Replaced OPA2134 and OPA2604 chips in my Music Hall DAC 25.3. Since it comes with standard 8 pin DIP sockets, installation took only minutes carefully observing orientation. The V5s definitely elevate the performance in many subtle ways. You hear more inner detail without any false brightness. There’s better focus with voice and instruments. You’re better able to follow rhythms in the background. Very nice results for a modest cost.
The System
Listening with
Music Hall dac25.3 · DAC with tube (6922) single-ended output and headphone amp · discontinued
- Frequency response: 2 Hz – 20 kHz (±0.2 dB)
- Output impedance: 0.3 Ω (headphone)
- Output voltage: RCA 2.0 V · XLR 2.0 V (single “output level” figure published)
- Inputs: coaxial; optical; AES/EBU (XLR); USB (24/96)
- Outputs: RCA (tube); XLR (solid-state balanced); 6.35 mm headphone (4 V max, 0.3 Ω)
- DAC / chipset: TI / Burr-Brown PCM1796; TI SRC4192 ASRC (96 / 192 kHz upsampling)
- Other: THD+N <0.04% tube / <0.0015% balanced (1 kHz); SNR >110 dB; dynamic range >120 dB (24-bit); crosstalk <-110 dB; <30 W
[1] [2]
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)
[3]
Also in the system
OPA2134 · Dual operational amplifier
- Operating voltage: ±2.5 V to ±18 V (recommended)
- Supply voltage: 36 V single-supply absolute maximum
- Gain-bandwidth product: 8 MHz typ
- Dual or single: dual
- Package: SOIC-8; PDIP-8
[4]
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
[5]
