Pathos · Headphone Amplifiers
InPoL Ear
The Pathos InPoL Ear is an InPoL headphone amp and preamp with balanced drive, tube circuitry, and selectable output polarity.
fig. 01 · headphone amplifiers
InPoL Ear
From Pathos
The InPoL Ear is built for headphone listening first, with Pathos tube circuitry, balanced and unbalanced headphone outputs, and preamp outputs. It's rated for headphones from 32 to 600 ohms, runs from 2Hz to 200kHz, has one balanced XLR input plus 4 RCA line inputs, and can add digital inputs through the HiDac Mk2.
Specifications
| Product type | Reference stereointegrated amplifier forheadphone Pure class A double INPOLtechnology -fully balancedand preamplifier |
|---|---|
| Output power | ImpedanceUnbalancedBalanced32 Ω3W10W50 Ω1,9W6,4W120 Ω800mW2,7W300 Ω320mW1W600 Ω160mW533mW Impedance Unbalanced Balanced 32 Ω 3W 10W 50 Ω 1,9W 6,4W 120 Ω 800mW 2,7W 300 Ω 320mW 1W 600 Ω 160mW 533mW |
| Headphone output impedance table | Unbalanced Balanced |
| 32 Ohm headphone output | 3W 10W |
| 50 Ohm headphone output | 1,9W 6,4W |
| 120 Ohm headphone output | 800mW 2,7W |
| 300 Ohm headphone output | 320mW 1W |
| 600 Ohm headphone output | 160mW 533mW |
| Output impedance | Balanced 0,9 Ohm Unbalanced 0,45 Ohm |
| Frequency response | 2Hz - 200KHz ± 0.5db |
| Input sensitivity | 3,5 VRMS |
| Input impedance | 100KOhm |
| Output polarity | Selectable by remote control |
| Volume regulator | 2 x Burr Brown PGA2310 (180 steps 0,5dB) |
| THD | 0,1% @ 11W |
| S/N ratio | > 100dB |
| Max input voltage | 4,4VRMS |
| Max output voltage | Balanced 20VRMSUnbalanced 10VRMS |
| Preamplifier | Gain9dbPhaseinverting/non-inverting switchOutputs1 balanced XLR1 unbalanced RCA Gain 9db Phase inverting/non-inverting switch Outputs 1 balanced XLR1 unbalanced RCA |
| Gain | 9db |
| Phase | inverting/non-inverting switch |
| Outputs | 1 Pre out stereo line RCA (pre-output phase can be selected)1 Pre out stereo line Balanced XLR1 Connector for jack headphone 6,3mm2 Connector for 4 pin XLR |
| Analogue inputs | 1 Balanced XLR line, 4 unbalanced RCA line |
| Digital inputs | Installation of (optional) HiDac Mk2 board is required to enable these inputs1 USB port type "B" for PC, 1 SPDIF coaxial, 1 SPDIF optical |
| Power consumption | 110W |
| Dimensions | Amplifier 370mm (D) x 280mm (W) x 180mm (H) |
| Weight | 12,5Kg |
| Series | InPoL |