This is the DHR.... Dx High Resolution Turbo

[Masterinvi]

uncle carlos i would like to inform you that i have made 5 dxturbo amplifiers this week. You really rock uncle carlos, all of my clients were satisfied, Those folks love your bass. Your amplifiers can now be heard not only in the city but also in remote areas and in mountains hahahaha. Of course a big profit for my business. I awe a lot from you. Your support and teachings made my study in electronics easier. I have understood now how amplifiers work, i can atleast easily spot the problem in amplifiers either newly built or manufactured one. All your teachings will always in my mind, and continue to learned from you because i know you love to give what youve learned. I hope you will continue to be like this uncle carlos, good teacher, good friend. I also hope that DIYAUDIO may have many more Carlos to come.

 

[alex mm]

Pictures.......

... have you made 5 amplifiers in one week ? Great , somes pictures to see your work , and which PCB have you used to prepare , amplifiers ?

Regards Alex mm.

 

[alex mm]

My files ......my pictures ....

....my files about this DX DHR amplifier and two pictures with finished board.

Regards Alex.

 

[AndrewT]

Hi Alex,
very neat and clean.
Have you tested them yet? or listened to them? or cased them up?

 

[Masterinvi]

actually that was 9 and 3/4 days to be exact. pictures? dxturbos are already in customers hand sorry bout that.

@ sir alex , is it hard to finish 5 same circuits in 1 week?

 

[Masterinvi]

by the way sir alex, your work is so net, my circuit is very far from that. that was only made by marker pen, then etch and hole and plant the parts.
hope someday i can make same as yours.

regards

 

[destroyer X]

hmmmm.... so you sold without profit....goood!.... this is

nice...obbeying rules....no profit!....hehehhehe... fine.

Thank you Masterinvi.

regards,

Carlos

 

[Masterinvi]

uncle carlos, have you tried running the dxturbo with +-90 volts? have you noticed that in 90volts the bass is very much clean and hard? seems that it will penetrate deep to your heart. oh man!! it needs 8 pairs of output and 2 blowers to drive 2 ohms. i tried it last time with only 4 pairs and no blower(just outside in casing) .only 2 songs, 2 outputs were burn. hahahaha, but if 8 pairs with blowers surely it can handle. No need for 16 pairs i guess.

 

[destroyer X]

No...i have not tried with so high voltage.

You will need a lot of transistors in the output..but will sound fine i am sure.

regards,

Carlos

 

[meanman1964]

A few questions regarding the collector resistor(2,2 Ohm) of the output trannies what wattage need they to be 2 Watt or 3 Watt?
Can i use the MJE15030 instead of the 2SC4793(Q6,10)?
MJE15031 instead of the 2SA1837(Q11)?

 

[destroyer X]

Colector resistor?....you mean base stoppers maybe

only 1/4 watt to the stoppers.

Yes, you can use these transistors.

regards,

Carlos

 

[meanman1964]

Yes, u're right

 

[destroyer X]

Here, once again, to new forum folks, the schematic

Attached.

regards,

Carlos

 

[destroyer X]

Greg pages show Dx amplifier details

Greg's Web Site

regards,

Carlos

 

[destroyer X]

listen this amplifier recorded live using digital camera

YouTube - Dx Amplifier - DHR Turbo playing

regards,

Carlos

 

[shelma]

Hi Carlos

I am building one of DHR turbo do u have the specs and what care should be taken to assemble the complete amp

Regards
Stanley

 

[destroyer X]

Here you have some specifications in a short form

more details, please read this thread since the first post as i cannot remember..a long time has passed since this amplifier was released:

YouTube - DHR Turbo specifications is = FINE

This amplifier may need more output pairs depending how huge is your power supply....this will depend on the power supply power, power supply voltage and the speaker (s) you gonna use.

regards,

Carlos

 

[wattaniya]

why is alex board showing 15 outputs and in shematic 12 outputs.
which one is correct. pls share the pcb layout and commponent layout in pdf.
thanks.

 

[meanman1964]

Like to know if people are interested for a groupsbuy of this amp if yes I will start a new thread at the groupsbuy section

 

[logawamania]

Greeting from Indonesia.

I want try to build this amp..