I swapped two plateresistors (HRM-build V2) from CF to Vishay Dale RN65's and between recordings just turned the amp off and soldered the two RN65's in. I did not change any setting or anything.
I recorded the clips with SM57 trying to maintain as much as possible the same feel and touch + was sitting on exact same position on the clips.
The order of the resistors on the samples are x,y,x,y,x,y - same take 3 times on both type resistors.
So the question is which is cf and which is rn65 ?
x= ?
y= ?
Can You hear it ? I was surprised that the difference was so clear. Listen loud
I'll leave it about a week or so for You to answer
I edited my post since I want to listen on my studio monitors. I will say that I definately hear a difference between X and Y. Quite clear actually and I am only listening on a Dell Inspiron Laptop with crappy 1 inch speakers!
Last edited by dogears on Sat Jun 30, 2007 4:50 pm, edited 2 times in total.
Man o man, that's subtle Mat. I can usually tell. I listened with headphones and maybe just don't have the ears for it anymore. I listen for granularity mostly and don't hear a great deal of difference.
Good test.
DanH
The Last of the World's Great Human Beings
Seek immediate medical attention if you suddenly go either deaf or blind.
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Ok, I just listened loudly on my Dynaudio BM5A monitors.
The Y resistors had a much clearer top end. The "chirp" was more pronounced and more pleasant. They are definately brighter and more articulate.
On my laptop, I thought the X resistors may have been preferrable, but on my nice studio monitors, it is quite obvious which resistors have the nicer high frequency response.
Y seems to have better high-end overtones and a nicer, clearer pick attack. Honestly, though, I think both sound since. I'd go with Y if I had to choose.
On my small laptop monitors X sounds a bit more ¨round¨, ¨deeper¨, ... well, and the Y sounds ¨tighter¨ and a bit ¨brighter¨. Since monitor speakers are rolling off below 200 Hz, that is not a good monitoring situation at all for THIS type of judgement.
The usual story is that X would be CC and Y would be CF, but one shold really think of CF 1% resistors as more precise in terms of tolerance and technical quality overall, and that would be just about it for me. I do not believe in ¨resistor magic¨.
If it means anything to this builder, if it is accepted, the recommendation from these quarters is to use RN65 or similar quality CF 1% resistors.
Sound of the clip from another thread is so much better than previous clips from this month. It looks like a great progress, indeed.
With a quick listen through cheap headphones I'd say x1,x2,x3 are the same take same goes for y1.y2,y3. x is more full body ( rounder, perhaps coloured) as Sven mentioned. y to my ears is thinner (brighter or less coloured). Without knowing( familiar with) the particular guitar being used hard to say which is more transparent. Because of the slap happy unstable build process of CCs, they can vary from resistor to resistor with noise, tone ect.
I'll take a punt and say x=CC without laying out any betting money.
RN65 is a military spec metal film. We are not comparing CC to CF but CF to metal film.
Sven wrote:Greetings,
On my small laptop monitors X sounds a bit more ¨round¨, ¨deeper¨, ... well, and the Y sounds ¨tighter¨ and a bit ¨brighter¨. Since monitor speakers are rolling off below 200 Hz, that is not a good monitoring situation at all for THIS type of judgement.
The usual story is that X would be CC and Y would be CF, but one shold really think of CF 1% resistors as more precise in terms of tolerance and technical quality overall, and that would be just about it for me. I do not believe in ¨resistor magic¨.
If it means anything to this builder, if it is accepted, the recommendation from these quarters is to use RN65 or similar quality CF 1% resistors.
Sound of the clip from another thread is so much better than previous clips from this month. It looks like a great progress, indeed.
RN65 is a military spec metal film. We are not comparing CC to CF but CF to metal film.
Greetings,
Yeah, I noticed my error later, but people understood perhaps what I tried to actually state: I meant to write metal film and not carbon film - well, perhaps subconciously, I guess, CF was easier to write
Well, that makes the point even more pronounced, since military spec metal film is even more precise and quality oriented than CF, let alone CC, which in turn points even more to the direction of RN65 as the better choice.
Frankly, it is a bit surprizing to me that there is any difference between ANY two different types of resistors, that can be heard (!) in this amplifier through computer speakers (???).
I don't hear the clip's the same as other's, on my pc. the X's have it, more high's and more open sound, the Y's have less to offer me, but, i don't have any experience with RN65's so i can't guess as to which one X is, I do like the way CF's sound in a Fender circuit though over CC's, I do know that the MF's when used for modding effect's pedal's alway's seem to clean and open up the circuit, if i were to guess at this i would be tempted to say the X = RN65 and the Y = CF.
Right or wrong, it'll be fun to see what you used on the clip's,
Johnhenry
I hear more top end clarity on the Y clip. I would be interested to know the precise value of each resistor. IMHO the value differences would have more effect on the sound than the type given that you only swapped 2 resistors. I lowered the value on my V1a plate resistor and noticed a similar effect on the sound as your clip - a little crisper. Thanks for the post!
whit
Tonegeek wrote:I hear more top end clarity on the Y clip. I would be interested to know the precise value of each resistor. IMHO the value differences would have more effect on the sound than the type given that you only swapped 2 resistors. I lowered the value on my V1a plate resistor and noticed a similar effect on the sound as your clip - a little crisper. Thanks for the post!
whit
Come on Whit - make a guess...or are you saying it's Y?
No CC's on this amp..
