William’s Burson V5i Opamp with Polk Audio RTiA9

Published on

Sales Burson
November 6, 2021

Post Info

Feedbacks - V5i SS Opamp
Chinese (CHI-FI) single-ended tube integrated amplifier, Musical Fidelity, Pioneer 7.1, Topping D50s DAC

The V5i D is for the Topping D50s. Previously I was using MUSES02 in it. After switching to V5i D I swear it right away sounded more “Vinyl” and much warmer than MUSES. I also find the soundstage deeper but not exaggerated and defined. Over all I am very happy with it.

The System

Listening with

Polk Audio RTi A9 · Speakers: floorstander, three-way · discontinued

Impedance: 8 Ω
Sensitivity: 90 dB (1 W / 1 m)
Frequency response: 18 Hz – 27 kHz (overall); 30 Hz – 26 kHz (-3 dB)
Recommended amplifier power: 50 – 500 W
Other: crossover 120 Hz / 1.8 kHz; three 7 in woofers; two 5.25 in midranges; 1 in tweeter

^[4]

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 (this post uses the dual)
Package: 11 mm wide × 11 mm deep × 7.3 mm high

^{[1] [2]}

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

^[3]

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.