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This born to create a complete system cheap and good with hi-end sonic performances superior to many commercial medium price system.
To obtain the result:
COMPONENTS
photo (click to enlarge) |
description | price in euro | ||||||
LM3875 Premium Kit by
www.audiosector.com
with all Caddock resistances and components close to the Gaincard amplifier
produced by
http://www.sakurasystems.com
with a price about $,1500 and review on this magazine
http://www.enjoythemusic.com/Magazine/equipment/999/47review.htm model: 3875-KIT-P-DM |
70 | |||||||
In all my projects I am using a
DACT
stepper attenuator instead of the normal ALPS
or NOBLE solution, but in this case, with a limited budget i have used a blue
Alps 50k+50k. got from Audiokit webshop |
20 | |||||||
4 x Capacitor BHC ALT22A103CB040 40V
10000uF to create a more solid sound got from RS Components |
50 | |||||||
Nuvotem Toroidal transformer,160VA
2x18V got from RS Components |
50 | |||||||
4 x Loudspeakers connectors BPF 105 got from Audiokit webshop |
14 | |||||||
7 x RJP420 r 421 Chassis Female RCA got from Audiokit webshop |
20 | |||||||
Hi-Fi 2000 chassie GX 288 with internal size 230 x
280 x 80 got from Audiokit webshop (3 item) |
84 | |||||||
Solid Anodized Aluminium Knobs DCR AM 40 Black Dxh 40x22 and 20 x 22mm got from Audiokit webshop |
15 | |||||||
12 x Rubber Foot mm 38 diameter 18 mm height mm 6 holed got from Audiokit webshop |
10 | |||||||
Cdrom as transport (my choice has been a Philips DVD±R/RW/DL Lightscribe 18x with spdif output) | 30 | |||||||
Audiokit.ro boards (include Finished Board + VFD Lcd display) | 64 | |||||||
RC5 handset got from http://www.diy-high-end.com as part of CDPRO kit any Philips RC5 remote command could be used like the RC07104/01 still available on some Ebay stores |
15 | |||||||
2 x
12v
50VA Toroidal transformer for the CD Player got in any electronic components shop |
30 | |||||||
DAC with a sinlge TDA1543 by
https://diyparadise.com
no more available but could be replaced by the Mini TDA1543
got from http://us.hifidiy.net but available also as Ebay item All the resistor on the signal path must be replaced with MK132 Caddock and all the electrolytic capacitors with Sanyo OS-CON.
|
32 | |||||||
USB to Spdif converter got from http://us.hifidiy.net but available also as Ebay item |
30 | |||||||
PIMETA headphone
amplifier. All the resistor on the signal path must be replaced with MK132 Caddock and all the electrolytic capacitors with Sanyo OS-CON.
|
20 | |||||||
50w R-Core transformers R26-10 by http://www.diyclub.biz/ | 12 | |||||||
2 x Diode bridge 200v 3A, 3 x 2200uF 35v electr. capacitors and linear regulator (7812 and 7912) to create the power supply for the pre-ampl. got in any electronic components shop | 20 | |||||||
Power supply 15A switches (3 items) got from RS Components
|
16 | |||||||
SilverMIca Zero-One by Voodoo Cable custom 2 x 25-35cm | 70 | |||||||
Many MK132 Caddock resistors and Sanyo OS-CON capacitors to get the best parformances | 60 | |||||||
Shipping costs of these parts | 100 | |||||||
After a comparation test with of
Wharfedale
8.3, my Neo-fone and my
Apostrophe' the my commitment have choiced the last
one.
The Apostrophe' are full-range loudspeakers using a dual cone driver unit ZS 266-8-1 (125 euro each driver + 180 euro the enclosure + 200 euro the black finish). The Sound of The Valve Full-RangeZS 266-8-1 got from Audiokit webshop
|
430 - 630 |
The total are:
CD PLAYER or CD TRANSPORT
It use the Audiokit.ro boards like CDROM controller and the spdif output is got from CDROM/DVD unit (keep attention because only few DVD have spdif output).
A strong 3.3ohm 10w resistor has been used to reduce one 12v secondary of the transformer.
PRE-AMPL
To convert the spdif signal coming from cd transport or from usb2spdif converter it use a DAC with a sinlge TDA1543 by https://diyparadise.com.
This DAC has been choiced for the natural sound produced and it is very similar to TDA1541A.
The I/V convertion on the DAC is created using the passive method with Caddock MK132 resistors.
A simple high frequency filter is created with 1-2.2nF on output.
AMPLIFIER
Schematic, photos and
measurements
I have used in all the measurements the Clio system by Audiomatica with the Transit by M-Audio to use the USB port of my portable pc (instead of the PCI audio board) and with the Audiophile USB by M-Audio to increase resolution and to use my laptop.
Here some test on 5 ohm load at 5w and 29w.