Amplifiers
R200 Series
Integrated Vacuum Tube Power Amplifier
The R200 series utilizes four 5881 vacuum tubes for class AB1 push-pull power amplification, followed by one 12AX7 and two 6N1 tubes for signal amplification and driving, achieving an output power of 32W per channel.
The R200 series features four 5881 vacuum tubes for AB1 class push-pull power amplification, then incorporates one 12AX7 and two 6N1 tubes for signal amplification and driving, reaching an output power of 32W per channel. This series adopts a pure vacuum tube design and is manufactured with manual soldering processes. It includes an external, independent BIAS ADJ current monitoring meter and adjusting BIAS monitoring functions, which helps maintain the vacuum tubes in optimal condition at all times. Additional features include a 30-second silent delay function, ALPS potentiometers, Bluetooth 5.0 connectivity, a headphone output function, and easy-to-install plug-in vacuum tube protective covers.
The body is made from aviation-grade aluminum alloy with piano paint.
The external independent BIAS ADJ current display meter and current adjustment points.
High-grade ALPS motorized potentiometers made in Japan.
CNC-machined copper terminals plated with gold are aimed at further noise reduction and upgrades.
Details
Features of R200 Series
Aluminum
The body is made from aviation-grade aluminum alloy.
Manual Soldering
We employ artisanal hand-soldering techniques to solder each component manually.
30s Mute Delay
The high-voltage mute delay can effectively protect the vacuum tubes.
ALPS
We use high-grade ALPS potentiometers that are made in Japan.
BIAS ADJ
The high-end external, independent BIAS ADJ current display meter.
Bluetooth 5.0
We’ve added the functionality to play directly via Bluetooth 5.0 in this series.
Details
Sound of R200 Series
Classical
This series has made every effort to restore classical music instruments, live performance ambiance, and vocal nuances.
Pop / Contemporary
This series has made the greatest effort to achieve the mid-frequencies and high-frequency vocals needed for pop music.
Symphonic / Live
This series makes the utmost effort to reproduce the soundstage and dynamic range of live music faithfully.
Details
Vacuum Tube of R200 Series
We use only high-quality vacuum tubes for our products!
The 5881 vacuum tubes in the R200 series produce a delicate, transparent, luxurious, and smooth sound. For the preamp section, we use a specially customized 12AX7 vacuum tube for amplification and two 6N1 tubes for driving. In the power amp section, we employ four specially customized 5881 tubes for class AB1 push-pull power amplification. We have also incorporated a high-pass QCC3034 Bluetooth chip in this series, allowing you to play music through the R200 using any Bluetooth output device..
Specifications
| Titles | Details |
| Output Power | 32W + 32W |
| Harmonic Distortion | 1% (1kHz) |
| Frequency Response | 10Hz ~ 50kHz (-3dB) |
| Input Sensitivity | 210mV |
| Input Impedance | 100KΩ |
| Output Impedance | 4Ω, 8Ω |
| Signal to Noise | 90dB |
| VACUUM TUBE | 5881*2, 6N1*2, 12AX7*1 |
| Power | 160W |
| Unit Weight | 35.28lbs (16KG) |
| Bluetooth | v5.0 |
| Bluetooth Chip | QCC3034 |
| Bluetooth Input | aptx, aptxHD, SBC and AAC |
| Unit Dimensions | 15.36"W * 10.24"H * 8.47"D (390mm W * 260mm H * 215mm D) |
| Voltage Options | Japan - 100V North America - 120V Europe/Asia/Australia/New Zealand - 230V |
| Working Temperature | 32°F to 104°F (0°C to 40°C) |
| Working Humidity | 20% to 80% |
| Temperature | -4°F to 158°F (-20°C to 80°C) |
| Humidity | 20% to 90% |
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