My PA-1 PRE-AMP

[audio-gd]

My PA-1 PRE-AMP is complete ,it's sound us electron tube 12AX7 of RCA .it's cooperate my XA-100 ,the sound is best.


S/N
112DB(input is not load )


Max signal voltage output
19V RMS(THD<0.1%)

frequency width
20HZ-20KHZ(0DB)

5HZ-100KHZ(-1DB)

0-450KHZ(-3DB)

»ØתËÙ¶È
Slew rate Etc
65V/uS


THD
-105DB(1VRMS,1KHZ)

 

[audio-gd]

The circuit diagram

The circuit diagram

 

[audio-gd]

PA-1 and XA-1

PA-1 and XA-1,the CD player is Marantz CD16,,DAC is my builded TDA1541AS1. Sound box is my design for Scanspeak 8545K and ETON 25SD1

 

[MIKET]

Tell us more about your speakers

You said.
"Sound box is my design for Scanspeak 8545K and ETON 25SD1"
I would really like to build something similar, could you tell us more about your spaekers?

 

[audio-gd]

Hi MIKET

My sound box is a two resonance type. This type can let the woof too low .
My English is too bad ,so I can not say more , but I can shoe the blue print , and you can see it .
The file is see in Coreldraw 9.0 edition .
Welcome give me some idea

 

[audio-gd]

My sound box is a two resonance type. This type can let the woof too low .
My English is too bad ,so I can not say more , but I can shoe the blue print , and you can see it .
The file is see in Coreldraw 9.0 edition .
Welcome give me some idea

 

[analog_sa]

My PA-1 PRE-AMP

Very impressive circuit. I am not a big SS fan but could probably live with your pre.

 

[audio-gd]

The sound box's asunder circuit .
It's out off the sound box,and anear the amplifier ,but it must distance the amplifier least 30CM.
In this way , the sound is better.

 

[destroyer X]

Very good Audio-GD, put all good thing here...very good...more!

Very good...put more and more... i will be waiting for you.

very good.

thanks

Carlos

 

[jacco vermeulen]

Audio-GD,

are you going to add an English page to your homepage in the future ?

 

[SY]

"Sound box" = "speaker" or "loudspeaker"


But "sound box" seems so cool, I may just start calling my speakers that.

 

[audio-gd]

Hi jacco vermeulen

I'm making my English WEB now.
It will accomplish soon,but my English is too poor.

 

[destroyer X]

So, Made for me, special english for a special engrish spreaker...Me

I will visit my special Engrish home page.

hohohoho

Carlos

 

[MIKET]

Any chance you could post the attachment as a jpg or tif

Unfortunately I don't have Corel Draw and would love to see this drawing, any chance you could post the attachment as a jpg or tif?

My sound box is a two resonance type. This type can let the woof too low .
My English is too bad ,so I can not say more , but I can shoe the blue print , and you can see it .
The file is see in Coreldraw 9.0 edition .
Welcome give me some idea

 

[jleaman]

Wow Great work. I love that look. Keep up the good work. : O ) Who did the pcb Layout and where did ya get it from ?

 

[audio-gd]

Hi MIKET

I change the sound box to JPG ,but it 's definition had be low.

 

[audio-gd]

The severer .It's out of the sound box.