First One - mosFET amplifier module

[meanman1964]

Me too🙂

 

[Greg Stewart]

Ah... but which sounds better?

That's the question!!!

Greg in Mississippi

 

[BYRTT]

LC very beatiful PCB's.
Reminds me days in navy starboard/port=green/red=right/left or modern tech race INTEL verse AMD.

 

[Esperado]

Ah... but which sounds better?

Well, the red one is the hotter version, the green is the most natural, while the blue version is the most airy and precise.

 

[_henry_]

looks really good

 

[brianco]

looks really good

Not only that but they are also ready.😉

 

[AP2]

Hi,
I'm done now, after 10 hours of immersion in DPS-500 candidates for first one.
I had to consider the pair of 2200uF which the First-One, has on board also.
therefore, the DPS-500 have 1x470uF on the primary side, 2200uF in the secondary side.
I tested with load at 4R continuos Resistive, via amp continuos and burst 4R, fft 4R at 50% of power. All is perfect in range.
that is all. Now I can call UPS.

First-One nice and clean pcb. you're planning a version blue opaque?

Regards

 

[BYRTT]

..........Now I can call UPS..........

Thanks for info and hard work.
Now don't reopen the box anymore 😀 so it's next geographical position will be beside "First One" PCB's at LC's lab.

 

[AP2]

Thanks for info and hard work.
Now don't reopen the box anymore 😀 so it's next geographical position will be beside "First One" PCB's at LC's lab.

Ahahah, not reopen.
...for this I asked if it will blue 🙂

 

[Theodosis O.]

.

Reopen it and put a limoncello inside

 

[BYRTT]

Ahahah, not reopen.....

no-no please 🙂...

.....for this I asked if it will blue 🙂

make special DPS-500 white PCB, get a green and a red amp PCB from LC, = 😎 national Italian flag colours inside amp box.

 

[flyboi]

edit : additional 2 more

luca 4
danny_66 2
woofertester 4
rainerco 2
pinnocchio 4
jokari69 2
mksung 2
ZZoran 2
Edgar 2
Eric06 2
kimon 2
maxidcx 2
e-bok 6
bobo le chat 2
metallicus69 2
scoutOne 4
quan 2
Greg Stewart 2
colesey 2
analogsa 4
Brianco 2 + 1(chassis)
Theodosis O. 4
chunek 2
CaféNoir 2 (full kit) + 2 additional modules
Nikitas 2 (full kit)
meanman1964 2
supernet 2+2
jeremysk 2
Dane 2
mikvous 2
PreSapian 2
coolewater 2
edionysus 2 (full kit)
jaggel 2 (full kit)
fredlock 2
HiroPro 2 (full kit)
darbost 2
Turbon 2 (full kit)
r8833 2
androa76 2 (full kit)
JethroTull 2
stonehome 2 (full kit)
commstech 2
we417 2
hcbonfim 2
stormsonic 2 (full kit)
fishball79 4
Catal 4
Overkill Audio 1 full stereo kit with PS and case plus 5 mono boards
touchdown 2
Sebbyp - 4 - with full kit chassis & PSU
a333bt 2
flyboi 4
rellum 2
huibert34 2 kits
tjencks 2
back 2

 

[AP2]

Hi amateurs,
Last measures on samples for LC (after my intervent to customize well for First One)

I think not need comment, Measure very simple. 🙂

Just two word:
Drop voltage under burst/continuos from 4R--8R,with no difference.
Residual HF (F=120Khz) -82dB(300mA) at Output Connector.
--------------
Spikes due to the square wave, not present (zero), these can not be eliminated, when present as "conducted" on the output connector). they occupy the frequency range from MHz to GHz and spread everywhere.

is very long, explain the effects.
These are part of EMI / RFI, even if smps is used for electric motors or lamps, the value of these harmonics, such as "induced" via AC line, do not allow for the approval, including the CE.

You all can not even be interested in this maybe (enough that the amp sounds), but I'm not a DIY, so I have to solve,as well in Unreg DPS-400.

Well, now I go on the sea,just I have at 200mt eheh!.

Nice day at all.

P.S. For red pcb by LC, right for a color resonance, i can assembly the red "ferrari" Power unit. 😉

Roberto

 

[BYRTT]

Hi amateurs..........

Thanks for measuring and good trip to sea remember this and maybe this

(amateur thoughts: aah ..... wonder if measure were taken on package for LC reopened again again or on other samples)

 

[AP2]

Thanks for measuring and good trip to sea remember this and maybe this

(amateur thoughts: aah ..... wonder if measure were taken on package for LC reopened again again or on other samples)

Hi,
See date of day on fft 10/April. measures on samples for LC just before closing the package.
One smps need a lot of measure, I did not want to bore...😀,
Just these simple that LC can confirm for sure.

Amateurs = fans of good music in this case.

 

[BYRTT]

.....Amateurs = fans of good music in this case.

No problem being amateur was just teasing, PRO's are taking care we get good PSU's 😀

 

[supernet]

😀

 

[Lazy Cat]

Hi,
See date of day on fft 10/April. measures on samples for LC just before closing the package.
One smps need a lot of measure, I did not want to bore...😀,
Just these simple that LC can confirm for sure.

Amateurs = fans of good music in this case.

Nice rails response measurements, can not wait to get DPS-500

😀

Yes, these are first two serial production First One modules. Local guys already got them.

World shipments starts on Monday. All be patient to get your offers.

Regards, L.C.

 

[tinitus]

Colours

any bright yellow ? 😛

 

[MASantos]

Lc, when do you expect to have chassis prices and pictures ready? And what are the currently recommended power supplies?