Trung’s Burson V5 Opamp with TRU technology b4100

Published on

Carlos G
May 6, 2016

Post Info

Feedbacks - V5 SS Opamp
TRU technology b4100

Upgrading a car amplifier (TRU technology b4100s and only to the optional S-module preamp card.) Stock opamps were 3x OP275. Did a factory upgrade to OPA2604 then did a DIY upgrade to OPA627AU, then upgraded all the caps to WIMA MKS2 and Elna Silmic II, then upgraded to SS-Audio v4 and now v5 discrete op-amps.

Every upgrade has improved the sound drastically until doing the v4 to v5 upgrade. Similar overall sound but very different details. The v4 and v5 are already so much better than OPA627 but just comparing the v5 and v5, the v4 gives me the impression of more dynamic and lively vocals, warmer mids, wider sound stage and an overall pleasant airyness. Definitely awesome. The v5 has a deeper stage, smoother and more transparent sound so it leans more toward a reference sound.

Can’t say which one I really like more but more of the time I’ll pick the v5’s more reference sound.

Trung D.

The System

Listening with

TRU technology b4100

Burson

Burson V5 Opamp · Discrete opamp (single / dual) · discontinued

Supply voltage: ±3.5 V to ±15 V (absolute maximum)
Gain-bandwidth product: 50 MHz (at 100 kHz)
Dual or single: dual and single
Package: 14.5 mm wide × 12.4 mm deep × 29 mm high (V5-OPA-D)

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Also in the system

OP275 · Dual operational amplifier

Supply voltage: ±4.5 V to ±22 V; ±22 V absolute maximum
Gain-bandwidth product: 9 MHz typ
Dual or single: dual
Package: SOIC-8; PDIP-8

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OPA2604 · Dual operational amplifier

Supply voltage: ±4.5 V to ±24 V (recommended); ±25 V absolute maximum
Gain-bandwidth product: 20 MHz
Dual or single: dual
Package: SOIC-8; PDIP-8

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OPA627 · Operational amplifier

Supply voltage: ±4.5 V to ±18 V (recommended); ±18 V dual-supply absolute maximum
Gain-bandwidth product: 45 MHz typ (OPA627AU/BU, gain = 1, CL = 30 pF); 16 MHz typ (OPA627AM/BM/SM)
Dual or single: single
Package: SOIC-8; TO-99

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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.