Analog Squared Paper Discussion Thread.

[Kageyuki Shikada]

Thank you, I just shared on the Facebook page about the location of the gain trimmer.

Hi Adding for future reference, the attached picture is for Tur-06 and the arrows depict low and high gain switches, when shipped it is at medium gain. I got the below information from Shikada while placing an order to use the Tur-06 for headphones and iems and how to get more juice when I use 600 ohms headphones and below change in settings can help.

 

[sanjaycr]

Thank you, I just shared on the Facebook page about the location of the gain trimmer.

https://www.facebook.com/analog2p/photos/a.268151103296674/4921540311291040/

good information

 

[sanjaycr]

https://www.facebook.com/analog2p/photos/a.268151103296674/4921540311291040/

good information

Can you also list down what headphones it can power at 0 db and what headphones might need the change to max gain value please? Helps understand the capability of the product.

 

[audionewbi]

Has anyone learned anything about TU-05 Mk2? I want soemthing tubey for IEM usage, all my IEM have 4.4mm cable, will Tu-05 be a true balance out?

 

[crazyleaf]

Has anyone learned anything about TU-05 Mk2? I want soemthing tubey for IEM usage, all my IEM have 4.4mm cable, will Tu-05 be a true balance out?

It is a single-ended transformer amp
but you can request a 4.4mm output (+extra cost) for convenience

 

[bmichels]

I have TU-05 (that I still owe) and TUR-06 (that I sold) and now... I consider buying the new TUR-08 for it's extra power compared to the TU-05 which is All-tube.

I wonder how the TUR-08 sound compared to the TU-05 ? And also, what is the battery life ?

 

[bonitomio]

I am very interested to know how the TUR-08 compares with the TUR-05

 

[Kageyuki Shikada]

I have TU-05 (that I still owe) and TUR-06 (that I sold) and now... I consider buying the new TUR-08 for it's extra power compared to the TU-05 which is All-tube.

I wonder how the TUR-08 sound compared to the TU-05 ? And also, what is the battery life ?

Thank you for your patronage!

The TU-05's vacuum tube may be small for a flat drive type headphone. There is no problem with the final D8000, but the LCD series is difficult.

The TUR-08 was designed to improve that. Especially in the case of BTL output, it is high power. It's difficult to put into words the tendency of the sound, but the composition is a discrete differential buffer with voltage amplification by vacuum tubes, so it inherits the TUR series. Since it uses elements with a larger sink current than the TUR06, the braking force is strong and the sound is calm. Battery life is about 6-7 hours, almost the same as the TU05mk2.


Another option is the 05desktop, a high power version of the TU-05. The output tube uses 12FQ7 in Para-ingle, so it has 10 times the power of TU-05. Since the transformer is large, the sound tends to be deep in the low range and calm in the high range. (The magnetic material is Hitachi Metals' most advanced magnetic material.)

However, it is not portable as it is AC powered and requires an external power supply. Since it can also be driven by a 12V3A power supply, it is not impossible to use it outside if you prepare an external power supply.

 

[audionewbi]

Thank you for your patronage!

The TU-05's vacuum tube may be small for a flat drive type headphone. There is no problem with the final D8000, but the LCD series is difficult.

The TUR-08 was designed to improve that. Especially in the case of BTL output, it is high power. It's difficult to put into words the tendency of the sound, but the composition is a discrete differential buffer with voltage amplification by vacuum tubes, so it inherits the TUR series. Since it uses elements with a larger sink current than the TUR06, the braking force is strong and the sound is calm. Battery life is about 6-7 hours, almost the same as the TU05mk2.


Another option is the 05desktop, a high power version of the TU-05. The output tube uses 12FQ7 in Para-ingle, so it has 10 times the power of TU-05. Since the transformer is large, the sound tends to be deep in the low range and calm in the high range. (The magnetic material is Hitachi Metals' most advanced magnetic material.)

However, it is not portable as it is AC powered and requires an external power supply. Since it can also be driven by a 12V3A power supply, it is not impossible to use it outside if you prepare an external power supply.

For iem lovers, ( dita perpetua and ier-z1r) what can you recommend? Thank you.

 

[yiokuan]

Thank you for your patronage!

The TU-05's vacuum tube may be small for a flat drive type headphone. There is no problem with the final D8000, but the LCD series is difficult.

The TUR-08 was designed to improve that. Especially in the case of BTL output, it is high power. It's difficult to put into words the tendency of the sound, but the composition is a discrete differential buffer with voltage amplification by vacuum tubes, so it inherits the TUR series. Since it uses elements with a larger sink current than the TUR06, the braking force is strong and the sound is calm. Battery life is about 6-7 hours, almost the same as the TU05mk2.


Another option is the 05desktop, a high power version of the TU-05. The output tube uses 12FQ7 in Para-ingle, so it has 10 times the power of TU-05. Since the transformer is large, the sound tends to be deep in the low range and calm in the high range. (The magnetic material is Hitachi Metals' most advanced magnetic material.)

However, it is not portable as it is AC powered and requires an external power supply. Since it can also be driven by a 12V3A power supply, it is not impossible to use it outside if you prepare an external power supply.

Kageyuki San, since you’re here, any timeline TR17hp on sale?

 

[Kageyuki Shikada]

For iem lovers, ( dita perpetua and ier-z1r) what can you recommend? Thank you.

I recomend for TU05mk2 or TUR-08
Dita Perpetua : Low Z output
IER-Z1R : Mid Z
(TUR08's gain adjustment is stepless.)
The discrete portable TR-17hp currently under development also has sufficient power. The TR series may also be an effective option if you value power and fatness of sound rather than the clear feeling of a vacuum tube.

 

[Kageyuki Shikada]

Kageyuki San, since you’re here, any timeline TR17hp on sale?

Sorry. not yet.
I'm currently making final adjustments at my desk.
We hope to start selling by the end of September.

 

[eskamobob1]

Sorry. not yet.
I'm currently making final adjustments at my desk.
We hope to start selling by the end of September.

The 17 going to be a current drive amplifier like the 07sp?

 

[andersos]

Sorry. not yet.
I'm currently making final adjustments at my desk.
We hope to start selling by the end of September.

Will TR-17HP be available soon?

 

[yiokuan]

Will TR-17HP be available soon?

FYI..Kageyuki San responded to my email on 16 Feb 2024.

We have confirmed the NOSDAC order. I will send you the invoice today. thank you.

Thank you for your expectations regarding the TR-17hp.
The circuit on the final board has increased the efficiency of the power supply, so it will run for more than 6 hours.
Please wait for the announcement.

thank you!
Regards.
Kageyuki S