Onkyo DX-788F

[PMik]

Hi All

I have come across a Onkyo DX-788F with dual 1Bit DACs/"AccuPulse" technology/8,9Kg
the unit is in a "mint" condition visual and technical.

I like its basic "skills" but i want to raize the performance a few steps futher by adding a new clock (DIY), LC Audio AD8065 modules, oversiezed power-supply, de-coupling etc.

But to do this i need a schematics, can anyone help me out???

In forward thx!

Ps. Even a DX708 schematics could be usefull for me to have

 

[PMik]

My seach is over, just recieved the service manual

 

[mlloyd1]

Please post what you end up doing and the results you get. I have a DX6800 that is kinda similar that I will cut into at some point.

Glad you found the manual. I had it also.

I always thought the initial (as in not the split-off joint company) Integra line of the Onkyo product family was fairly well-made and pretty decent sounding product. I actually miss my DX5700 CDP in a strange sort of way. I did a lot of mods and got a pretty good sound out it after a while.

mlloyd1

 

[PMik]

I will share progress/result for my Onkyo

For the moment im finalizing a Sony CPD-X55ES mod for a friend, a lot of capacitors has been replaced/added, some of them is large inter-tech capacitors ....pure overkill! but it is very audible in the most positive sence

Placement of the Inter-tech's

2x 15µF/250V- analog stages reg. supply

2x 80µF/250V- analog stages reg. supply

2x 33µF/250V- par. with 5x 0,22µF/400V- par.
This capacitor located in the signalpath for the output.

4x 33µF/250V- digital power-supply in pairs, located pre-reg and after reg.

As it is now 4x LC8065 will be seated in the DIL-8 sockets, replacing original NE5532s

and if my friend got more money left in his "Hi-Fi" budget maybe even a LC XO3

 

[PMik]

Recieved the LC modules for the Sony two weeks ago
Instantly it was obvious these piggy-bag 145MHz op-amps made a BIG difference compered to NE5532.
My first comment while listening to the CD-play which wasnt up to its working tempereture, this is much better soundstage and its like a curtain is dragged away.
price of these op-amps compered to the gain they do,
if you have a cd-play with betwin 1 to 4 op-amps in the analog stages............go for these "piece of wire with gain" op-amps


Follow up on Onkyo:

The dude which offered me the deal never send the items i bought from him (Onkyo CD + a pair of B&W 600i speakers)......no need to express deeper what i mean of this person
Im just happy i didnt send the payment in forward, payment was on delivery

 

[cosworth95]

Hello from the USA,would you be kind enough and tell me where did you find the Onkyo DX-788F cd player ? Do you know if i can get one as well ? Would you consider selling it to me ? I would pay handsomely for it ? Please email me at cosworth9@hotmail.com I would appreciate any help you can forward ?
Best Regards.
Z.K.

 

[cosworth95]

This message is to the Member PMik who recently found an Onkyo DX-788F and was wandering if he can email me and let me know where he found one,i would apprecite any information if it helps me find one as well,since i would pay top dollars for one.Best regards.

 

[PMik]

Hi cosworth95

I located it at a second hand buy/sales site ...but as you can see the owner was an imposter

 

[PMik]

Ps. I now use a Pioneer PD9300 with a LC Clock and a lot of cap mods
suits my needs very well