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320 pF is crazy high, but I could not find any capacitance information anywhere..
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Parks Audio Waxwing measurements
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watchnerd
Grand Contributor
Wouldn’t it be just as simple as using a phono stage with lots of headroom and the waxwing as line in DSP box ..
just a suggestion for everyone that is complaining about the lack of headroom.
I've started playing with this using my Puffin.
Using it as a headamp with only 24 dB of gain for MC carts, no RIAA eq, and DSP tools.
Same for MM carts, but with 0 db of gain.
watchnerd
Grand Contributor
I asked their support years ago when I was purchasing for more info on the specs of the phono stage. From email:
"Luxman factory specifications for both L-509x and L-590aXII are identical as follows:
- Input Capacitance = 320pF (fixed, non-adjustable)
- MM input impedance = 47k Ohms (fixed, non-adjustable)
- MM input sensitivity = 2.5 mV (nominal average) for full amplifier output.
- MC input impedance = 100 Ohms (fixed, non-adjustable, suitable for MC cartridges having an ~approximate~ internal coil impedance range of 3- 40 Ohms)
- MC input sensitivity = 0.3 mV (nominal average) for full amplifier output."
SME also said, re: the cable that came with my M2-9R:
"The arm lead capacitance for this arm is 58pF"
So that means 378 pF loading that is unavoidable if I use traditional MM route.
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watchnerd
Grand Contributor
Found the thread. It was discussed around this post: https://www.audiosciencereview.com/.../phono-preamp-headroom-why.56265/post-2066165
watchnerd
Grand Contributor
Perhaps I'm misunderstanding what you're asking, but that seems to reiterate that (for MC carts) changing the loading doesn't do anything meaningful, electro-mechanically.
So I understand that, too, but there were different opinions in the discussion (that I, to be honest, don't understand completely in all technical aspects
).
watchnerd
Grand Contributor
So I understand that, too, but there were different opinions in the discussion (that I, to be honest, don't understand completely in all technical aspects
The test data in the recent Stereophile article on loading backs up the theory that MC loading changes to R doesn't do much except change the output level.
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I have measured MC with internal resistance if 12 ohm ATOC9MLii and found noe change in response apart from revel reduction at lower R, distortion and crosstalk and tracking unchanged too.
Edit
47k increased noise level.
Edit
47k increased noise level.
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Effect of loading on MC cartridges.
Post in thread 'Ultrasonic ringing in low output MC cartridges'
https://audiosciencereview.com/foru...n-low-output-mc-cartridges.58099/post-2125633
Post in thread 'Ultrasonic ringing in low output MC cartridges'
https://audiosciencereview.com/foru...n-low-output-mc-cartridges.58099/post-2125633
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Parks Audio Waxwing input capacitance is 50pF, confirmed by a Shannon Parks , same as Puffin.
I was reading about this device, it costs 499.
My question is simple (maybe)... I have an EVO 150 and an MC 6800 (Mcintosh), both of which have phono inputs.
If I put this device between them, in the case of the MC6800, I would connect it to an RCA input, and on the EVO, I could use the optical output.
Would this investment be worth it?
My question is simple (maybe)... I have an EVO 150 and an MC 6800 (Mcintosh), both of which have phono inputs.
If I put this device between them, in the case of the MC6800, I would connect it to an RCA input, and on the EVO, I could use the optical output.
Would this investment be worth it?
Yes and no: you have phono input so don't really need it.
But if you want to reduce clicks and pops , or adjust the sound to your likes, this gear will be your friend.
If you listen to records often and want to make them sound almost as good as CDs, then yes, it is worth it. It does a great job of removing almost all surface noise, clicks and pops.
That's really good to know. I was thinking more about digitizing some records, but now that this device can do that, it's great for listening to old records... it's like reducing noise in photography... another device was recommended... which would be this one:
www.minidsp.com
$200 cheaper... would it do the same job as the Waxwing?
ADept
The miniDSP ADept is a compact high-resolution A/D (analog-to-digital) convertor that accepts single-ended (RCA) or balanced (on XLR) audio signals. The digital output is available on SPDIF coaxial and TOSLINK optical connectors, and can also be recorded to a computer or mobile device via the...
$200 cheaper... would it do the same job as the Waxwing?
That's really good to know. I was thinking more about digitizing some records, but now that this device can do that, it's great for listening to old records... it's like reducing noise in photography... another device was recommended... which would be this one:
ADept
The miniDSP ADept is a compact high-resolution A/D (analog-to-digital) convertor that accepts single-ended (RCA) or balanced (on XLR) audio signals. The digital output is available on SPDIF coaxial and TOSLINK optical connectors, and can also be recorded to a computer or mobile device via the...
$200 cheaper... would it do the same job as the Waxwing?
I'm not familiar with the minidsp.
https://www.audiosciencereview.com/.../minidsp-adept-adc-phono-preamp-review.65333/That's really good to know. I was thinking more about digitizing some records, but now that this device can do that, it's great for listening to old records... it's like reducing noise in photography... another device was recommended... which would be this one:
ADept
The miniDSP ADept is a compact high-resolution A/D (analog-to-digital) convertor that accepts single-ended (RCA) or balanced (on XLR) audio signals. The digital output is available on SPDIF coaxial and TOSLINK optical connectors, and can also be recorded to a computer or mobile device via the...
$200 cheaper... would it do the same job as the Waxwing?
could be a link
As said before: you have a phono input at your gear, and any other (excellent) preamp like the adept or others tested here will do the same.
But the filtering and equing is pretty unique to the Parks.
Both will do digital RIAA EQ and gain. Otherwise, the MiniDSP does not have as extensive a feature set as the Waxwing. For example, it doesn’t have the Magic feature (click and pop removal), phase, tone, PEQ, effects options, or as precise control over loading and capacitance, azimuth tools, speed calibration tools, etc. However, the MiniDSP’s measured performance for noise, frequency response, etc., is better. It’s really a question of what you want.That's really good to know. I was thinking more about digitizing some records, but now that this device can do that, it's great for listening to old records... it's like reducing noise in photography... another device was recommended... which would be this one:
ADept
The miniDSP ADept is a compact high-resolution A/D (analog-to-digital) convertor that accepts single-ended (RCA) or balanced (on XLR) audio signals. The digital output is available on SPDIF coaxial and TOSLINK optical connectors, and can also be recorded to a computer or mobile device via the...
$200 cheaper... would it do the same job as the Waxwing?
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