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Schiit Magni Headphone Amplifier - Page 60

post #886 of 2183
Don't those add output impedance, in order to make sensitive headphones not geg loud as fast? That would make it bad for easy to drive headphones, which is what the Magni has a problem with to begin with.
Edited by Mad Lust Envy - 1/17/13 at 5:52am
post #887 of 2183

These attenuators are used at the RCA ins to attenuate the input signal of the amp. It seems to be a simple voltage divider with 2 resistors per channel (GBP 40 for that, really?), so it does influence impedances, but on the source <-> amp side, not the headphone output.

 

Here's what somebody wrote as a reply to a review of their attenuators. I thought it's quite funny:

"Rothwell ...: Ferrari's too fast? Run it with hand-brake."


Edited by xnor - 1/17/13 at 6:08am
post #888 of 2183
Quote:
Originally Posted by xnor View Post

These attenuators are used at the RCA ins to attenuate the input signal of the amp. It seems to be a simple voltage divider with 2 resistors per channel (GBP 40 for that, really?), so it does influence impedances, but on the source <-> amp side, not the headphone output.

Here's what somebody wrote as a reply to a review of their attenuators. I thought it's quite funny:
"Rothwell ...: Ferrari's too fast? Run it with hand-brake."

Lol that is pretty funny. Like I said, I don't own these and I'm not trying to promote them. I just saw a pair for sale, read a bit on them and thought they might be useful to some buddy. Maybe a person who has tried them can comment.

Edit: here is the link to the form sale if ppl want to ask the seller questions.

http://www.head-fi.org/t/646479/rothwell-audio-rca-in-line-attenuators-if-your-source-is-too-hot-for-your-amp
Edited by merkil - 1/17/13 at 6:49am
post #889 of 2183

I've been using these for a while with my LD 1+:

 

http://www.parts-express.com/pe/showdetl.cfm?partnumber=266-244

 

Works very fine and give much bigger room to play with volume.

 

I'll try them with the Magni this weekend.

post #890 of 2183

interdasting.  these don't degrade the signal? just reduce it as it were?

post #891 of 2183
Quote:
Originally Posted by peter123 View Post

I've been using these for a while with my LD 1+:

 

http://www.parts-express.com/pe/showdetl.cfm?partnumber=266-244

 

Works very fine and give much bigger room to play with volume.

 

I'll try them with the Magni this weekend.

 

 

These are more fairly priced. 

 

I have not used these before but I would think it would be fine in terms of SQ. One person in the reviews for the ones at part express said it didn't degrade SQ on his system, grain of salt?

post #892 of 2183
Quote:
Originally Posted by peepr View Post

interdasting.  these don't degrade the signal? just reduce it as it were?

I've not been able to hear any difference in sound using them on my LD 1+ (but then again I don't have golden earswink.gif).

 

I'm using them on my Magni right now and can easily go to between 1 and 2 o'clock on the volume with my FA-011 with classical music.

post #893 of 2183
Quote:
Originally Posted by peter123 View Post

I've been using these for a while with my LD 1+:

...

Purely going off of the amps (minus the attenuators) how does the LD 1+ compare to the Magni? (I know, two different beasts, I just wanted to hear your comparison)

post #894 of 2183
Quote:
Originally Posted by peter123 View Post

I've not been able to hear any difference in sound using them on my LD 1+ (but then again I don't have golden earswink.gif
).

I'm using them on my Magni right now and can easily go to between 1 and 2 o'clock on the volume with my FA-011 with classical music.

These might be the answer to some ppls needs. To be honest the sharp volume rise is what turned me off the Magni (I went with the Asgard). If I would have known about the attenuators before hand it would have influenced my decision. Oh well, can't really complain to much both are great amps.
post #895 of 2183

I don't really understand those connectors. You are amplifying a signal and then you are ... reducing the amping? Seems backwards.

post #896 of 2183
Quote:
Originally Posted by ninjames View Post

I don't really understand those connectors. You are amplifying a signal and then you are ... reducing the amping? Seems backwards.

No. These go in the back of the amp on the RCA plugs. You plug your RCA cables from your dac into them and they plug into the back of your amp. What they do is reduce the overall gain being fed into amp so that you can have more play on the volume pot of the amp. It reduces the signal before the amp and then the amp amplifies the reduced signal, but you will have more play on the volume because of this reduction.
post #897 of 2183

Merkil is exactly correct. They are in-line RCA attenuators comprised of resistors. The good ones are capable of attenuation across the audible band evenly; beware the cheaper type which can cause 'spikes' at certain frequencies due to uneven electrical suppression. I used to run inline attenuators with a Sony SCD-CE595 changer into an early 60's integrated amp. This amp had a hot linestage consisting of 6U8s I believe and the 2V p-p output of the CD deck was too much.
 

post #898 of 2183

How do we know enough power is getting to the headphones then? I still don't "get" this. The Magni has low travel on the volume control because it's outputting too much power, right? So this is lessening that output? 

post #899 of 2183
Quote:
Originally Posted by ninjames View Post

How do we know enough power is getting to the headphones then? I still don't "get" this. The Magni has low travel on the volume control because it's outputting too much power, right? So this is lessening that output? 

Only lessening what's going in.
post #900 of 2183
Quote:
Originally Posted by wes008 View Post


Only lessening what's going in.

Which would have to mean what goes out is less, no?

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