Feliks Audio Echo Classic – Level Audio

At a glance

Device type
Tube headphone amplifier
Amplifier technology
Tube
Headphone outputs
6.3 mm
Built-in DAC
No
Power
350 mW @ 300 Ω (OTL)

All technical data

Feliks Audio

Feliks Audio Echo Classic

Feliks Audio Echo Classic – handcrafted tube headphone amplifier from Poland. Warm, natural sound, 350 mW output, ideal for 80–600 Ω headphones.

Feliks Audio
FEL-ECHO-CLASSIC
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€699.00
Tax included

On orderDelivery usually 1–2 weeks

EU GARAN label Manufacturer’s durability guarantee: 3 years from the date of purchase, tubes 6 months
On order

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At a glance

Device type
Tube headphone amplifier
Amplifier technology
Tube
Headphone outputs
6.3 mm
Built-in DAC
No
Power
350 mW @ 300 Ω (OTL)

All technical data

Feliks Audio Echo Classic

Pure tube experience

The Feliks Audio Echo Classic captures everything that makes the Echo series so beloved — in its purest form. As an entry-level tube amplifier, it delivers Feliks Audio’s signature musical warmth and craftsmanship — no gimmicks, just pure sound.

Feliks Audio Echo Classic view

Musical, smooth, and balanced

Echo Classic offers an organic, full-bodied sound with rich mids, structured bass, and silky highs. Vocals and instruments feel alive and authentic — warm, yet never veiled. Ideal for long listening sessions where musicality matters more than sterile precision.

Power & compatibility

With 350 mW of output power and low distortion (0.4% at 300 Ω, 20 mW), Echo Classic confidently drives headphones from 80 to 600 Ω — from dynamic classics to high-end models.

Handcrafted in Poland

Every Echo Classic is built in Poland with precise handcrafting. Feliks Audio focuses on longevity, clean design, and uncompromising sound — true to a brand that has set standards in tube amplification for years.

Purist design

No unnecessary extras — no preamp out, no effects. Just pure, uncolored tube sound, distilled to the essentials. An amplifier for music lovers who seek honesty, naturalness, and emotional depth.

Technical Specifications

Power tubes 1 pair
Driver tubes 1 pair
Input impedance 100 kΩ
Frequency response 15 Hz – 45 kHz (+/– 3 dB)
Output power 350 mW
Gain 20 dB
THD 0.4 % (300 Ω, 20 mW)
Recommended headphone impedance 80 – 600 Ω
Headphone output 6.35 mm jack

Included Accessories

  • Handcrafted Echo Classic tube amplifier
  • 1 pair of driver tubes
  • 1 pair of power tubes
  • Power cable
  • User manual
  • Warranty card
FEL-ECHO-CLASSIC

Data sheet

Device type
Tube headphone amplifier
Amplifier technology
Tube
Built-in DAC
No
Power into 300 Ω
350 mW @ 300 Ω (OTL)
Headphone outputs
6.3 mm
Balanced output
No
Inputs
RCA
Pre-amp output
No
Weight
3.5 kg
Product type
Headphone amplifier

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