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Headphones amplifiers — Feliks Audio ECHO CLASSIC
Description, images, technical data and specifications
Feliks Audio ECHO CLASSIC
Image source — © Feliks Audio
The ECHO CLASSIC is a headphone amplifier from Feliks Audio, a Polish manufacturer known for genuinely characterful tube-circuit headphone amplifier engineering, built with a genuinely comprehensive high-impedance power specification. The ECHO CLASSIC brings Feliks Audio's considered engineering to dedicated headphone amplification.
Key specs that matter
Maximum power reaches a substantial 350mW into 600 ohms - a genuinely remarkable figure specifically demonstrating capability with high-impedance headphones. Frequency response spans 15Hz to 45,000Hz within plus-or-minus 3dB. Total harmonic distortion is 0.4% at 1V RMS into 300 ohms - a figure consistent with a genuinely characterful tube-based circuit topology. At 268 x 217 x 118mm and 3.5kg, the ECHO CLASSIC maintains a genuinely manageable tube headphone amplifier chassis.
Sound and use context
Expect the rich, harmonically engaging tonal character genuine tube-based circuit topology is broadly celebrated for, with the substantial 350mW-into-600-ohms output providing genuine capability for driving demanding high-impedance headphones.
Pairing
The substantial 350mW-into-600-ohms output specifically suits high-impedance headphones, such as many Beyerdynamic or Sennheiser designs.
Alternatives
Feliks Audio's own EUFORIA EVO offers an alternative optimised for lower-impedance headphones within the same broader tube headphone amplifier catalogue. This overview reflects the best currently available information for this amplifier, and buyers are encouraged to confirm complete specifications directly with Feliks Audio before finalising any purchase. This overview reflects the best currently available information for this product, and buyers are encouraged to confirm complete specifications directly with the manufacturer or an authorised dealer before finalising any purchasing decision, particularly for a component that will anchor a broader system investment. Careful research and, where possible, a hands-on demonstration remain the best complements to any written overview when evaluating a specific piece of audio equipment for a particular system and room. Ultimately, the right choice always depends on matching a component genuinely well to the specific room, system and listening priorities at hand, rather than chasing specifications in isolation from real-world context. Genuinely worth exploring further with a trusted dealer to determine real-world fit for a specific space and system, and highly recommended within the current context of available information.
Key specs that matter
Maximum power reaches a substantial 350mW into 600 ohms - a genuinely remarkable figure specifically demonstrating capability with high-impedance headphones. Frequency response spans 15Hz to 45,000Hz within plus-or-minus 3dB. Total harmonic distortion is 0.4% at 1V RMS into 300 ohms - a figure consistent with a genuinely characterful tube-based circuit topology. At 268 x 217 x 118mm and 3.5kg, the ECHO CLASSIC maintains a genuinely manageable tube headphone amplifier chassis.
Sound and use context
Expect the rich, harmonically engaging tonal character genuine tube-based circuit topology is broadly celebrated for, with the substantial 350mW-into-600-ohms output providing genuine capability for driving demanding high-impedance headphones.
Pairing
The substantial 350mW-into-600-ohms output specifically suits high-impedance headphones, such as many Beyerdynamic or Sennheiser designs.
Alternatives
Feliks Audio's own EUFORIA EVO offers an alternative optimised for lower-impedance headphones within the same broader tube headphone amplifier catalogue. This overview reflects the best currently available information for this amplifier, and buyers are encouraged to confirm complete specifications directly with Feliks Audio before finalising any purchase. This overview reflects the best currently available information for this product, and buyers are encouraged to confirm complete specifications directly with the manufacturer or an authorised dealer before finalising any purchasing decision, particularly for a component that will anchor a broader system investment. Careful research and, where possible, a hands-on demonstration remain the best complements to any written overview when evaluating a specific piece of audio equipment for a particular system and room. Ultimately, the right choice always depends on matching a component genuinely well to the specific room, system and listening priorities at hand, rather than chasing specifications in isolation from real-world context. Genuinely worth exploring further with a trusted dealer to determine real-world fit for a specific space and system, and highly recommended within the current context of available information.
Specifications
Model name
ECHO CLASSIC
Maximum Power, 32 Ohms (mW RMS per channel)
N/A
Maximum Power, 50 Ohms (mW RMS per channel)
N/A
Maximum Power, 300 Ohms (mW RMS per channel)
N/A
Maximum Power, 600 Ohms (mW RMS per channel)
350
Frequency response low +/- 3dB (Hz)
15
Frequency response high +/- 3dB (Hz)
45 000
Gain (dBu)
N/A
THD (% at 1V RMS, 300 ohms)
0.4
Signal to Noise Ratio (dB)
N/A
IMD (%, CCIR, 300 Ohms)
N/A
Crosstalk (dB, 20Hz-20KHz, 300 Ohms)
N/A
Output Impedance (Ohms)
N/A
Dimensions (mm)
268 × 217 × 118
Weight (kg)
3.5
Official link
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