote control, tube shield, fuse, and English manual for convenience and safety.

Technical Snapshot

• Output: 16W+16W (KT88 Triode); 30W+30W (KT88 Ultra-Linear)
• Frequency response: 12 Hz–40 kHz (±1.5 dB)
• SNR: 89 dB (A-weighted)
• Inputs: CD, AUX1, AUX2, PRE-IN
• Outputs: 4 ohms, 8 ohms; Headphone 30–300 ohms
• Size/Weight: 400x390x200 mm; approx. 26 kg