E.A.T. E-Glo Petit B Balanced Phono-Preamplifier

E-Glo Petit B: Reference-class symmetrical hybrid tube phono preamplifier

With the EAT E-Glo Petit B, analog music playback in a compact format reaches a completely new level. Equipped with a fully balanced amplifier stage and all-discrete circuitry, this phono preamplifier extracts the maximum sonic potential from high-quality MC and balanced MM cartridges. The combination of selected tubes and low-noise semiconductor technology ensures an exceptionally natural, dynamic, and vibrant sound, free from distracting background noise.

Fully symmetrical signal processing via XLR

The centerpiece of this further development is the consistently symmetrical design of the first amplifier stage. Hot (+) and cold (-) signals are processed separately via the balanced XLR inputs, reliably filtering out any interference picked up along the way. Two independent amplifier sections ensure that only the pure musical information remains at the end. All MC cartridges, as well as specially modified, balanced MM cartridges, are suitable for fully balanced operation, while classic MM and MC cartridges continue to operate with their usual flexibility via the RCA inputs.

Sophisticated hybrid tube topology without IC op-amps

Instead of relying on conventional integrated circuits (IC op-amps), EAT uses hundreds of hand-selected individual components in the E-Glo Petit B. Extensive listening tests prove that this fully discrete design sounds significantly more neutral and three-dimensional than conventional circuits.

Optimized input stage: Three discrete semiconductor operational amplifiers maximize the signal-to-noise ratio and provide a flawless signal basis for the first discrete RIAA equalization stage.

Musical tube stage: Two ECC83S triodes work together in a single-ended hybrid stage with a transistor, including the second RIAA equalization and a switchable subsonic filter.

Stable output stage: A dual discrete semiconductor operational amplifier converts the signal back into a symmetrical format, guarantees a low output impedance and keeps the DC offset to a minimum using special DC servo circuits.

Maximum flexibility for two turntables

Discerning vinyl collectors benefit from well-designed connection and customization options that can be accessed directly from the front and top without the need to open the case:

Two turntables in parallel: Both inputs can be individually configured and reliably save their selected parameters.

Wide amplification range (40 dB to 70 dB): Thanks to the symmetrical design, the preamplifier effortlessly handles even quiet MC cartridges and precisely adjusts the volume to CD players or streamers.

Finely adjustable termination impedance: In addition to the "Low" range for MC systems, the rare "High" setting offers the possibility to fine-tune the sound of MM cartridges even outside the rigid 47kOhm standard.

Simultaneous signal output: RCA and XLR outputs can be used in parallel to drive multiple amplifiers or audio systems.

External power supply and linear upgrade EAT LPS 2

To protect sensitive audio signals from electromagnetic fields, EAT consistently uses external power supplies. Even the standard external switching power supply operates with high efficiency, boasting a standby power consumption of less than 0.5 watts. For those seeking to further enhance sound quality, the preamplifier can be upgraded with the optional EAT LPS 2 linear power supply. Its vacuum-impregnated transformer with extremely low core saturation, winding shielding, and integrated DC blocker suppresses mains interference and mechanical vibrations to an absolute minimum.

Elegant all-aluminum housing with individual accents

Visually, the E-Glo Petit B blends seamlessly into high-end hi-fi systems. The solid, all-aluminum housing reliably shields the electronics and offers a clear view of the two ECC83S tubes, whose new LED illumination can be individually adjusted in color. Precise toggle switches on the front panel allow for quick and easy adjustments.

Technical data

Input impedance (HIGH): 30k, 36k, 42k, 47k, 53k, 59k 65k, 75k ohms

Input impedance (LOW): 10R, 18R, 43R, 75R, 150R, 300R, 600R, 1k2 ohm

Charging capacity: 50pF, 150pF, 270pF, 370pF, 520pF, 620pF

Output impedance: 100 ohms/RCA; 2x100 ohms/XLR

GAIN: 40dB, 45dB, 50dB, 55dB, 65dB,70dB

THD, MM / MC: < 0.006% / 1V RMS (40-55dB) MC 0.05% / 1V RMS (65-70dB

SUBSONIC: 8dB/Octave

Power supply: 230V/115 VAC selectable on the back panel, 50/60Hz /52VA

Inputs/Outputs: RCA, XLR

Power consumption: 17W maximum, <0.5W in standby

Dimensions (W × H × D): 186 × 87 × 262 mm

Weight: 2.7kg without power supply