Hi Clayton.
Good choice with your "Neutron Star 2 Audio Reference" (incl.the PSU).
It's fine music ...
Congrats.
Karel
As soon I get some time I'll try to document this. There are lot of other mods that I use in Quantum. I will document and share them in coming days.
Instead Arcotronics I solder Vishay 1836.
I solder them directly on ribbon.
Also, over turntable motor I have added a 10nF Mundorf EVO PIO capacitor.
Brgds,
Tibi
Awesome Shiga MKII implementation by one Romanian diyer.
Brgds,
Tibi
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Brgds,
Tibi
Attachments
Here are prices for 1st december sale:
Shiga MKII standard will get 70 euro discount and sale price will be 99euro.
Shiga MKII Level1 will get 200 euro discount and sale price will be 499euro
Shiga MKII Level2 will get 300 euro discount and sale price will be 899euro
Shiga MKII Level3 will get 450 euro discount and sale price will be 1349euro
Quantum Standard will get 2000euro discount and sale price will be 1990euro
Quantum High Grade will get 3000euro discount and sale price will be 4990euro
Quantum Ultra high grade get 4500euro discount and sale price will be 7490euro
Bluthor will get a 20 euro discount and sale price will be 59euro.
Brgds,
Tibi
Shiga MKII standard will get 70 euro discount and sale price will be 99euro.
Shiga MKII Level1 will get 200 euro discount and sale price will be 499euro
Shiga MKII Level2 will get 300 euro discount and sale price will be 899euro
Shiga MKII Level3 will get 450 euro discount and sale price will be 1349euro
Quantum Standard will get 2000euro discount and sale price will be 1990euro
Quantum High Grade will get 3000euro discount and sale price will be 4990euro
Quantum Ultra high grade get 4500euro discount and sale price will be 7490euro
Bluthor will get a 20 euro discount and sale price will be 59euro.
Brgds,
Tibi
BluThor installation is quite simple. Here is how was done in Quantum.
BluThor have one REED relay for each button. REED relays are commanded by an ATmel.
Power on/off is done trough a more powerfull relay able to sustain 5A @250Vac.
BluThor may be installed in any CD player that make use of push buttons for play, stop, etc.
An old CD player without remote may gain remote control via blutooth with BluThor.
Regards,
Tibi
BluThor have one REED relay for each button. REED relays are commanded by an ATmel.
Power on/off is done trough a more powerfull relay able to sustain 5A @250Vac.
BluThor may be installed in any CD player that make use of push buttons for play, stop, etc.
An old CD player without remote may gain remote control via blutooth with BluThor.
Regards,
Tibi
Attachments
Last edited by a moderator:
Heat sink for LA6541
Hello Tibi,
I saw on the photos that you use the LA6541 with heat sink in the Quantum CD.
When I asked you a year ago the answer was that no heatsink is necessary with the Shiga MK2.
But I assume that it will bring a benefit, otherwise you would not use it - longer lifetime ?
Best regards
Christoph
Hello Tibi,
I saw on the photos that you use the LA6541 with heat sink in the Quantum CD.
When I asked you a year ago the answer was that no heatsink is necessary with the Shiga MK2.
But I assume that it will bring a benefit, otherwise you would not use it - longer lifetime ?
Best regards
Christoph
Hello Christoph,
No heatsink is necessary. PCB was designed to disipate LA6541 heat.
Quantum is a closed enclosure with no ventilation.
Qrgds,
Tibi
Hi Tibi,
So do you recommend mini-regs [adj] for V1-V2 or just LT1086 for best performance? I do have salas reflecktor-d's also. If I use reflector-d is there a recommended wiring configuration. Can I use mini-reg on V3-V4 and reflector-d V1-V2 since you can't mix fixed and adj mini-regs? Thanks for time and info!
best regards,
Steve
So do you recommend mini-regs [adj] for V1-V2 or just LT1086 for best performance? I do have salas reflecktor-d's also. If I use reflector-d is there a recommended wiring configuration. Can I use mini-reg on V3-V4 and reflector-d V1-V2 since you can't mix fixed and adj mini-regs? Thanks for time and info!
best regards,
Steve
Hi Steve,
V1 = V2 = V3 = V4 = 5V
Make sure that voltage difference between them is under 100mV.
For example V2 can be 5,050V and V4 = 5,140V, but not 5,200V or 4,900V.
V1 - power laser and Vref section
V2 - power HF analog signal processor LA9242
V3 - power clock section
V4 - power digital signal processing section LC78601
Miniregs can be used in V2,V3 and V4 positions. For V1 you need a more current capable regulator, like LT1086-5. Please note that minireg in V2 position do not make much difference, at least in my system...
If you look for madness resolution, than in V3 position use a Salas D reflector.
For V1, you may use Salas as well. Again resolution is enhanced. This tighten bass even more and you hear everything. Some people may say is too much ... ;-)
If you intend to bring Shiga MII to very high-end top killer, than a Dexa Neutron and Duelund Silver Cast - for C8 -are a must.
Regards,
Tibi
V1 = V2 = V3 = V4 = 5V
Make sure that voltage difference between them is under 100mV.
For example V2 can be 5,050V and V4 = 5,140V, but not 5,200V or 4,900V.
V1 - power laser and Vref section
V2 - power HF analog signal processor LA9242
V3 - power clock section
V4 - power digital signal processing section LC78601
Miniregs can be used in V2,V3 and V4 positions. For V1 you need a more current capable regulator, like LT1086-5. Please note that minireg in V2 position do not make much difference, at least in my system...
If you look for madness resolution, than in V3 position use a Salas D reflector.
For V1, you may use Salas as well. Again resolution is enhanced. This tighten bass even more and you hear everything. Some people may say is too much ... ;-)
If you intend to bring Shiga MII to very high-end top killer, than a Dexa Neutron and Duelund Silver Cast - for C8 -are a must.
Regards,
Tibi
Last edited by a moderator:
Hi Steve,
V1 = V2 = V3 = V4 = 5V
Make sure that voltage difference between them is under 100mV.
For example V2 can be 5,050V and V4 = 5,140V, but not 5,200V or 4,900V.
V1 - power laser and Vref section
V2 - power HF analog signal processor LA9242
V3 - power clock section
V4 - power digital signal processing section LC78601
Miniregs can be used in V2,V3 and V4 positions. For V1 you need a more current capable regulator, like LT1086-5. Please note that minireg in V2 position do not make much difference, at least in my system...
If you look for madness resolution, than in V3 position use a Salas D reflector.
For V1, you may use Salas as well. Again resolution is enhanced. This tighten bass even more, extend instruments decay, add more harmonics and you hear everything. Some people may say is too much ... ;-)
If you intend to bring Shiga MII to very high-end top killer, than a Dexa Neutron and Duelund Silver Cast - for C8 -are a must.
Regards,
Tibi
V1 = V2 = V3 = V4 = 5V
Make sure that voltage difference between them is under 100mV.
For example V2 can be 5,050V and V4 = 5,140V, but not 5,200V or 4,900V.
V1 - power laser and Vref section
V2 - power HF analog signal processor LA9242
V3 - power clock section
V4 - power digital signal processing section LC78601
Miniregs can be used in V2,V3 and V4 positions. For V1 you need a more current capable regulator, like LT1086-5. Please note that minireg in V2 position do not make much difference, at least in my system...
If you look for madness resolution, than in V3 position use a Salas D reflector.
For V1, you may use Salas as well. Again resolution is enhanced. This tighten bass even more, extend instruments decay, add more harmonics and you hear everything. Some people may say is too much ... ;-)
If you intend to bring Shiga MII to very high-end top killer, than a Dexa Neutron and Duelund Silver Cast - for C8 -are a must.
Regards,
Tibi
Thanks Karel
As with all these things ... when you improve one part of your signal path it just highlights a weakness elsewhere !!
One day I may treat myself to the Dueland Cast in C8 to go with it.Clayton
I'm not sure that I have understand what you mean. However, I recommend you to use a separate trafo for each Salas, or at least use a trafo with with separate secondary winding's.
Use a single point for GND, for all Salas regs, at the main board power input.
If use a metal enclosure, ground the enclosure from the output S/PDif.
Regards,
Tibi
SPF 101 16p old version for sale
To all Shigaclone buiders,
I have for sale 1 SPF 101 16p old version, new and unused.
If you are intersted mail me: poublon@home.nl
Regards,
Robert
To all Shigaclone buiders,
I have for sale 1 SPF 101 16p old version, new and unused.
If you are intersted mail me: poublon@home.nl
Regards,
Robert
Hi Tibi,
I am trying to find information about the 2.5V regulator ADP151-2.5, it is listed with option components if used but I can't find anything regarding it's use. Can you fill me in please or point me in the right direction. Regarding my inquiry about salas d reflector use, my question was regarding 5V out. Can I input at V3 pads on shiga pcb ?Thanks!
best regards,
Steve
I am trying to find information about the 2.5V regulator ADP151-2.5, it is listed with option components if used but I can't find anything regarding it's use. Can you fill me in please or point me in the right direction. Regarding my inquiry about salas d reflector use, my question was regarding 5V out. Can I input at V3 pads on shiga pcb ?Thanks!
best regards,
Steve
Hi Steve,
ADP151-2.5 is there to provide a very stable Vref=2,5V for laser PIN detector. In case you want to implement this, you need to add R65=1K, C68 and C69. C68 and C69 must be at least 1uF. At this value any MLCC is highly piezoelectric, please mount them vertically to minimize this effect, or use a tantalum on C68.
Salas D reflector can be used on any V1=V2=V3=V4=5V. Single condition is to tune them to output under 100mV difference voltage. You may want to load Salas with a 1K resistor.
Regards,
Tibi
ADP151-2.5 is there to provide a very stable Vref=2,5V for laser PIN detector. In case you want to implement this, you need to add R65=1K, C68 and C69. C68 and C69 must be at least 1uF. At this value any MLCC is highly piezoelectric, please mount them vertically to minimize this effect, or use a tantalum on C68.
Salas D reflector can be used on any V1=V2=V3=V4=5V. Single condition is to tune them to output under 100mV difference voltage. You may want to load Salas with a 1K resistor.
Regards,
Tibi