Aesthetix Lo Eclipe

Aesthetix Lo Eclipe

All-Tube Phono Preamplifier

Aesthetix Lo Eclipe
Aesthetix Lo Eclipe
Aesthetix Lo Eclipe
Aesthetix Lo Eclipe
30.750,00 Price include 21% VAT Price exclude VAT € 25.413,22

Io is an all-tube phono stage suitable for the most demanding cartridges including low-output moving coils. A proprietary differential circuitry design achieves high gain with extremely low noise. A separate power supply chassis removes any possibility of transformer noise corrupting delicate audio circuitry. Peter Moncrief Stealth Capacitors are used in the Eclipse Edition for unparalleled sound quality. An optional innovative mechanically-switched discrete resistor volume control yields precise resolution at all listening levels.

- High gain / low noise capable of handling low output moving coils.
- Zero feedback.
- 80dB maximum gain, internally selectable down to 56dB.
- Flexible user selectable loading on the back panel from 47Kohms down to 10ohms.
- All tube amplification and output (16 tubes total).
- Separate vacuum tube regulated power supply utilizing 8 tubes.
- Two sets of XLR and two sets of RCA outputs per channel.
- Input can be either RCA or XLR.
- Optional: Innovative and unique mechanically switched discrete resistor volume control with 46 positions using Roederstein resistors, one for each channel.

Dual Power Supply
Io comes with a single power supply standard, or optionally a second power supply may be added for true dual-mono (see "Power Supply" tab above for more detail).

Stealthcap Capacitors
Musical signals passing through a capacitor are blurred or clouded as signal reflections bouncing off the capacitor plate corrupt the original musical signal. StealthCap capacitors created by Peter Moncrief aim to cure this problem by dramatically reducing reflections along the capacitor plate. The "Stealth Technology" is made possible by a combination of laborious precision handiwork and costly exotic materials including new conductors, dielectrics, and composite resins. The resulting signal has a quieter background, rich and detailed spatial imaging, time focused musical coherence, and a broader more impactful dynamic range. The Io Eclipse uses eight .22uF / 600v Stealth coupling capacitors made of exotic copper foil. These are used between the second and third gain stages, and the third gain stage and output stage. The Io and Callisto Eclipse output stages also use eight 4uF / 400v Stealth capacitors in a unique balanced configuration.

One defining characteristic of the Jupiter Series is separate power supplies. Each main unit, or audio chassis, is dual mono in construction; there are completely separate left and right audio boards and each has its own power connector on the rear of the chassis. Each main unit requires at least one power supply, a single power supply cannot power both an Io and a Callisto. There are two versions of power supply available: Stereo or Dual Mono. In the stereo configuration, a single power supply powers both audio channels and has two power connectors on the rear. In the Dual Mono configuration, two separate power supplies are used, each with a single power connector. In the Dual mono configuration, the unit becomes pure dual mono, all the way down to the ac wall connection! The Jupiter Series Power Supply is the size of a power amplifier and weighs approximately 50 pounds. The Power Supply has two main sections, the heater supply and the high voltage plus and minus supplies. At the heart of the heater supply is its massive, low flux, 210 VA power transformer which has fourteen separate secondary windings that are individually regulated and supply both the Power Supply and main unit heaters. The high voltage supply is composed of a similar massive 170 VA transformer which feeds a common-mode choke input filtering network and then high current vacuum tube regulators (one EL34/6CA7, three 12AX7 tubes per regulator). Each regulator is capable of supplying 600 volts at 100mA. There are two such regulators in the Power Supply. Each separate amplification or buffer stage has its own power supply filtering network and regulated heater supply to isolate individual sections and prevent stage interaction.

- Inputs: one phono input, RCA and XLR jacks provided
- Inputs (with volume control option): one line level balanced input, RCA and XLR jacks provided
- Outputs: 2 RCA (SE) and XLR (balanced)
- Gain: 80dB maximum
- Volume control (optional): switched resistor network volume control with 46 steps
- Frequency response: +- 0.25 dB, 20 Hz - 20 Khz
- Signal to noise: 70 dB minimum, A-weighted (ref 1 mv input, 80 dB gain setting)
- Input impedance: 10 ohms - 47K ohms (adjustable)
- Output impedance: 1K ohms SE, 600 ohms balanced
- Recommended load: 10K ohms or greater (SE), 20K ohms or greater (Balanced)
- Tubes, each channel: V1-V6 (12AX7); V7 (6DJ8 / 6922); V8 (6SN7)
- Power consumption: 350 watts

Physical dimensions:
- Main unit, MkII or Signature: 5 5/8" high, 19" wide, 18 1/2" deep including jacks
- Main unit, Eclipse: 5 1/2" high, 17 1/2" wide, 18 1/2" deep including jacks
- Power supply, MkII or Signature: 5 5/8" high, 19" wide, 18 1/4" deep
- Power supply, Eclipse: " high, " wide, " deep including jacks

Shipping weights:
- Main unit, MkII or Signature: 32 lbs.
- Main unit, Eclipse: 37 lbs.
- Main unit, MkII or Signature w/vol: 38 lbs.
- Main unit, Eclipse w/vol: 45 lbs.
- Power supply, MkII or Signature: 50 lbs.
- Power supply, Eclipse: 55 lbs.


"This is the most natural sounding phono stage we have ever heard...the casework is immaculate...beautifully crafted."
What Hi-Fi?

"The Absolute Sound Golden Ear Award (2008)

"..exquisite dynamic contrasts... relaxed presentation... glorious midrange, excellent bottom octave...",
The Absolute Sound Editor's Choice Award

"Neutral in presentation ... no over or under emphasized artifacts ... it blooms and explodes ... a profound moment in music listening"

"The Aesthetix Io is a singularity. It does everything better than any phono stage I have heard..."
Paul Bolin, The Absolute Sound Golden Ear Award

"...Astounding range of dynamic contrasts... uncompressed ease... full of bloom when the music so dictates, yet never loose or out of control... the phono preamp of choice today... I bought my review sample."
Don Saltzman, The Absolute Sound

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User manual

Vacuum Tube Placement