FiiO A5 headphone amp upgrade with Burson Discrete V5i opamp

Published on

Sales Burson
July 28, 2020

Post Info

Feedbacks - V5i SS Opamp
FiiO A5

Mid and low improved, more soundstage, the opamp fits perfectly

The System

Listening with

FiiO A5 · Headphone amp: portable headphone amplifier

Frequency response: 10 Hz – 90 kHz (-3 dB, input 220 mV)
Output impedance: <0.3 Ω
Gain: 0 dB (low); 13 dB (high)
Inputs: 3.5 mm
Outputs: 3.5 mm
Other: output power >800 mW (32 Ω, THD<1%); >=150 mW (300 Ω, THD<1%); THD+N <0.002% (1 kHz); SNR >=115 dB (A); recommended load 16-300 Ω; battery 880 mAh, >=13 h

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Burson

Burson V5i Opamp · Discrete opamp (single / dual) · current

Supply voltage: ±5 V / 10 VDC to ±16 V / 32 VDC (absolute maximum)
Gain-bandwidth product: 50 MHz (at 100 kHz)
Dual or single: dual and single
Package: 11 mm wide × 11 mm deep × 7.3 mm high

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Also in the system

NJR/Nisshinbo MUSES02 · Dual operational amplifier

Operating voltage: ±3.5 V to ±16 V
Supply voltage: ±18 V (absolute maximum)
Gain-bandwidth product: 11 MHz typ (at 10 kHz)
Dual or single: dual
Package: DIP8

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Specs from manufacturer data unless a source below says otherwise. “calc.” values are worked out from those figures (V = √(P × R); 110 dB SPL used as a loud reference level). Gear listed without specs is not in our spec library yet.