Zenquito 5x50W : nearly the building end - diyAudio
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Old 26th January 2004, 12:51 PM   #1
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Default Zenquito 5x50W : nearly the building end

I started this project in septembre 2003. At this date, what i wanted, was to built a power amp to ugrade my Hifi and HC system. The power amp was design to drive a complete Fostex Large Band speaker system with a confortable global sensitivity (about 95-100db). My multichanel integrated power amplifier (Yamaha RXV1300) will be use as decoder and preamp. in Hc configuration. I am building a stereo preamp for Hifi configuration that will switch with the RVX1300 to schear the power amp front chanels.

After net surfing and many forum discussion i planed to build à Zenquito Evolution. This amp was designed by JM. Plantefève - "The french Nelson Pass"-

My unit will be a 5x50W AB class for rear and front center chanel and A class up to 25W for front chanels (After 25W it switch in AB class).

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Here's some computer drawings from my project.

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Marc
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Old 26th January 2004, 12:59 PM   #2
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Thye PSU is based on one 625Va 2x25V toroidal transformer, 2 diode bridges as rectifier, and a CRC filtering. For filtering i use 14 C154 22000µf/40V capacitor and 25W 1Ohm resistors.

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The power is distributed through 2 chanels :
- Front chanel
- Front center/ rear chanel who can be turn off when the use is only hifi music. That why i have relays befor the 4 first C154.
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Old 26th January 2004, 01:13 PM   #3
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Enclosure Building

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Old 26th January 2004, 01:17 PM   #4
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Few works after

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After wood tinting and glossy varnishing

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And drilling for Heat dissipation

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Old 26th January 2004, 01:22 PM   #5
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The fives amp PCB with all transistors stages matched

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Next i started the wiring

The ground plate

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All wires have the same length.

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Old 26th January 2004, 01:23 PM   #6
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Default Pic's

Hi,

This is really beautifull, WOW!
Nice work

Can you tell me how you manage to put somany pic's in one single post?


Best regards,


Audiofanatic
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Old 26th January 2004, 01:28 PM   #7
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Default Re: Pic's

Quote:
Originally posted by Audiofanatic
Hi,

This is really beautifull, WOW!
Nice work

Can you tell me how you manage to put somany pic's in one single post?


Best regards,


Audiofanatic
Thanks,

I have many pics in stock..................I take them regulary after new building step....

Marc
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Old 26th January 2004, 01:29 PM   #8
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Default Re: Pic's

Quote:
Originally posted by Audiofanatic
Hi,

This is really beautifull, WOW!
Nice work

Can you tell me how you manage to put somany pic's in one single post?


Best regards,


Audiofanatic
He is linking from his own site.

thus [ i m g ]put here your site with the picture [ / i m g ] (without the spaces.

And Idefixes: Great work, I like your neat lay-out.
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Old 26th January 2004, 01:32 PM   #9
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Thanks LaMa!


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Old 26th January 2004, 03:59 PM   #10
DarkOne is offline DarkOne  Slovakia
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Very nice work. I've showed these pictures to friends, so everyone wants to order one.

How does it sound?
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