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Reference 3 (845)
- Rugged and beautiful stainless steel chassis with aluminum heat sinks
- High quality EI transformers and components
- Switching between high and low negative feedback
- Innovative tube circuitry with choke coil
- Point to point soldering

AS-8i
Stereo Tube Integrated Amplifier | |
Input Impedance | 250Kohm (RCA) |
Output Impedance | 4, 8 Ω |
Output Power | 55W×2 /CLASS AB2 P-P(ULTRALINEAR) *70W×2 MAX. |
28W×2 /CLASS AB2 P-P(TRIODE) *38W×2 MAX. | |
Damping Factor | > 5 |
Frequency Response | 20Hz-30KHz ±1dB |
T.H.D.: | < 1% 20Hz-20KHz (REF. OUTPUT) |
Total Gain | 29dB |
Input Sensitivity | 300mV-600mV |
S/N Ratio | > 93dB (HUM NOISE <3mV) |
Channel Balance | < 1dB 20Hz-20KHz (MAX. VOLUME) |
Channel Sepration | > 65dB 1KHz-3.3KHz |
Vacuum Tube | V1,V2,V3,V4: EL-34(6CA7)×4 |
V7: 12AX7(ECC-83,5751,4004) ×1 | |
V5,V6: 12AU7(ECC-82,6189,4003)×2 | |
Dimension (L × W × H) | 410mm × 320mm × 190mm |
Weight | N.W.:18kg |

Reference 5 / Power One (300B)
Balanced Class A P-P Mono Block Tube Power Amplifier | |
Output Impedance: | 4,8,16 Ω |
Output Power: | 60W/Ch. |
Input Mode: | RCA or Balanced |
Input Impedance: | RCA>100K Ω, Bal-600-22K Ω |
Frequency Response: | 20Hz-20KHz ±1dB |
T.H.D.: | <5% 20Hz-20KHz (Ref. Output) |
S/N ratio: | >87dB (Hum Noise<2mV) |
Vacuum Tubes: | 300Bx4 /Ch |
6N9P(6SL7)x2 /Ch | |
12AX7(ECC83)x1 /Ch | |
12AU7(ECC82)x3 /Ch | |
Weight: | 31.5kg (N.W.)/ 37.5kg (G.W) |
Dimension (D x W x H): | 475 x 405 x 215 mm |