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ALO Pan Am desktop/portable headphone amp/DAC: Impressions and Reviews - Page 29

post #421 of 1114
Quote:
Originally Posted by 62ohm View Post
 

 

+1 on this, just about to ask the same thing. How does the Pan Am compares to say, Graham Slee Solo SRG-II on driving HD800 / T1?

unfortunately no, Pan Am is not good match for T1, tried 4 different tubes but still not satisfying sound. End up buying CORDA CLASSIC for T1. For my surprise CLASSIC was also better match for LCD2.

post #422 of 1114

I have not heard the Corda Classic or Graham Slee Solo, but really I have no complaints with the PanAm driving the T1, TH900, and LCD 2.2. Hopefully I can broaden my horizons when it comes to amp pairing with these cans. 

 

In saying that, they are satisfying enough for me when I move down from my main rigs to the PanAm with all the cans mentioned above. I actually prefer (maybe more a matter of musical tastes and sound sig preference?) the PanAm>T1, PanAm>TH900 to the Lyr. The Lyr I prefer on the Planars more. 

 

With the T1 PanAm combination vs the NAD M51>Soloist>T1 combination, here are the pros and cons as I perceive them:

 

PROS:

- Transportable

- Sufficient power compared to direct from iDevice/Android as DAP

- Can change sound sig using tubes.

- Very good sound quality

- Multiple inputs allow for flexibility

- Sounds good even with just iDevice as input (Line level output)

 

CONS:

- Less soundstage compared to full desktop setup. It does not sound closed-in but it's not as wide either.

- Less detail

- Bass loses a bit of oomph

- Bass quality degrades just a tad

 

Other points to consider:

- With a better DAC, the sound improves noticeably. This is not a leaps-and-bounds increase, but it is noticeable. If you have a better DAC already, hook it up via the RCA in. If you don't have a better DAC already lying around, I don't think you should spring for a better one. Save up for a better system overall. 

- The battery could have been a bit better for the price. Mine is a year old, and already the battery life is noticeably degrading. 

 

Some time next year, I will do a head-to-head comparison with the CEntrance HiFi-M8. Not sure when I'll get it, but they are supposed to ship in early march. The M8 was my main target last year, but decided to wait until it was actually in product. I got the PanAm instead. I have now ordered the M8. A head to head should be interesting. :) 

post #423 of 1114
Quote:
Originally Posted by NZheadcase View Post
 

I have not heard the Corda Classic or Graham Slee Solo, but really I have no complaints with the PanAm driving the T1, TH900, and LCD 2.2. Hopefully I can broaden my horizons when it comes to amp pairing with these cans. 

 

In saying that, they are satisfying enough for me when I move down from my main rigs to the PanAm with all the cans mentioned above. I actually prefer (maybe more a matter of musical tastes and sound sig preference?) the PanAm>T1, PanAm>TH900 to the Lyr. The Lyr I prefer on the Planars more. 

 

With the T1 PanAm combination vs the NAD M51>Soloist>T1 combination, here are the pros and cons as I perceive them:

 

PROS:

- Transportable

- Sufficient power compared to direct from iDevice/Android as DAP

- Can change sound sig using tubes.

- Very good sound quality

- Multiple inputs allow for flexibility

- Sounds good even with just iDevice as input (Line level output)

 

CONS:

- Less soundstage compared to full desktop setup. It does not sound closed-in but it's not as wide either.

- Less detail

- Bass loses a bit of oomph

- Bass quality degrades just a tad

 

Other points to consider:

- With a better DAC, the sound improves noticeably. This is not a leaps-and-bounds increase, but it is noticeable. If you have a better DAC already, hook it up via the RCA in. If you don't have a better DAC already lying around, I don't think you should spring for a better one. Save up for a better system overall. 

- The battery could have been a bit better for the price. Mine is a year old, and already the battery life is noticeably degrading. 

 

Some time next year, I will do a head-to-head comparison with the CEntrance HiFi-M8. Not sure when I'll get it, but they are supposed to ship in early march. The M8 was my main target last year, but decided to wait until it was actually in product. I got the PanAm instead. I have now ordered the M8. A head to head should be interesting. :) 

Have you tried mullard tubes with the pan and t1 or what tube have you tried that tame the t1's treble?

post #424 of 1114
Quote:
Originally Posted by mentt View Post
 

unfortunately no, Pan Am is not good match for T1, tried 4 different tubes but still not satisfying sound. End up buying CORDA CLASSIC for T1. For my surprise CLASSIC was also better match for LCD2.

what tubes have you tried with it sir?

post #425 of 1114
Quote:
Originally Posted by BattousaiX26 View Post

Have you tried mullard tubes with the pan and t1 or what tube have you tried that tame the t1's treble?

I've tried the stock, the russian tubes, and the siemens tubes from alo direct.

The Siemens are hands down my favourite for the TH900 and T1. The russian tubes (voshkods, if I recall correctly) are nice with the T1 too. I have not tried any other tubes, unfortunately.

To be honest I'm not bothered by the T1's treble. I quite enjoy the T1's signature, top to bottom.
post #426 of 1114
Quote:
Originally Posted by BattousaiX26 View Post
 

what tubes have you tried with it sir?

Voshkods=harsh , Mullards=harsh but not as much as Voshkods, Stock Chines= almost like Voshkods, but less soundstage and less resolution, Siemens= not as harsh as other tubes, but bass is not as present and there for sound is not as musical.   Beyerdynamic A20 and CORDA CLASSIC AMPs are better match. These I can recommend .

post #427 of 1114
Quote:
Originally Posted by BattousaiX26 View Post

Btw just want to ask guys here with experience on both beyer t1 and senn hd800 with the pan am, do pan am able to tame treble of those cans? smily_headphones1.gif

I am very happy with the HD800 on the Pan Am. I'm currently using it with Telefunken 6AK5W tubes, and it sounds excellent. It was also terrific with Russian 6J1P-EV tubes. Can't speak to the T1's, but DT880's sound good with Mullards, Cifte's and the Russian tubes.
post #428 of 1114
Quote:
Originally Posted by R Scott Ireland View Post

I use the Passport, and if it runs low, it is no problem continuing to listen with the Wallwart plugged into the Passport. I don't detect any difference in sound.

Mainly I do the same however I know that the lower the battery the lower the max output level before distortion.
That mean when Passport is full you can amp Alpha Dogs to deafening levels before you hear any distortion, but once battery gets low you hear distortion even at comfortable listening levels.
The Passport acts are huge capacitor, so this also means that there is some minimal portion of interference if you connect wallwart to it, and maybe with sensitive headphones you can hear it.
I personally never heard anything, but it is possible in theory.

To avoid distortion you need to ensure that Passport always charged at high level. You can use wallwart, but it gets warm very quickly, so it's probably not very efficient transformer.
Also when you listen at louder volumes Passport may get discharged faster than charged when wallwart is being used as its charger. I wonder what is Gateway's performance though.
Should I assume that Gateway is much more efficient transformer and more powerful?
post #429 of 1114
Quote:
Originally Posted by R Scott Ireland View Post


I am very happy with the HD800 on the Pan Am. I'm currently using it with Telefunken 6AK5W tubes, and it sounds excellent. It was also terrific with Russian 6J1P-EV tubes. Can't speak to the T1's, but DT880's sound good with Mullards, Cifte's and the Russian tubes.

How does the telefunken sounds with hd800 and also what is the nature of telefunken tubes? :)

post #430 of 1114
Quote:
Originally Posted by koolas View Post

Mainly I do the same however I know that the lower the battery the lower the max output level before distortion.
That mean when Passport is full you can amp Alpha Dogs to deafening levels before you hear any distortion, but once battery gets low you hear distortion even at comfortable listening levels.
The Passport acts are huge capacitor, so this also means that there is some minimal portion of interference if you connect wallwart to it, and maybe with sensitive headphones you can hear it.
I personally never heard anything, but it is possible in theory.

To avoid distortion you need to ensure that Passport always charged at high level. You can use wallwart, but it gets warm very quickly, so it's probably not very efficient transformer.
Also when you listen at louder volumes Passport may get discharged faster than charged when wallwart is being used as its charger. I wonder what is Gateway's performance though.
Should I assume that Gateway is much more efficient transformer and more powerful?

That's interesting. However, I've never experienced distortion when the Passport runs down. Just about 3 seconds of gentle volume reduction to 0. This is with HD800, LCD-3 and various other phones.
post #431 of 1114
Quote:
Originally Posted by BattousaiX26 View Post

How does the telefunken sounds with hd800 and also what is the nature of telefunken tubes? smily_headphones1.gif

For lack of a better term, I find the Telefunkens to be "neutral" across all frequencies. They are not for bass-heads - the lows are there, but not in abundance.
I like treble presence/brightness (I listen to Classical). But the Telefunkens deliver very smooth/even mids and highs. The LCD-3 sounds as good with these as just about any other combo I've tried - on any amp. I find the LCD-3 to be very amp/tube picky; they sound wonderful on the Pan Am with these tubes. The HD800's also sound very good, although there are other amp/tube combos that I prefer, mostly due to a slightly larger soundstage (not huge with the Telefunkens, although quite good).
Edited by R Scott Ireland - 1/2/14 at 9:42am
post #432 of 1114
Quote:
Originally Posted by R Scott Ireland View Post

That's interesting. However, I've never experienced distortion when the Passport runs down. Just about 3 seconds of gentle volume reduction to 0. This is with HD800, LCD-3 and various other phones.

My experience mirrors yours, scott.

No noticeable distortion even with the T1 or TH900. I listen with quite a low volume too. With the PanAm, you need a gentle touch on the pot as moving it just a tad increases the volume drastically.

The amp does get hotter with the gateway, but not Lyr hot. Whether that means its more powerful than passport, I don't know. Have not noticed a difference, sonically betrween the two.
post #433 of 1114
Quote:
Originally Posted by NZheadcase View Post

The amp does get hotter with the gateway, but not Lyr hot. Whether that means its more powerful than passport, I don't know. Have not noticed a difference, sonically betrween the two.

Good to know NZ. I was thinking of getting a Gateway, but when the Passport runs low, I just plug it in and keep listening - no change in sound quality. I always use it semi-portably (AC always available however); I guess the Passport is all I really need.
post #434 of 1114
On most records there is more distortion on the track than added by Pan Am, so it's hard to judge where the distortion come from. I can hear distortion even on some well mastered tracks from HDTracks.
post #435 of 1114

Just received it today.  So much smaller than my Greatech muVac. 

 

Can't wait to listen to it.  Now trying to get the computer to recognize the USB connection.  It's supposed to be plug and play, right?

 

 

Got it working.  Got a different USB cord and plugging it into my win8 tablet now and sounds great.  I think I might have damaged the first USB cord when trying to plug it into the Pan Am.  The fit is a bit tight.


Edited by viggen - 1/3/14 at 6:11pm
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