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Analog Squared Paper Discussion and Appreciation Thread. - Page 81

post #1201 of 3477
TIMITS.

If your on Facebook I very much recommend you contacting him via pm there. In my experience I get faster response on there than email.
post #1202 of 3477
Quote:
Originally Posted by TIMITS View Post

I posted an enquiry on the Analog Squared Paper's Contact page 2-3 days ago and so far have not had a reply.  I'm glad that Shikada San is getting the recognition deserved for his exemplary work but I'm having second thoughts about ordering.  I was part of a Head-Fi organised group buy for the Thunderpants Fostex T50RP headphones and it was a disappointing experience taking 13 months plus the intervention of another Head-Fi member before actually receiving the headphone.  I wouldn't expect the same experience from Shikada-san but it is difficult when a small business becomes swamped by orders and the only mode of communication is email.  

 

 

TIMITS, 

 

I did not attempt to contact Shikada San during my amp building time. And I have, in the past, been involved in some head-fi 'scams'. I do not think that this is the case with the A2P amps. I received my amp with a bit of a delay, but the build quality is first rate, and the sound, well, I just can't say enough good things about it. I recommend patience, which, if your upcoming amp would happen to sound anything like mine, then you will be rewarded by many evenings of sonic bliss. Not trying to change your mind, only to console if you are nervous about your purchase. Also, thank you for your kind words in the fad thread. :)

 

-wc

post #1203 of 3477

Okay Ian, you are the resident expert. Both the mil spec Ken-Rads and the Mullards gave me snap-crackle-pop. Pin condition was equal amongst all three sets (including the totally silent Siemens). Advice?

post #1204 of 3477
Quote:
Originally Posted by woodcans View Post


TIMITS, 

I did not attempt to contact Shikada San during my amp building time. And I have, in the past, been involved in some head-fi 'scams'. I do not think that this is the case with the A2P amps. I received my amp with a bit of a delay, but the build quality is first rate, and the sound, well, I just can't say enough good things about it. I recommend patience, which, if your upcoming amp would happen to sound anything like mine, then you will be rewarded by many evenings of sonic bliss. Not trying to change your mind, only to console if you are nervous about your purchase. Also, thank you for your kind words in the fad thread. smily_headphones1.gif

-wc

Exactly. I think it important to remember this is a bespoke company run by one man who is making remarkable amps that sonically punch well above their weight. I have seen some things on this forum that have been less than wonderful business practices ( a certain US custom IEM manufacture to name one!) who I would never purchase from. I felt very safe purchasing from ASP and I would not hesitate in recommending him. Like all hand made in small quantity things, patience is worth the effort for the end result!
post #1205 of 3477
Quote:
Originally Posted by ianmedium View Post


Exactly. I think it important to remember this is a bespoke company run by one man who is making remarkable amps that sonically punch well above their weight. I have seen some things on this forum that have been less than wonderful business practices ( a certain US custom IEM manufacture to name one!) who I would never purchase from. I felt very safe purchasing from ASP and I would not hesitate in recommending him. Like all hand made in small quantity things, patience is worth the effort for the end result!

 

A truly wonderful thing, once experienced. 

post #1206 of 3477

I hope TU-05b and ASP continue to evolve, retaining the principle ethos and a guide to others. At the moment ordering seems like it's not such a good prospect, not least the dependance on a paucity of valves available? 

post #1207 of 3477
I certainly would not worry about the amount of valves available! There is a huge community of vintage radio buffs out there and a huge supply of valves available. OK, not things like Lorenz or Marconi but plenty of all the other brands.

If you look at a lot of the online sellers plenty have lots and lots of stock of the valves we need. We are probably though the most specific in our needs when it comes to brands. As far as most of the vintage radio crowd is concerned as long as it works they could care less about matched tubes.

A little history about these types of tubes. There were millions upon millions of radio sets back in the old days that used these tubes. You could have found tubes like this at your local garage or corner store, they were as common as batteries are now.. In fact it was the batteries that were the expensive part of radio ownership back then.

Add in the huge amounts of military batteries produced from the mid 1940's until the late 1960's ( for this type of tube as far as I am aware) and you have millions of these little glass tubes laying about, never seen the light of day in wear houses just waiting to be discovered!

The other thing about these valves is the incredibly long life. To be honest one could use one set of tubes for the rest of ones life and they would probably outlive even the youngest owner here! They are very low voltage and unless you short them out or knock them about then they have such a long life.

I think Shikada san is a pretty focused young man and at some point he is going to have to take someone else on I guess to help with manufacture but.. This is not an amp one would purchase lightly. It has a pretty specific use and costs a great deal for that use so the market for it will always be fairly small I think.

I mean, this amp has been out since last year and I think we are up to #25 now, though of course the 06' is going to change things a bit as it is a lot cheaper and more compact.

Just some thoughts!
post #1208 of 3477
Couple of things this evening. I started listening earlier but noticed that when no music was playing there were some odd little electrical noises, little zing beep type noises.

At first I thought it was my 801 so I unplugged it but the noises were still there. Then I thought, "I wonder if it is something to do with low battery"? So I plugged the unit and and the battery was certainly low, it took nearly two and a half hours to charge!

Switched the amp on and listened and no beep zing noises! Can anyone explain that?

So, after that I thought, hmm, try some new tubes, a combination I have not tried before so I put in the Mil-spec Sylvania 3S4's and DF91 Mullards.

Oh goodness me! I love this combo, so musical, detailed but with much more bass weight but not at the expense of air and delicacy, really really like this combo!
post #1209 of 3477

using my holiday to relax so not that active this week in this thread, but just some thoughts:

 

my impression of shikada san is that he is a genius in amp design and he has (maybe a typical japanese property) a high level of honour, sense of duty, and dedication for each amp he delivers to make it perfect. also i can fully understand that maybe due to his limited english language skills communication in english is not so easy for him.

 

i got my amp in perfect condition, wonderful wooden box, carefully sent, inside the parcel he made a construction so the box was in the middle perfectly protected from all sides.

 

when i ordered my amp i got the response ' i will make you the best amp'.

 

i can understand one is interested in getting his amp but i also can feel of shikada san what he maybe thinks when sitting at night on the desk trying his best to build the perfect amp for one of us and then reading this thread where the same person at the same time may write something that hits him and his honour and dedication  while he works on the amp.

 

ok, that's business, accepted orders have to be delivered!

 

i can fully understand the questions behind, it's always a big step and critical point when a one man company has success and there may be the need to expand.

 

but as seen before shikada san goes the quality way, no external mass procuction, and i am absolutely sure he is working day and night that each amp gets delivered in perfect condition.


Edited by GermanGuy - 7/24/13 at 12:11am
post #1210 of 3477
GG, glad to see you posting, I was wondering if all was well.

I could not agree more with your thoughts!

Back to my "noise" Though I think in part it must be something to do with low battery I realized something. I think part of it as well was some air born electrical interference ! I thought I had heard the noise before and so put my amp closer to my computer and there was the noise again!
post #1211 of 3477

regarding the noise ian medium and woodcans mentioned (snak-crackle-pop?):

 

- could you please explain the noise you hear sonewhat more detailed?

- do you experience this noise with all tubes or specific one's?

- are the tubes standard or special ones (1u4, 1t4t (sf)  )?

 

 is the noise to hear if ( headphone connected):

 

- amp volume set to minimum, no cable, no player

- the same with cable

- the same, but with cable and player (player on)

 

- the same as above, but amp set to higher volume

 

- any other electronic devices near by, especially mobile phones?

 

if you hear something like a

 

'bbbssssssssss beep beep kgr kgr bsssssss gr zzz brrrrrrrrrrrrr'

 

it is the electronic activity of the player or RF interferences from another device.

 

try to exclude anything else beside the tubes testing the configs and steps above.

post #1212 of 3477

was just typing my last post when you posted yours. so we came to the same result - rf interferences??!!


Edited by GermanGuy - 7/24/13 at 12:07am
post #1213 of 3477
Thanks so much GG, your description of the interferences is EXACTLY the noises generated!
I do not have WiFi in my house so normally things are really quiet RF-wise unless I put the amp right up close to the computer but the first time this happened it was not near the computer so I am wondering if it was perhaps some radio or such from a neighbour?

The noises were regardless of where the volume was and kept going when I unplugged and switched off my player, yes, I think it was electrical noise in the air, it is very humid here at the moment, a lot of static in the air so I bet that makes things worse.

Thanks so much again GG! The only reason one notices this is the amp is so silent!
post #1214 of 3477
Quote:
Originally Posted by GermanGuy View Post
i can understand one is interested in getting his amp but i also can feel of shikada san what he maybe thinks when sitting at night on the desk trying his best to build the perfect amp for one of us and then reading this thread where the same person at the same time may write something that hits him and his honour and dedication  while he works on the amp.

 

I hope my comment earlier does not trigger this response from shikada san as it reflects my own hesitancy based on an earlier negative experience and has nothing to do with shikada san's performance or business ethics. Ian also mentioned that I post any questions on the Analog Squared Paper Facebook page but I am a bit hesitant to do so immediately, seeing as how I've already sent the information via the ASP Contact page and it might seem presumptuous  / ill mannered to so.  I would feel more comfortable waiting a few more days before doing so.  I guess what I was reflecting upon is how too much success can be just as destructive as not enough.  With the Thunderpants group buy, what was obviously a labour of love turned into a sequence of events which eventually caused the business to grind to a halt.  The larger demand, delivery expectations and increased workload were problematic. I just didn't / don't want to be part of something like that again where what was a joy turned into something else.

post #1215 of 3477

Ah well, if you will remove the amps tube guards and leave them off these RFI noises can happen. You could always drape a U shaped sheet of baking foil over the amp, though this would spoil the aesthetics somewhat. In fact tin foil has many practical uses...

 

 

Cheers,

Andy.

  

Quote:
Originally Posted by ianmedium View Post

Thanks so much GG, your description of the interferences is EXACTLY the noises generated!
I do not have WiFi in my house so normally things are really quiet RF-wise unless I put the amp right up close to the computer but the first time this happened it was not near the computer so I am wondering if it was perhaps some radio or such from a neighbour?

The noises were regardless of where the volume was and kept going when I unplugged and switched off my player, yes, I think it was electrical noise in the air, it is very humid here at the moment, a lot of static in the air so I bet that makes things worse.

Thanks so much again GG! The only reason one notices this is the amp is so silent!
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