View Full Version : Mills MRA12 or Mundorf M-Resist Supreme?
i must upgrade my crossover filter.
the caps i'll use are ClarityCap CMR, but i have doubt on the sound of the following resistors:
- mills MRA12
- mundorf m-resist supreme
thank you for your answer
bye :)
Both are pretty much the same i.e. they both employ a bifilar winding structure, so have inductance-cancelling effects. Personally I would go for the Mills because they are true mil-spec resistors, lack the marketing babble, and are a bit cheaper - also seem to use more copper.
thank you for your reply:)
do you compare them ?, what are sound differences ?
when you say that mills use more copper what do you mean ?
thank you
thank you for your reply:)
do you compare them ?, what are sound differences ?
when you say that mills use more copper what do you mean ?
thank you
Oops, did some research, both use copper construction, both are non-magnetic, both use bifilar winding. I've used Mills before & had no issues, for the price, you could compare both, but looking at how similar they are I highly doubt you'll be able to hear any difference between them at all. That the Mills are mil-spec means they have been objectively tested in extremely demanding environments.
Mills are more than Fine . IMO already Overkill for purpose resistors.
I have them.. although in All honesty they made Zero audible difference over the oem Tannoy resistors.
A while back I went and listened.. to an aquaintance that gleefully replaced all the resistors in his HPD crossovers with Duelunds.
Had to, as he wouldn't shut up about how good they were.
They weren't sounding great at all.. then noticed the effing fool had bungled the rewire of his crossovers... so much for the improved sounds :doh:.
Belief supplants logic.. most every time.
IMO at least: Fair chunk of change pointlessly applied.
no one heard mundorf mresist supreme ?
hey guys, about your point of view do resistors need breakin period or no ?
In fact it seemed strange to me.
O.T.
and for caps ?
walpurgis
26-05-2017, 22:28
No, they don't.
I agree. For a resistor to 'break in' would suggest a change of state. Not something you'd want in a resistor.
Capacitors can seem to take a little while to fully form, particularly if very low current is being passed. Not inductors or resistors though and most 'burning in' is either heavily exaggerated or psychosomatic (i.e. It's the listener that is going through the subjective change and not the component).
thank you guys.
certainly mills mta12 are very high value for money but i hope someone tested and used mundorf m-resist supreme.;)
Persistent viewpoints.. Boutique parts make small (some argue No changes) improvements. Certainly nothing comensurate with Coinage expenditure involved
Want a genuine improvement ? improve the Circuit :eyebrows:
guys, what do you think about mox resistor jantzen and mundorf compared to mills mra12?
are more different in sound ?
Moore, seems to me like you'd like to buy and compare for yourself. :)
At this sort of level of resistor am doubtful you'll hear anything, as has been mentioned, but at the same time better to listen!
just in these days i compared :
- mundorf m-resist supreme
- mills mra12
- jantzen superes
- jantzen mox
- carbon 10 (parallel resistors)
the changes in axb test are very audible.
I therefore advise you to abandon your skepticism and to try it too: I have followed your advice and you?....
And so.... what were your findings?
my apologies, but If yomanze and you do not believe that can't be change anything, there is no point in telling my experience, i hope you understand.
the only thing is try it by yourself, then we could discuss about changes :)
You asked about whether resistors 'burned in', not whether they had different sonic signatures in the first place. Yomanze commented that he felt there would be little audible difference between resistors, but my comments related to the concept of 'burn in' for resistors. However, if you don't want to share your thoughts then that's fine.
i'm sorry but in my first message was clear that i'm intrested to sound differences, burn-in is a secondary question infact it isn't in my first message :)
also i want share my esperiences, sure, but would be better if you try to compare by yourself saome resistors like me
Are you intentionally being pedantic? Read your own post #7 and then read my response to that post. My comments have nothing to do with your original post!
(No, your 'message' is not clear!)
The Black Adder
01-06-2017, 07:00
Mills are great... Mundorf are also equally as good. So IMO it's whatever will fit best and your budget.
I personally use Duelunds but I've also used Mills a lot and they suit many perfectly fine. I've also used Path resistors, they are great too.
Are you intentionally being pedantic? Read your own post #7 and then read my response to that post. My comments have nothing to do with your original post!
(No, your 'message' is not clear!)
ok, i'm sorry.
i corrected my fisrt message (i hope now is ok), but i'm sure that if someone has compared those resistors, had written his opinion. :)
Mills are great... Mundorf are also equally as good. So IMO it's whatever will fit best and your budget.
I personally use Duelunds but I've also used Mills a lot and they suit many perfectly fine. I've also used Path resistors, they are great too.
hi josie,
could you write me in what differs duelund vs mills ?
thank you:)
The Black Adder
01-06-2017, 07:13
I find the Duelunds reveal more, clarity and delicacy.
They come in two types but the cheaper types (not cast) are perfectly fine. Cast types are for the connoisseur I suppose.
Duelunds are the cream of the crop IMO so it depends on your budget. Mills will do for the majority and are much better than conventional resistords so no matter what, Mills are still head and shoulders above say white coffin types.
thank you :)
i hope also someone has tried mundorf m-resist supreme, may be later
So you want TBA to explain the differences he has heard but are not prepared to state your own findings? Also, I am interested to hear what precise A/B/X methodology you employed?
i'm sorry, i can't help you: i don't like aprioristic criticism.
about axb test you could see AES paper.
bye
I know what an ABX test is - I was asking how exactly yours was structured? If you did do this ABX test what was the test rig you used to perceive the differences? As you are unwilling to share your findings (though you are happy for others to share theirs) I will assume no test was carried out and you actually have no findings to express.
You don't like logical criticism? A truly bizarre approach but, as you appear to have a fetish for expensive ephemera, (apparently for the sake of it) not surprising!
like the one suggested by the paper
I find the Duelunds reveal more, clarity and delicacy.
They come in two types but the cheaper types (not cast) are perfectly fine. Cast types are for the connoisseur I suppose.
Duelunds are the cream of the crop IMO so it depends on your budget. Mills will do for the majority and are much better than conventional resistords so no matter what, Mills are still head and shoulders above say white coffin types.
for Shame.
In crossover applications I have experience of the Jantzen MOX and Mills MRA12 in the same circuits (several).
I consistently found the MOX slightly grainy compared with the Mills but with a neutral tone. The mills are smoother, some think overly so, so not quite as crisp, but much depends on the circuit and ancillary equipment. I find the differences in resistors to be very very small compared with changes to caps in a passive crossover.
At the end of the day you have to use the type which you prefer in your particular set up, unless folks are using exactly the same set up, their results and expectations may differ to yours, but don't expect miracles.
As for resistor burn in, minimal if any, I find any change of parts needs a few hours to settle due to soldering of joints and heating of parts. I've never experienced more than this with resistor swapping.
thank you for your reply, ken
about mox vs mills mra i found the same differences you write. ;)
i more like the mills
p.s.
copmpliments for your site:
- very intresting cap burn-in device :interesting:
- semi active project
- cambridge phono update
Thanks, I just keep adding projects to my blog site, quite a few racked up over the last few years.
For crossover use I tend to start with cheaper MOX or even Ceramic resistors for development and switch to Mills once the values are established.
Even the Mills are getting expensive and you have to watch which tolerance band the supplier is selling. HFC in the UK sell +/- 5%, if I want closer matching I have to get them from Sonic Craft in the USA (+/-1%).
I can recommend their Sonicap Gen 1 (PP film caps) for top end in a passive crossover, cleanest most detailed top end I've heard without spending silly money. Can also work in the mids and bass, but system dependent, so can sound too bright and lean with the wrong match.
I've spent a lot on caps for crossover experimenting over the years, I am using analogue active now, were I spend as much on Op Amps :rolleyes: and just taking my first tentative steps into digital active (Hypex DLCP).
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