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

[audio-gd]

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]

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]

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...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 ?