What are the difference in RS150 and RS150B

ROSE Products RS150 & RS150B
#1

So this means the ROSE 150 is better that the B ??

RS150B
RS150
DAC Chip ESS Technology, SABRE ES9038PRO sahi Kasei VERITA AK4499EQ
Output level 6.5Vrms (Balanced),
2.2Vrms (Unbalanced) 9.0Vrms (Balanced), 4.5Vrms (Unbalanced)
THD 0.0002%(Balanced,1KHz 6.5Vrms),
0.0003%(Unbalanced,1KHz 2.2Vrms) 0.0002%(Balanced,1KHz 9.0Vrms),
0.0003%(Unbalanced,1KHz 4.5Vrms)
THD + N 0.0003%(Balanced, 1KHz 6.5Vrms),
0.0004%(Unbalanced,1KHz 2.2Vrms) 0.0003%(Balanced, 1KHz 9.0Vrms),
0.0005%(Unbalanced,1KHz 4.5Vrms)
IMD -103dB (Balanced), -103dB (Unbalanced),
SMPTE 4:1, 60Hz:7kHz -101dB (Balanced), -100dB (Unbalanced),
SMPTE 4:1, 60Hz:7kHz
Signal to Noise Ratio 121dB (Balanced),118dB (Unbalanced),
A-wt 120dB (Balanced), 117dB (Unbalanced),
A-wt
Dynamic Range Max 132 dB (CCITT filter) Max 132dB (CCITT filter)
Stereo Crosstalk Max -138dB, 20-20kHz Max -138dB, 20-20kHz
Output Frequency Response 20Hz to 20,000(+/-0.5dB) 20Hz to 20,000 (+/-0.5dB)
Output Impedance 50Ω 100Ω

#2

Hello @Engelsione ,

Not only they are very close, spec wise, it’s a matter of personal taste (the different DACs) although more important is the fact that the Kasei DAC could not be delivered anymore due to a big fire in their plant last year, at least that is what I read about it. So I don’t think you can find the RS150 anymore, they are all RS150Bs now.

@ROSELOA is the supply chain from Kasei restored yet? Or do you stick with the Sabre DAC for the RS150?

#3

Hello,

I heard that kasei chip production will resume, but there are currently no plans to re-produce the RS150.