Cyrus/Mission Cyrus 2
¥ 105,000 (around 1987)
Commentary
Pre-main amplifier designed based on the same concept as Cyrus1.
The Cyrus2 has improved current supply capability in addition to increased output.
It also has an MC input designed with an emphasis on noise and hysteresis elements.
There was an external power unit Cyrus PSX sold separately.
It is possible to expand the power supply capacity by combining with Cyrus PSX.
Since protection circuit is not mounted, it is necessary to pay attention to short circuit, etc.
Model Rating
| Type | Pre-main amplifier | ||
| Power Amplifier Unit | |||
| Continuous average power | 60W + 60W (8 Ω, both channel drive) 80W + 80W (4 Ω, both channel drive) |
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| Current supply | Continuous 15 Arms Peak to peak instant 60A |
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| Damping factor | 100 (20 Hz to 20 kHz) | ||
| Dynamic head room | 1.7dB | ||
| Slew rate | 10 (input filter bypass) | ||
| Distortion factor |
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| Preamplifier Section | |||
| Input Sensitivity (Ref. 1W O/P) | Phono MC:0.022mV Phono MM:0.31mV Line:50mV |
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| Input Overload (1 khz) | Phono MC:24dB Phono MM:27dB Line : Undefined |
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| Maximum output level | Tape out:11Vrms Power amp:24Vrms |
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| Input impedance | Phono MC : 470k Ω + 6.8 nf Phono MM : 47k Ω + 100 pF Line : 14k Ω |
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| Output impedance | Tape out : 10 Ω + 2.2 μ F Power amp : 0.08 ohm |
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| Frequency characteristic | Phono RIAA : 20 Hz to 20 kHz ± 0.2 dB Line : 1 Hz to 55 kHz -3dB |
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| Total harmonic distortion factor | Phono MC:0.01% Phono MM:0.004% Line:0.004% |
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| Intermodulation Distortion Factor (SMPTE IMD) | Phono MC:0.01% Phono MM:0.004% Line:0.004% |
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| S/N ratio (IHF-A, 1W) | Phono MC:77dB Phono MM:84dB Line:87dB |
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| <Others> | |||
| External dimensions | Width 215x Height 85x Depth 350 mm | ||
| Weight | Approx. 5 kg | ||
| Sold Separately | Power Supply Unit Cyrus PSX (¥ 85,000) | ||