Constellation Perseus Phono Preamplifier

The Perseus can be tuned to optimize its performance for even the most exotic phono cartridges. Front-panel controls allow adjustment of source impedance and load capacitance for the ideal performance from any cartridge you choose. Impedance is continuously adjustable from 0 to 1000 ohms for moving-coil cartridges. For moving-magnet cartridges, the Perseus provides four impedance selections from 33 to 100 kilohms as well as five load capacitance options from 200 to 400 picofarads. Whether you decide to follow the cartridge manufacturer's recommendations or explore your own course, the Perseus has the versatility to get the best possible sound from your cartridge.

Fully Complementary Circuitry

The Perseus's balanced audio circuitry is essentially two mirror-imaged preamp circuits, one to amplify the positive half of the audio signal, the other to amplify the negative half. The fully balanced design cancels the effects of interference-an important capability considering the low level of the signals inside a phono preamp-and also increases slew rate and frequency response.

Mechanically Isolated Circuit Board

The audio circuit board floats on an elastomeric suspension to isolate it from the effects of outside vibration. Consider it like a raft floating on a calm lake, protected from disturbances on shore.

Machined Solid Aluminium Chassis

A heavy aluminium chassis with 8.2mm minimum wall thickness shields the internal circuitry from all forms of electromagnetic interference, and also helps damp vibration that might affect the audio circuitry.

Balanced and Unbalanced Inputs and Outputs

Easily interfaces with any turntable and any preamplifier.

Two Moving-Coil Inputs, One Moving-Magnet Input

Ample inputs even for the most exotic triple-tonearm turntables.

Adjustable Source Impedance

The Perseus provides enough adjustment range to suit any cartridge manufacturer's specification or any personal taste. Source impedance for the moving-coil cartridge inputs is continuously adjustable from 5 ohm to 1000 ohm, while source impedance for the moving-magnet cartridge input can be set to 33K ohm, Separate Power Supply 47K ohm, 68K ohm or 100K ohm.

Adjustable Load Capacitance

The Perseus's load capacitance can be set from 200 to 400 pF in 50-pF increments to meet the needs of any moving-magnet phono cartridge.

Separate Power Supply

A separate power supply enclosure protects the sensitive analog audio circuits from interference. A high-quality R-core transformer feeds the analog audio circuitry while a separate supply feeds the Perseus's control circuitry. Hypersonics cables and connectors provide a reliable, high-current power transfer. The result is an ample and consistent supply of clean DC.

*All Units are Available in Black at an Additional Cost*

Constellation Perseus Phono Preamplifier User's Manual

Specifications

Inputs: 3 stereo XLR & 3 stereo RCA

Outputs: 1 stereo XLR, 1 stereo RCA

Power Output: <0.005% 10Hz - 20kHz

Gain: 65 dB max

Output Noise: -100 dB re 2V output, 20 Hz to 20 kHz

Frequency Response: 0.10db 10Hz - 20kHz

Output Impedance: < 50 ohm

Load Impedance:

5 ohm to 1000 ohm, MC inputs

10K ohm to 100K ohm, MM inputs

Load Capacitance: 100 to 400 pF, selectable

EQ Curve: RIA

Weight:

35 lbs / Phono Preamp

22 lbs / Power Supply

Dimensions: 

( W ) 17" x ( H ) 5.5" x ( D ) 15.75", Phono Preamp

( W ) 17" x ( H ) 2.75" x ( D ) 14.5 ", Power Supply

 

 

 

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