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Analog Squared Paper Discussion and Appreciation Thread. - Page 196

post #2926 of 3470
Quote:
Originally Posted by ianmedium View Post

Thanks Boringer, just posted the link on the ASP Facebook page. One thing I think I might add that explains the grain he hears with the LCD X is that I find grain on my LCD 2's as well. I don't experience grain on any other headphone including my ultra revealing ER4S's.

I wonder if it is the cleanness of the amp revealing a sonic signature in the Audeze's that other amps do not show, especially solid state amps.

I understand what he means about bass depth though. That is not an issue for me as I am not a deep bass person, more a texture bass one. It does not surprise me he finds the 900's a great pairing in that respect as they have substantial bass and probably balance out more with this amp than any other.

Excellent honest review though I thought.

I think you may be right Ian, with my 900's there is no 'mellow' or 'grain' whatsoever in describing its sound. Quite the opposite, in fact. Which is part of the reason I love the combo.
post #2927 of 3470
Quote:
Originally Posted by woodcans View Post

I think you may be right Ian, with my 900's there is no 'mellow' or 'grain' whatsoever in describing its sound. Quite the opposite, in fact. Which is part of the reason I love the combo.

Yeah, I have done extensive listening with the LCD's and to be honest I do not enjoy them anymore due to that grain and to be honest darkness which I think is the mellow. I tried the LCD3's a while back with the amp and though a bit cleaner it still had that grain.

My T5P's are probably a bit "light" for mosts tastes but I am happy to trade bass depth for texture and they are very fast clean sounding headphones so if there were grain in the amp these would expose it.

I must try the 900's one day or perhaps the big JVC's but to be honest with the PF's which give more depth of bass and the T5P's which are just luscious sounding with this amp I am in not too much of a hurry (probably because if I heard the 900's I would want them biggrin.gif).

I popped the mil-spec Ken-Rad 3S4's in at the weekend and am loving the detail retrieval into the mix they bring to the table in collaboration with the Brimars. Not a bass lovers combination but if you like texture it is wonderful, they lift veils previously not thought there off the sonic landscape. Our old friend Nick Drake especially is wonderful with this combo!
post #2928 of 3470
Quote:
Originally Posted by GermanGuy View Post
 

another solution to charge and run the tu-05:

 

while you can not use this solution to run the tu-05 connected to an usb port, this solution itself is complete and provides additional battery power for the tu-05.

 

for this solution you need an usb battey pack with additional 12v output like this one i am using:

 

http://www.conrad.at/ce/de/product/251166/Tecxus-Mobiler-Zusatzakku-TP-10000-LiPo-10000-mAh-17250-powerBank-TP-10000-Mobile-Stromversorgung-Zusatzakku-Energier?ref=list

 

 

it provides two USB 5v 2100mA outputs and in addition an output with 9v or 12v 2100 mA and comes with lots of adapters. it can be charged while beeing used.

 

the 12v output is what is needed for the tu-05 car charger.

 

i think this is a similar one that can be found on amazon:

 

http://www.amazon.com/EZOPower-10000mAh-Rechargable-Protective-10-1Tablet/dp/tech-data/B00AFSOH8I/ref=de_a_smtd

 

the easiest solution is to connect a fitting connector instead of the car connector that is provided with the car charger or as i did to have everything somewhat smaller, to extract the car charger pcb board and mount it using a new, smaller case:

 

here you see the car charger internal pcb board:

 

 

 

in general it is enough to provide a new input connector that fits the output jack of the usb power pack:

 

 

i used some red shrink-on tube to visually see that this is the input connector.

 

as i had no small case i made one out of a piece of plastic (tupperware):

 

 

here you see the pcb mounted with some superglue around the led and the cables:

 

 

case closed with superglue:

 

 

and here with some strong tape around (of course looking somewhat improvised):

 

 

this is the complete set to charge and run both the external usb power pack and the tu-05:

 

 

so while it is not possible to directly run and charge the tu-05 with usb power, i think it nevertheless is very usefull as it provides additional power for the tu-05 when on the road, you can not only charge and run the tu-05 but also your mobile phone, tablet and any device with usb, 9v or 12v input, it's real portable (and much easier to modify only the car charger than building the usb charger interface i posted before).

 

Short note: be very careful and check the right polarity of the new connectors. btw, i have tested everthing and it works!

People like you make me feel like i'm a waste of oxygen. Damn impressive. 

post #2929 of 3470

the modder 's diary part 11:

 

got a lot of parts and components today, so i was able to start assembling the double mono tube section for my extended tu-05 case:

 

to get everything as compact as possible, i used different tube sockets with aluminium holders, drilled the needed holes into some copper plated pertinax and some tube prototyping boards and to get it really thin embedded the aluminium tube holders into the copper plated pertinax piece and used rivets to mount the tube holders:

 

 

Read more: (Click to show)

i then used superglue to mount the tube sockets. also here the orientation of the tube socket pins is optimized to connect the power lines as short as possible:

 

 

here you see also the board for the second layer (signal input / output) after having finished the first layer (tube filament / heater power):

 

 

this is a fancy material, black, consistency like rubber, made out of ferrite, so absorbing high frequencies and dampening rf interferences i will use to shield the tube sockets and electronic parts:

 

 

this is the back with the mounting screws for the next layers:

 

 

i positioned the screws to mount the tu-05 tube panel just opposite to the original design, so it is very easy to remove the tu-05 tube panel because the nuts are outside:

 

 

This is the assembled first layer for the tube filament / heater power lines and electronic components, pin 4 and  5 of the df91 tube sockets are connected to be compatible with the df97 tubes:

 

 

 

wires from left to right:

 

- green-yellow - power for the second part of the dl92 heater (pin 1 - for powersave or 1s4 compatibility switched off) left channel

- blue and nearly not to see brown - ground and power - left channel

- in the middle - green-yellow - protective ground (shielding of wires and components)

- blue and brown -  ground and power - right channel

- green-yellow - power for the second part of the dl92 heater (pin 1 - for powersave or 1s4 compatibility switched off) right channel

 

here you see the finalized filament / heater layer with the tube prototyping board for the audio in/out layer mounted:

 

 

the benefit of this design is that all the power lines are always in a right angle to the signal lines, so minimizing crosstalk, interferences, inductance:

 

 

and here with the tu-05 tube panel mounted:

 

 

 

 

 

the benefit of the ceramic tube sockets i use here is that due to the round holes for the tube pins it is not possible to damage the tube socket contacts when plugging a tube in:

 

 

the wires of the power lines are very interesting and cut out of a three wire cable originally desigend as power cable, 1.5mm x mm,  ofc copper, AND each wire itself shielded by a layer of ferrite, so all the power wires are self absorbing high frequencies, whether induced or transmitted! i have choosen this wires to absorb or dampen higher frequencies possibly emitted or part of the voltages of the internal switching power supply board(s).

 

next steps will be to assemble the audio input / output layer and all the electronic parts, resistors, capacitors on the second layer

 

here you can see in addition the third layer board for the anode voltage connections and parts / components:

 


Edited by GermanGuy - 1/1/14 at 4:04am
post #2930 of 3470
Quote:
Originally Posted by awry View Post
 

People like you make me feel like i'm a waste of oxygen. Damn impressive. 


thanks a lot for the "damn impressive". to comment the first sentence -  am sure that nobody is a waste of oxygen (okay, it  is part of your compliment) - if you knew all the areas where i have a big lack of competence, for example ................... ....... ............... ............................ .......... ................. ................. ................... ........... ................... ...................... ............................ .......... ................. ................. ................... .................... .......... ................ ...... ............................ .......... ................. ................. ................... .....................  ......... .................. ....   .......... ................. ........... ...... ............... .... .............................. ...... ............... ...........................   . .......... ......... ........ ................. ....... ............ ......... .................... ...................... ............................ .......... ................. ......  ........... ............  ....... ....................... ....... ...................... ............................ .......... ................. ................. ................... ............ ....... ........... ......................    .......... ................. ..........  ....... ................... ........... (censored by poster), you would not feel this way.

post #2931 of 3470
Oh my goodness GG, you are doing an exquisite job of work with this, it looks all so thoughtfully and professionally done, well done you!
post #2932 of 3470

thanks a lot!

post #2933 of 3470

I agree. GG your work is meticulous and so neat it really does look like a professional build. 

 

The modders diary with it's excellent photo's and clear descriptions is a real treat to read.

 

Quote:

Originally Posted by ianmedium View Post

Oh my goodness GG, you are doing an exquisite job of work with this, it looks all so thoughtfully and professionally done, well done you!
post #2934 of 3470

Just had an update from Facebook. The prices for these amps will be increasing starting tomorrow.

post #2935 of 3470
Quote:
Originally Posted by sidrpm View Post
 

Just had an update from Facebook. The prices for these amps will be increasing starting tomorrow.

Crap. i just placed an order yesterday and they haven't sent me the invoice. Bet it'll be the new pricing. Any idea what the new pricing is gonna be?

post #2936 of 3470
Quote:
Originally Posted by awry View Post
 

Crap. i just placed an order yesterday and they haven't sent me the invoice. Bet it'll be the new pricing. Any idea what the new pricing is gonna be?

No idea. However Shikada-san is extremely honest and fair, so I am sure he can resolve your situation. 

 

I just hope the price increase will be minor, as I am demo-ing the 2 amps for the first time on Friday at The Mook Headphone festival here. Crossed fingers. :confused_face: 

post #2937 of 3470
Tur06 new price is 69000 yen. And there is new option for high quality cap 3000 yen. Tube set 4000 yen. Leather case is 25000 yen now. Price for the tu-05 is still the same.
Edited by xplosive - 12/12/13 at 7:43am
post #2938 of 3470
Where did you obtain the new prices from? Just curious as of 18:27 GMT the Analog Squared website tu-06 page still has the old pricing displayed.

Thanks.
Quote:
Originally Posted by xplosive View Post

Tur06 new price is 69000 yen. And there is new option for high quality cap 3000 yen. Tube set 4000 yen. Leather case is 25000 yen now. Price for the tu-05 is still the same.
post #2939 of 3470
Quote:
Originally Posted by smial1966 View Post

Where did you obtain the new prices from? Just curious as of 18:27 GMT the Analog Squared website tu-06 page still has the old pricing displayed.

Thanks.


just checked the website, the high quality transformer option is new for me, the high quality capacitor option was available when i ordered my tu-05 with that option. if you don't see new prices, you may have to clean your browser cache.


Edited by GermanGuy - 12/12/13 at 11:52am
post #2940 of 3470

a lot of new parts arrived today:

 

 

this includes a set to make custom pcb boards, two sets of small input transformers i want to test, a lot of ferrite cores and pearls, capacitors, high precision resistors, lots of voltage regulators and small heat sinks, inductivities, high precision small potentiometers, an additional alps input potentiometer, diodes, solder, 3.5mm input jacks.

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