Pathos InPol EAR black matte

InPol Ear is an integrated headphone amplifier in pure class A, with a fully balanced latest generation dual InPol. Thanks to the characteristics of its circuits, InPol Ear is an excellent fully symmetrical tube preamplifier.

With the HiDac Mk2 converter (optional), music lovers who want the best of the latest digital sources will find their requirements fully satisfied.

InPol (Inseguitore Pompa Lineare - linear pump follower) is a patented system by Pathos Acoustics that has been very successful and won many awards.

InPol devices have a particular sound personality that can only be obtained by means of this particular fully balanced class A circuit design using a single semiconductor component in follower configuration, with high current gain and voltage gain together. The tube amplifier amplifies the voltage of the input signal and InPol provides the current needed to drive the speakers without further amplification. In this way, the signal becomes a true copy of the original, with all the quality, purity and harmonic content of the original.

This technology allows an increase in the theoretical output in pure class A from 25 to 50%, as well as a low output impedance, fundamental for the damping factor, and further improved by the dual InPol.

• Built-in pure Class A headphone amplifier (dual INPOL)
• Fully balanced circuitry
• 2 x Burr Brown PGA2310 volume control (180 steps, 0.5dB)
• Tube preamplification: 2 x Electro-Harmonix 6922 double triode
• Output power:
  • 3 W (balanced), 10 W (unbalanced) into 32 Ω
  • 1.9 W (balanced), 6.4 W (unbalanced) into 50 Ω
  • 800 mW (balanced), 2.7 W (unbalanced) into 120 Ω
  • 320 mW (balanced), 1 W (unbalanced) into 300 Ω
  • 160 mW (balanced), 533 mW (unbalanced) into 600 Ω

Measurements

• Output impedance:
  • Balanced: 0.9 ohm
  • Unbalanced: 0.45 ohm
• Frequency response: 2 Hz to 200 kHz (± 0.5 dB)
• Input sensitivity: 2.2 VRMS
• Input impedance: 100 kohm
• Output polarity configurable via remote control
• Total harmonic distortion (THD): 0.1% @ 11W
• Signal-to-noise ratio: > 100 dB
• Max. input voltage: 4.4 VRMS
• Max. output voltage:
  • Balanced: 20 VRMS
  • Unbalanced: 10 VRMS

Connectivity

• 1x balanced stereo XLR line input
• 4x unbalanced stereo RCA line inputs
• 1x balanced stereo XLR pre-out
• 1x unbalanced stereo RCA pre-out (phase adjustable)
• 1x 6.35 mm headphone jack output
• 2x 4-pin XLR headphone outputs

Optional HiDac EVO Card

• 1x 6.35 mm headphone jack, 2x 4-pin XLR headphone outputs
• 1x unbalanced stereo RCA pre-out (phase adjustable)
• 1x balanced stereo XLR pre-out

General

• AC voltage: 220-240VAC/50-60Hz
• Power consumption: 110 W
• Dimensions (WxHxD): 370 x 180 x 280 mm
• Weight: 12.5 kg