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This is a no
compromise MM and MC Reference phono amplifier designed for use in the finest
analogue systems. The amplifier's complimentary, fully symmetrical Dual Mono
design improves channel separation, distortion, signal to noise ratio and
accuracy whilst maintaining the purity and coherence of the audio signal.
Using the Artaxerxes.X module, this head amplifier features three switchable
cartridge gain settings, one for MM and one for standard output MC
cartridges. The third setting is dedicated to Roksan's Shiraz and higher
output MC cartridges.
The
Artaxerxes.X module is DC powered and has power supply failure protection.
Mains power via a high quality mains filter and the 350VA double shielded
ultra low noise Toroidal transformer is fed to the Roksan reference state of
the art DS1.5 DC module. The DS1.5 in turn provides a stable, noise free low
impedance DC power to the Artaxerxes.X phono amplifier module.
- Silver or Black front panel
- High quality Mains inlet filter
- 350VA ultra low noise, double shielded
Toroidal transformer
- DS1.5 reference ultra low noise DC power
module
- Artaxerxes.X reference phono amplifier module
- 10 ultra low noise regulated power rails
- MM, MC and higher output MC gain settings
(5mV, 0.25mV and 1mV)
- Input capacitance setting (47pF and 147pF)
- Input resistance setting (10Ω, 100Ω,
1kΩ and 47kΩ)
- Over 26dB of headroom
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DS1.5
Reference DC Power Module
Output Voltage +26, 0, -26 Vdc
Noise < 10 microvolt (ref. 1 Hz - 3 MHz)
Output Impedance < 0.01 Ohm (ref. 20 Hz - 20 kHz)
ARTAXERXES.X
Reference Phono Module
Gain Settings MM 40dB @ 1kHz
MC1 54dB @ 1kHz
MC2 60dB @ 1kHz
S/N Ratio MM > 88dB AWTD (ref. 5.0 mV)
MC1 > 84dB AWTD (ref. 1.0 mV)
MC2 > 80dB AWTD (ref. 0.25 mV)
Frequency Response 20Hz - 30kHz +/- 0.2dB
Overload Margin 26dB all settings
THD+N < 0.01%
Output Impedance < 50Ω
Voltage Supply Requires: +26, 0, -26 Vdc (DS1.5)
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