Hello Silvio...thank you
Boys!.... Nabuco Eletronica has produces a nice subwoofer filter and it works fine together DxS, then you gonna have a subwoofer system.
Nabuco Eletronica, a friend, has provided us a subwoofer filter with variable band pass adjustment and we can modify to be a bass...
I am working hard to help to pay my daughter's college.... sweet daughter is studying Medicine and this is costing more than 2000 USD per month....i have not that money, so, i am working hard selling in Brazil and outside Brazil in order to complement money to face the expenses with that...
Here you have a text about the DxS:
The one exceeds our spectations.
THD less than 0.02% tipical 0.012%
Output power 8 ohms = 143 Watts RMS
Output power 4 ohms = 250 Watts RMS
Sensitivity - 630 milivolts peak to maximum power (adjustable)
Input impedance: 27K
Flat from 3 hertz to 500...
Yes, i know about Jim..... he asked me the layout to produce pcboard to a few members.... i fail not to ask you first..... i gave him the layout...then i further discovered he had whole world as close group of friends...he fooled me.
But i am protected, his pcboard is one defective we made...
Juan already sold almost half of the batch of pcboards
well...more 30 days we gonna have Zimmer pcboards from Brazil...same price..almost same quality.... layout a little bit different but the same circuit.
I just cannot wait to see your pictures Stewin
Please...post them...all them please.
Juan is selling pcboards... 25 percent sold in less than 15 hours... here you see a picture, he is already assembling his own unit.
4 pcboards arrived with minor failures in the silk screen..we have reserved...
Picture of me and my sons
Image taken in the month of may 2013, in Olinda, Pernambuco - Brazil
In the picture, the soldier is Juan Vargas Diaz...he was repairing air conditioning machines in Iraqui...not a figther..thanks God by that!
Juan is the layout designer...the old folk is me...
It is a bass amplifier, or a subwoofer amplifier..goes to 200 hertz only.
It was made to match Dx Blame ST and Dx Super A being an complementary channel to reproduce only bass or subwoofer tones.
It was a sold design, made to Miguel Nabuco (Mitchel) that allowed me to publish two low power...
Here you have the schematic from the Dx Super A and also the Dx linear supply
I suggest you to use them together..the supply must receive 46 to 48 volts DC in it's input and should be adjusted to 42 volts and nothing more because the BD139/140 cannot hold more than that...they can be...
Power supply, the Dx Power Supply, may look this way
It gonna be good to feed two channels pumping 350 watts RMS each channel, distortion of 5 percent THD, 2 ohms loads.
This amplifier is 80/150/330 watts RMS with low levels of distortion...8/4/2 ohms.
Supply is to reduce cost of electrolitic...
A dear friend from Bahrein have assembled the Dx Super A
He said the sound was vastly superior to other models from the Dx Corporation (The Union of world audiophiles)
Here you have some pictures.
Wind tunnel style.
As you see he etch the pcboard at home using pdf layout published by Juan...
What is going on here
I have closed my forum...too much spammer entering publishing porno images..also advertisers entering publishing medicine drugs...the man that was taking care of my forum could not filter that...then i decide to block the forum not to be helping people to publish dirty...