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Pathos InPol Ear Headphone Amplifier


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Enquiry/price check? Click here SKU: PTHINPLE
Ex VAT: £3,579.17

Pathos InPol Ear is an ideal amplifier for headphones fans incorporating a sleek and compact build with pure Class A with the latest fully balanced double InPol technology.

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Warranty length 2 Years
Brand Pathos Acoustics

Tech Specs

- Type: Reference stereo
- Use: Integrated Headphone
- Tech: Pure class A double INPOL


- 32Ω: 3W bal, 10W Unbal
- 50Ω: 1.9W bal, 6.4W Unbal
- 120Ω: 800mW bal, 2.7W Unbal
- 300Ω: 320mW bal, 1W Unbal
- 600Ω: 160mW bal, 533mW Unbal
- Impedance: Bal 0.9Ω, Unbal 0.45Ω


- Freq response: 2Hz – 200KHz ±0.5db
- Sensitivity/Impedance: 2.2VRMS, 100KΩ
- Polarity: Selectable by remote
- Vol regulator: 2 x Burr Brown PGA2310
- THD: 0.1% @11W, SNR: >100dB
- Max: (In) 4.4, (Out) 20/10VRMS


- Analog In: Bal XRL, 4 unbal RCA
- (HiDac required for below inputs)
- USB: 1 Type “B”, 2 Type “A”
- SPDIF: coaxial, SPDIF optical,
- Ethernet: RJ45
- Outputs: Pre stereo line RCA
- XLR: Preout stereo line Bal
- Headphone: 6.3mm Jack connector
- 4 pin XRL: 2 Connectors


- Power consumption: 110W
- Dimensions (DWH): 370 x 280 x 180mm
- Weight: 12.5Kg

Product Description

Pathos InPol Ear is a high end Class A headphone amplifier (with optional DAC) based around a fully balanced design and latest generation double InPol technology. The dual-match valve/headphone meets the highest quality of the sound enabled by the tubes with a low power demand that is typical of headphones.

Listening by headphones through this amplifier, is the beginning of a route in search of the fullness of sound, as conveyed by InPol. The InPol technology improves high-end extent, which has a strong nature, which is also due to the addition of two balanced outputs (10W @16O) and one unbalanced output (6W @16O).

Optional HiDac

The optional HiDAC 24-bit/192kHz internal D/A converter module adds two balanced (XLR), two coaxial (S/PDIF), and one digital (USB 2.0) connections. The upgraded DAC (HiDac EVO) works at 32 bit and 384KHz, which is thanks to the new converter (ESS 9018 k) which improves and ensures the listener enjoys the digital recordings as the original artist intended.

Evo incorporates a web application letting you control the DAC through a PC as well as to connect a hard disk and a Wi-Fi dongle directly to the unit transforming into a music centre. HiDac EVO also makes it possible to connect to your wireless network eliminating the need for cables running around the room.

InPol System

InPol (Inseguitore Pompa Lineare - Linear Pump Follower) is a hugely successful and multi-award winning system patented by Pathos Acoustics. Devices that use Inpol technology have a particular circuit design, that results in exceptional audio character personality. The design is fully balanced in Class A with a single solid state component in a follower configuration, with high current gain and with voltage gain together.

Valve Amplifier

The valve amplifier enhances the input signals voltage and InPol supplies the current that drives the speakers without any extra amplification. In this way, the signal is entrusted to the valves and becomes a true copy of the original with all the quality, purity and harmonic content intact.

The amplifier has been designed in such a way, that it increases the theoretical output in pure Class A (between 25% and 50%0, which together with low output impedance, fundamental for the damping factor, and further improved by the double InPol.


The InPol Ear headphone amp is neat and compact, with a top visual aesthetic, but it is also powerful. The InPol Ear is a perfect amplifier for fans of headphone listening, the chassis is carefully and meticulously crafted, with aluminium heatsinks on the sides, shaped in the form of the Pathos logo. The side heatsinks highlight the carefully protected tubes situated in the middle of the chassis.

This amplifier is handmade in Italy and crafted with high-quality electrical components, the result is an amplifier that not only performs exceptionally but also looks amazing too. Available in different colours and with customised finishes, so you can choose the overall aesthetic you want from you amplifier.

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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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