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NEW Vali Schiit AMP!!! - Page 227

post #3391 of 4354
Quote:
Originally Posted by iJimmy View Post

Hey guys,

Hopefully I'll be a proud owner of the Vali in a couple of hours! I had a question though while I impatiently wait: do you think it's a mistake buying only the Vali and not it's best friend the Modi as well? The Modi was out of stock where I bought it (dealer Netherlands). Do you think it will be enjoyable on it's own (used with a Hifiman HE-400 and soon a modded T50RP)? I never had an amplifier before, so I figured it would be an improvement either way

 

Consider an Audio Quest  Dragonfly. If budget is a concern, go with version 1, they are basically being given away, even new. Just be sure to get the dragon tail adaptor, its easily worth the 16 bucks and also factor in cost of a cable that will send the headphone signal in stereo to the Vali.  1/8 to stereo cables are everywhere, just don't pay too much! I recommend Blue Jeans cable "MSA-1" at 30 but some head-fief's might say that is even too much. 

 

I have such a setup with the dragonfly 1.2 and it works quite well. As a bonus I can pull the Dragonfly out and take it with me to use with portable headphones on the go. 

post #3392 of 4354

so is there any general warm up time people use for tube amps (I realize this is a hybrid)

 

when i first turned on the vali today, it just sounded really bad but 20-30 minutes later it was just the sound I loved about this amp.

do tube amps require some warmup? Or i am just going through brain burn in?

post #3393 of 4354
Quote:
Originally Posted by kcazbarach View Post
 

so is there any general warm up time people use for tube amps (I realize this is a hybrid)

 

when i first turned on the vali today, it just sounded really bad but 20-30 minutes later it was just the sound I loved about this amp.

do tube amps require some warmup? Or i am just going through brain burn in?

Mine is good to go rather quickly. 20-30 minutes seems like a long time for it to sound "really bad."

post #3394 of 4354

Hello,

 

I have read these forums for a while, but this is my first post!

 

I just got the Vali to use with my Sennheiser HD598s.  I have good hearing and listen to lots of quiet music with sparse arrangements, so I find the hiss to be pretty bothersome.  I am looking in to attenuating the volume somehow to reduce the hiss.  Reading earlier in this posting, someone suggested an “L-Pad” would be the best solution, to avoid messing up frequency response.

I wasn’t able to find any L-Pads made for this purpose, and don’t have skills to make my own.  I did, however, find this cable made to hook a Zoom H4N or Zoom H1 to a video camera. 

 

http://www.bhphotovideo.com/c/product/746651-REG/Sescom_LN2MIC_ZOOMH4N_6_LN2MIC_ZMH4N_6_Line_to.html

 

Do you think this would work to reduce hiss with the Vali?

 

Thank you.

post #3395 of 4354
Quote:
Originally Posted by kcazbarach View Post

so is there any general warm up time people use for tube amps (I realize this is a hybrid)

when i first turned on the vali today, it just sounded really bad but 20-30 minutes later it was just the sound I loved about this amp.
do tube amps require some warmup? Or i am just going through brain burn in?
In my experience, I switched it on and after the "obligatory" ringing was over, the amp was good to go. Funnily enough I don't even hear the ringing on start up from time to time.
post #3396 of 4354
Quote:
Originally Posted by happyguitarist View Post
 

Hello,

 

I have read these forums for a while, but this is my first post!

 

I just got the Vali to use with my Sennheiser HD598s.  I have good hearing and listen to lots of quiet music with sparse arrangements, so I find the hiss to be pretty bothersome.  I am looking in to attenuating the volume somehow to reduce the hiss.  Reading earlier in this posting, someone suggested an “L-Pad” would be the best solution, to avoid messing up frequency response.

I wasn’t able to find any L-Pads made for this purpose, and don’t have skills to make my own.  I did, however, find this cable made to hook a Zoom H4N or Zoom H1 to a video camera. 

 

http://www.bhphotovideo.com/c/product/746651-REG/Sescom_LN2MIC_ZOOMH4N_6_LN2MIC_ZMH4N_6_Line_to.html

 

Do you think this would work to reduce hiss with the Vali?

 

Thank you.

I suggested the L-PAD. The one you have linked to is not what you want, it'll reduce the signal far too muc as it;s for microphones hot headphones. You could probably use something like the below but don't need that much power. Perhaps a fixed L-PAD that attenuates 6 or 10 dB would be just right.

http://www.amazon.com/L-Pad-50W-Stereo-Rated-Shaft/dp/B0002KR1BO/ref=sr_1_1?ie=UTF8&qid=1391909810&sr=8-1&keywords=L-PAD+stereo

 

The below is probably too technical but has the information to calculate your own from cheap resistors.

http://en.wikipedia.org/wiki/L-pad

post #3397 of 4354
Quote:
Originally Posted by kcazbarach View Post
 

so is there any general warm up time people use for tube amps (I realize this is a hybrid)

 

when i first turned on the vali today, it just sounded really bad but 20-30 minutes later it was just the sound I loved about this amp.

do tube amps require some warmup? Or i am just going through brain burn in?

i have had the same experience.  a bit thin and not full sounding at first turn on, but after 30 or so minutes, it sounds great.  

post #3398 of 4354
Quote:
Originally Posted by kcazbarach View Post
 

so is there any general warm up time people use for tube amps (I realize this is a hybrid)

 

when i first turned on the vali today, it just sounded really bad but 20-30 minutes later it was just the sound I loved about this amp.

do tube amps require some warmup? Or i am just going through brain burn in?

 

I've yet to try out my new Vali but I used to warm up the Lyr for around 5 - 10 minutes back when I had it. 

post #3399 of 4354

Thank you StanD!

So 25dB would be too much?  I was hoping that cable would work, as it is already assembled and ready to go.  I don't understand what I would do with the one in the link you provided (I really have no skills with electronics)

post #3400 of 4354
Quote:
Originally Posted by happyguitarist View Post
 

Thank you StanD!

So 25dB would be too much?  I was hoping that cable would work, as it is already assembled and ready to go.  I don't understand what I would do with the one in the link you provided (I really have no skills with electronics)

If you put an 8.2 Ohm resistor between the output of the amp and the earcup (the other side of the earcup goes to ground) and a 10 Ohm resistor in parallel with the earcup (across both leads). You will roughly cut the gain by 6 dB or by 1/2 and keep good damping with the HD598 cans and the amp will see a 16.5 Ohm load (as if headhphones were 16.5 Ohms). The HD598 will see the equivalent of 4.5 Ohms amp impedance if the amp has 2 ohms real output impedance. If the amp has a lower impedance the number will be lower.

Of course you don't solder the resistors onto the cans, you do it with jacks that you plug the cans into and plug the amp into. and you do the same for the left and right channels. Next thing is if the resistors are 5% then you risk causing a channel imbalance, To pevent that you can buy more expensive resistors or buy a bunch of cheap 1/2 watt 5% carbon resistors and get the best match for each channel with an Ohm Meter. I picked standard value resistors.

 

Amp Left Output ----8.2 Ohm Resistor----|-----Left earcup HD598------------|
                                        |-------10 Ohm Resistor------------|---------Ground

 

Amp<<--------cable--------->>----small metal hobby box with resistors inside---<<------Headphone

 

Find a friend that can solder.

 

Edit: If the volume is too low, make that 8.2 Ohm resistor a little lower in value, maybe 5.6 Ohms. That would make the amp see a 13.9 Ohm load and the headphones see an equivalent of 3.75 Ohms if the amp was 2 Ohms.


Edited by StanD - 2/8/14 at 8:44pm
post #3401 of 4354

Thank you again StanD for taking the time to make such a thoughtful and informative reply! 

post #3402 of 4354
Quote:
Originally Posted by happyguitarist View Post
 

Thank you again StanD for taking the time to make such a thoughtful and informative reply! 

Glad to help. I hope you can manage to get it put together.

post #3403 of 4354

A Soundblaster X-Fi HD RCA out was used for both Vali and Asgard. All opinions below are, obviously, subjective.

 

The HD700 with Vali and Asgard
The difference between these two amps using the HD700 is minimal... maybe even non-existent... to my ears.

 

Denon AH-D2000 with Vali

It isn't as punchy or tight compared to Asgard.

 

Denon AH-D2000 with Asgard
Everything is tighter. I'm not sure how else to describe it, but I definitely prefer it.

 

Vali vs. Asgard

If I had to choose between Vali and Asgard, I would purchase Asgard since it sounds great with both of my headphones. It seems the Asgard's price difference is related more to versatility than just 'sounding better'.

 

Overall

If I wanted to try very specific headphones such as the HD650, HD700, HD800, DT-880, DT-990, etc. and was on a tighter budget, I would purchase the Vali. I see no reason why amplification of certain 'higher-end, higher-impedance' headphones should require multi-thousand dollar amps. Would they (particularly, the HD700 and 800) sound that much better? Probably not, but that's just one man's opinion. :)

 

When I purchased the HD700, the only other amp I considered was the Bottlehead Crack, and I ultimately chose Vali because I did not want to deal with the DIY stuff. I may try the Bottlehead Crack in the future, but I'm not disappointed with Vali whatsoever.


Edited by jworl - 2/9/14 at 9:38am
post #3404 of 4354

I'm temporarily running the TDK BA200 out of the Vali while waiting for my HD600s. Damn, the hiss pretty bad. I can hear it even when a song is playing. 

post #3405 of 4354
My Vali came with a scratch above the volume knob. It is now out of the 15-day refund period and the RMA period for aesthetic issues, but Schiit is sending me a new chassis for it, free of charge! Great CS!!
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