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MP-1K

  • Rugged stainless steel chassis
  • High quality EI and toroidal transformers
  • High quality components
  • Switching between ultra-linear and triode
  • Innovative tube circuitry
  • Point to point soldering
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Product Description

Mono Block Tube Power Amplifier
Output Impedance 4,8 Ω
Output Power 12.5W/CH.(Triode / P-P Class A)
25W/CH. (Ultralinear / P-P Class A)
Frequency Response 10Hz~40kHz ± 1dB
T.H.D. < 1% 20Hz-20KHz (Ref. Output)
Input Sensitivity 560mV
Input Impedance 75kΩ(RCA)
S/N ratio >90dB (Hum Noise<1mV)
Channel Balance <1dB (20Hz-20KHz)
Vacuum Tubes /Ch. (KT-66×2, 12AU7x1, 12AX7x1)
Weight N.W.: 8.5KGx2     G.W.: 19KG
Dimension (DxWxH) 335mm × 116mm × 265mm

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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
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AS-2i
AS-2i

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Mono Block Tube Power Amplifier Input Impedance 68KΩ (RCA) Output Impedance 4, 8 Ω Output Power 21W (CLASS A PUSH-PULL) Frequency Response 20Hz~20kHz±1dB T.H.D. <1% 20Hz-20kHz (REF. OUTPUT) Input Sensitivity 600mV~940mV S/N ratio >89dB  (HUM NOISE<1mV) Channel Balance <1dB  20Hz-20KHz … Continued

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AS-9 MKIII (EL-34)
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Mono Block Tube Power Amplifier
Input Impedance 100KΩ (RCA)
Output Impedance 4Ω,8Ω
Output Power 75W/CHANNEL CLASS AB P-P(ULTRALINEAR)
38W/CHANNEL CLASS AB P-P(TRIODE)
Damping Factor >5
Frequency Response 28Hz-40KHz  ±0.5dB
T.H.D. <0.8%  20Hz-20KHz (REF. OUTPUT)
Total Gain 26dB
Input Sensitivity 600mV-2V
S/N ratio >96dB  (HUM NOISE <2mV/8 Ω)
Channel Balance <1dB  20Hz-20KHz  (MAX.  VOLUME)
Phase Mode NORMAL(0°)/REVERSE(180°)
Vacuum Tubes /Ch. EL-34(6CA7)×4
6DJ8(ECC-88 OR 6922) ×2
6CG7(6N6)×1
Weight  N.W.:18.5kg / G.W.:19kg
Dimension  (D×W×H) 425mm × 290mm × 195mm
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