RME ADI-2/4 Pro SE - RIAA mode measurements

[Erogen]

The connection is as follows:
Moving Coil Cartridge - 0.14 mV (6 Ohms)
Ortofon Step-Up T-30, 6 Ohm Setting: Gain 29 dB (approx. 1:28 ratio).
0.14 mV x 28 = 3.92 mV
RME Mode/Gain Setting + 32 dB
Unfortunately, you can hear hiss when the stylus is lifted from the record.
With this setting, the RMS level of the record is only -22.4 dB.
This is not good.
Does it need to be changed?
Is the cartridge level too low?

 

[Erogen]

Changing the MC cartridge to 0.4 mV (6 Ohm)
Measurement with the JP script, equalizing channel crosstalk (5 measurements ), correcting the frequency response to make it as linear as possible (RME parametric equalizer) (4 measurements )
Ortofon T-30
Ortofon Step-Up T-30, 6 Ohm Setting: Gain 29 dB (approx. 1:28 ratio)
0.4 mV x 28 = 11.2 mV (!)
RME Mode/Gain Setting + 26 dB

Yes, I know the 11.2 mV level is very high, but this vinyl record is pressed very quietly.

For me it's ok.

 

[Balle Clorin]

Changing the MC cartridge to 0.4 mV (6 Ohm)
Measurement with the JP script, equalizing channel crosstalk (5 measurements ), correcting the frequency response to make it as linear as possible (RME parametric equalizer) (4 measurements )
Ortofon T-30
Ortofon Step-Up T-30, 6 Ohm Setting: Gain 29 dB (approx. 1:28 ratio)
0.4 mV x 28 = 11.2 mV (!)
RME Mode/Gain Setting + 26 dB

Yes, I know the 11.2 mV level is very high, but this vinyl record is pressed very quietly.

View attachment 516748

View attachment 516755


For me it's ok.

Sorry but such plots do not tell me much of what is going on , apart from the level, some other presentation will be more useful
Vinyl signal to noise in music records is at best 60db, but one test record I have is -72db.

At 60db gain obtained by MC gain or 40 MM gain + 20db from my SUT gives no audible hiss nor hum on my 0.3 mV cartridge. Noise from from RIaa is about -85db off the record turntable running , relative to 2.1V .
If you have hiss off the record your gain may be too large somewhere or amp too noisy, or speakers very sensitive..or cartridge output too low for your system

 

[Erogen]

Sorry but such plots do not tell me much of what is going on , apart from the level, some other presentation will be more useful
Vinyl signal to noise in music records is at best 60db, but one test record I have is -72db.

At 60db gain obtained by MC gain or 40 MM gain + 20db from my SUT gives no audible hiss nor hum on my 0.3 mV cartridge. Noise from from RIaa is about -85db off the record turntable running , relative to 2.1V .
If you have hiss off the record your gain may be too large somewhere or amp too noisy, or speakers very sensitive..or cartridge output too low for your system

I don't have speakers, I don't have an amplifier
I only use RME 2/4 and headphones

Count again

Moving Coil Cartridge - 0.14 mV (6 Ohms)
Ortofon Step-Up T-30, 6 Ohm Setting: Gain 29 dB (approx. 1:28 ratio).
0.14 mV x 28 = 3.92 mV
RME Mode/Gain Setting + 32 dB
Unfortunately, you can hear hiss when the stylus is lifted from the record.
With this setting, the RMS level of the record is only -22.4 dB.
This is not good.

 

[JP]

Dynamic content typically targets about -18dB. Regardless, at 24bit you have more than enough room to play with that should be penalty-free, and beyond simple to do in post.

Your noise issue isn't the RME, and the RME can't solve it for you no matter how it's engineered. Your signal is noisy and your gain staging likely not optimized.

 

[Erogen]

Dynamic content typically targets about -18dB. Regardless, at 24bit you have more than enough room to play with that should be penalty-free, and beyond simple to do in post.

Your noise issue isn't the RME, and the RME can't solve it for you no matter how it's engineered. Your signal is noisy and your gain staging likely not optimized.

Not -18 dB, but -22 dB

The connection is as follows:
Technics 1200GR2 > Moving Coil Cartridge - 0.14 mV (6 Ohms) > Ortofon Step-Up T-30, 6 Ohm Setting: Gain 29 dB (approx. 1:28 ratio).
0.14 mV x 28 = 3.92 mV > RME Mode/Gain Setting + 32 dB
Digital Trim 0 dB
With this connection, the RMS of the recorded signal is only -22 dB.
When no music is playing, with the tonearm raised above the record, the signal level with this connection is around -60 dB. It's very noisy and unusable.

 

[JP]

Again, this is not an RME problem, it's a noise in your setup problem.

 

[Erogen]

it's a noise in your setup problem.

What is the configuration error?