Can Wiim Ultra work on a Grado Moving Iron cartridge?
- Thread starter bsacco335
- Start date
Brantome
Major Contributor
- Joined
- Oct 20, 2022
- Messages
- 6,842
This is primarily a user forum that WiiM dip in and out of. If you want a direct answer from the horse’s mouth then either use the settings/feedback route in the WiiM Home app or via the email address on their contact page.
Contact Us - WiiM
www.wiimhome.com
Brantome
Major Contributor
- Joined
- Oct 20, 2022
- Messages
- 6,842
The phono stage spec can also be found in the ultra faq at https://faq.wiimhome.com/support/solutions/articles/72000630074-wiim-ultra-questions-answers
Viz.
Gain: 41dB MM / 59dB MC
MM: THD+N -75dB，SNR 76dB@5mV;
MC: THD+N -58dB,SNR 56dB@0.5mV
RIAA accuracy: < ±0.5dB / 20Hz - 20kHz
Viz.
Gain: 41dB MM / 59dB MC
MM: THD+N -75dB，SNR 76dB@5mV;
MC: THD+N -58dB,SNR 56dB@0.5mV
RIAA accuracy: < ±0.5dB / 20Hz - 20kHz
slartibartfast
Major Contributor
- Joined
- Apr 18, 2024
- Messages
- 3,219
Don't they mention Cartridge Load Impedance? That is fairly important.
If you have Amazon in your country, you could ask questions directly to the official WiiM store.
Meet WiiM Ultra - The Digital Hub for Your Music
I have three questions about the Ultra. 1) I own a Pro Plus currently, is there an audible upgrade if I move to the Ultra? 2) My turntable has a Moving Iron cartridge by Grado Labs. Does the Ultra provide enough signal for this cartridge? And will it sound as good as my ART DJ II Turntable...
forum.wiimhome.com
This has not been deleted.
MM load resistance is standardised at 47 kohms anyway. Deviating from that would mean violating the standard. MIs have to fit the same pattern as there are no distinct MI phono pre-amps.
Knowing the input capacitance would be very helpful, but unfortunately WiiM did not publish this (yet). From my experience Grado MIs unfortunately are just as sensitive to a too high input capacitance as many MMs (e.g. Audio-Technica). Too high values lead to a big hump in the upper highs, but steep loss of output level above this hump.
MC cartridges are a different topic. Not sensitive to input capacitance, but some need more electrical damping (lower input resistance), some need less (higher input resistance) to perform at their best. As of now, the sensitivity of the Ultra's phono in gain can be increased but we don't know if the input resistance is fixed at 47 kohms.
Yep, I never heard back from them...This is primarily a user forum that WiiM dip in and out of. If you want a direct answer from the horse’s mouth then either use the settings/feedback route in the WiiM Home app or via the email address on their contact page.
Contact Us - WiiM
Yep, what? You did what "and never heard back from them?
You got the answer to your question within 3 hours on this user forum. Isn't that good enough for you?
Geoduck
New member
- Joined
- Jul 27, 2024
- Messages
- 3
When you request support be specific using the fewest words for best results. Give them a little time this is a new product.
As more individuals get onboard problems like yours will get answers.
Have you tried any of the suggestions made here?
