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post #316 of 319
Quote:
Originally Posted by catcherfly View Post
 

Thanks for your reply!

I would use it primarily with T-Peos H-300s which are pretty bright so I'm looking for an Amp/dac that would counter that. I am also curious about a battery life comparison, idevice changing comparison, power differences, and noise floor comparison. 

 

I don't think either device is going to suit your needs that well...

 

Amp/DAC to counter brightness:

 

SDT output impedance is 10ohm so you're going to get the opposite of that with your 22ohm H-300s.

 

720 isn't going to add or remove much in the way in the brightness. Its pretty neutral but can actually sound a little light on the bass (which sometimes make it seem brighter) with some combinations (I'm looking at the LCD 2's here but that could just be a power limitation)

 

Battery life comparison:

 

This is the reason I originally bought the SDT. with most of the other Amp/DAC combos sporting a 6 hour battery life I wouldn't of got through the day at work without having to put them on charge at some point. The SDT gives me enough juice to last me a full 8 hours at work & travelling there & back too. I've not timed either device as this was good enough for me.

 

The 720 should give more a load more juice but TBH I've never let it die completely on me...

 

One thing of note on this topic is that the SDT can be charged from a PC via the USB micro (Which is also the DAC connection) where as the 720 needs its own power adaptor to charge...

 

iDevice changing? 

 

I'm not really sure what you mean here sorry. The only iDevice I've used with either is an iPod Touch 5th gen 64GB.

 

If you mean iDevice charging then the 720 does charge the iDevice while in use but not while you're charging it. On the other hand while in use the SDT does not charge the iDevice but if you pug the SDT in via USB to charge it then once its own battery is full it will then charge the iDevice via the connected cable.

 

Power differences:

 

The SDT doesn't have enough power to push all cans. In high gain I can max out the volume pot with my LCD 2's & although its too loud to listen to comfortably with a modern day recording it also has a fair amount of distortion. The 720 can push even the 600ohm T1's in medium gain just fine. I think it has a little extra bass impact in high gain though so I use that & less of the volume pot...

 

Noise floor comparison.

 

SDT is dead silent with all my IEMs & full size headphones. 720 has a distinct hiss with all IEMs but is silent with full size cans.

 

Regardless of this the 720 sounds so god dman good with my JH13 I tend to use it more than I do the SDT & put up with a bit of hiss. Its something you need to experience for yourself to decide if its too much for you or not I think...

 

Hope that helped.

post #317 of 319
Quote:
Originally Posted by Nuwidol View Post
 

 

I don't think either device is going to suit your needs that well...

 

Amp/DAC to counter brightness:

 

SDT output impedance is 10ohm so you're going to get the opposite of that with your 22ohm H-300s.

 

720 isn't going to add or remove much in the way in the brightness. Its pretty neutral but can actually sound a little light on the bass (which sometimes make it seem brighter) with some combinations (I'm looking at the LCD 2's here but that could just be a power limitation)

 

Battery life comparison:

 

This is the reason I originally bought the SDT. with most of the other Amp/DAC combos sporting a 6 hour battery life I wouldn't of got through the day at work without having to put them on charge at some point. The SDT gives me enough juice to last me a full 8 hours at work & travelling there & back too. I've not timed either device as this was good enough for me.

 

The 720 should give more a load more juice but TBH I've never let it die completely on me...

 

One thing of note on this topic is that the SDT can be charged from a PC via the USB micro (Which is also the DAC connection) where as the 720 needs its own power adaptor to charge...

 

iDevice changing? 

 

I'm not really sure what you mean here sorry. The only iDevice I've used with either is an iPod Touch 5th gen 64GB.

 

If you mean iDevice charging then the 720 does charge the iDevice while in use but not while you're charging it. On the other hand while in use the SDT does not charge the iDevice but if you pug the SDT in via USB to charge it then once its own battery is full it will then charge the iDevice via the connected cable.

 

Power differences:

 

The SDT doesn't have enough power to push all cans. In high gain I can max out the volume pot with my LCD 2's & although its too loud to listen to comfortably with a modern day recording it also has a fair amount of distortion. The 720 can push even the 600ohm T1's in medium gain just fine. I think it has a little extra bass impact in high gain though so I use that & less of the volume pot...

 

Noise floor comparison.

 

SDT is dead silent with all my IEMs & full size headphones. 720 has a distinct hiss with all IEMs but is silent with full size cans.

 

Regardless of this the 720 sounds so god dman good with my JH13 I tend to use it more than I do the SDT & put up with a bit of hiss. Its something you need to experience for yourself to decide if its too much for you or not I think...

 

Hope that helped.

Thanks so much Nuwidol! this is really helpful.

 

I meant idevice charging - and again, this info is very helpful because one thing I would also like to do is use as a DAC only connected to iPhone and my car stereo. The DAC would be powered all the time in this configuration and would need to charge the iPhone. Sounds like only SDT would do this but it is a shame it won't charge the idevice while running on battery power - I thought I read that it did this.

 

Could i play my h-300s on medium gain with the 720 to get rid of the hiss? or would that distort?

 

When you said that the SDT output impedance is 10ohm and 22ohm on the H-300s, does that mean the SDT is not powerful enough?? I don't fully comprehend impedance. I also don't understand how impedance would change the characteristics of the sound. If it is neutral sounding amp/dac, I would be fine with that ultimately. 

post #318 of 319
Quote:
Originally Posted by catcherfly View Post
 

Thanks so much Nuwidol! this is really helpful.

 

I meant idevice charging - and again, this info is very helpful because one thing I would also like to do is use as a DAC only connected to iPhone and my car stereo. The DAC would be powered all the time in this configuration and would need to charge the iPhone. Sounds like only SDT would do this but it is a shame it won't charge the idevice while running on battery power - I thought I read that it did this.

 

Could i play my h-300s on medium gain with the 720 to get rid of the hiss? or would that distort?

 

When you said that the SDT output impedance is 10ohm and 22ohm on the H-300s, does that mean the SDT is not powerful enough?? I don't fully comprehend impedance. I also don't understand how impedance would change the characteristics of the sound. If it is neutral sounding amp/dac, I would be fine with that ultimately. 

I just read through some of the forum where people are talking about the impedance issues. Would the MUSES02 counter the tonality issues caused by the low impedance?

post #319 of 319
Quote:
Originally Posted by Nuwidol View Post

I don't think either device is going to suit your needs that well...

Amp/DAC to counter brightness:

SDT output impedance is 10ohm so you're going to get the opposite of that with your 22ohm H-300s.

720 isn't going to add or remove much in the way in the brightness. Its pretty neutral but can actually sound a little light on the bass (which sometimes make it seem brighter) with some combinations (I'm looking at the LCD 2's here but that could just be a power limitation)

Battery life comparison:

This is the reason I originally bought the SDT. with most of the other Amp/DAC combos sporting a 6 hour battery life I wouldn't of got through the day at work without having to put them on charge at some point. The SDT gives me enough juice to last me a full 8 hours at work & travelling there & back too. I've not timed either device as this was good enough for me.

The 720 should give more a load more juice but TBH I've never let it die completely on me...

One thing of note on this topic is that the SDT can be charged from a PC via the USB micro (Which is also the DAC connection) where as the 720 needs its own power adaptor to charge...

iDevice changing? 

I'm not really sure what you mean here sorry. The only iDevice I've used with either is an iPod Touch 5th gen 64GB.

If you mean iDevice charging then the 720 does charge the iDevice while in use but not while you're charging it. On the other hand while in use the SDT does not charge the iDevice but if you pug the SDT in via USB to charge it then once its own battery is full it will then charge the iDevice via the connected cable.

Power differences:

The SDT doesn't have enough power to push all cans. In high gain I can max out the volume pot with my LCD 2's & although its too loud to listen to comfortably with a modern day recording it also has a fair amount of distortion. The 720 can push even the 600ohm T1's in medium gain just fine. I think it has a little extra bass impact in high gain though so I use that & less of the volume pot...

Noise floor comparison.

SDT is dead silent with all my IEMs & full size headphones. 720 has a distinct hiss with all IEMs but is silent with full size cans.

Regardless of this the 720 sounds so god dman good with my JH13 I tend to use it more than I do the SDT & put up with a bit of hiss. Its something you need to experience for yourself to decide if its too much for you or not I think...

Hope that helped.

I spoke with Cypher Labs today and they said that the 720 does, in fact, charge an iDevice both on the 720s battery and when plugged into a power source.
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