Well..
i've tried and enjoed a couple of sda 400 (old model i suppose) driving directly my tweeters...So will be happy to take a closer look to these new ones..So please add me for one kit.
(Just in case PM sent)
As always..sorry for my english 😱😱😱😱
i've tried and enjoed a couple of sda 400 (old model i suppose) driving directly my tweeters...So will be happy to take a closer look to these new ones..So please add me for one kit.
(Just in case PM sent)
As always..sorry for my english 😱😱😱😱
Hello, Do you want to make a collection of SDA maybe ...😀
Very small adjustments on SDA.
Some important, the new release of the DPS-400 for the class AB. now offers better transient response also.
well, we have 19 kit then.
Regards
SDA-400 Dual Mono AL Frame
I did not find on the market a dual mono with these performances in a 1Usize, with width 265mm (instead of 19. ") One more reason to be fascinating. 🙂
Even at full price (about 480 € vat included) remains in my opinion, a beautiful toy for music amateur, well compared to along with class AB, away from the € 1600 or € 3000.
--
I remind that these products are tested at least 5 years.
They are also used as a multi module for hotels and shopping complexes. (There is a small module (2x4cm), which allows use with the output line transformer 100V, currently running, even among some civil airports.
--------------
last, I am sure that this offer is not repeatable.
---------------------
Two in list at the moment:
18 Kit availlable.
Regards
At short, 4 CH
I did not find on the market a dual mono with these performances in a 1Usize, with width 265mm (instead of 19. ") One more reason to be fascinating. 🙂
Even at full price (about 480 € vat included) remains in my opinion, a beautiful toy for music amateur, well compared to along with class AB, away from the € 1600 or € 3000.
--
I remind that these products are tested at least 5 years.
They are also used as a multi module for hotels and shopping complexes. (There is a small module (2x4cm), which allows use with the output line transformer 100V, currently running, even among some civil airports.
--------------
last, I am sure that this offer is not repeatable.
---------------------
Two in list at the moment:
18 Kit availlable.
Regards
At short, 4 CH
Attachments
Good morning,
Fherudi & Pinnocchio (promotion test shipped MDA-400)
thanks
I have no news: PinkMouse; CaffèNoir; MJ777
Please confirm if you have received.
Regards
Fherudi & Pinnocchio (promotion test shipped MDA-400)
thanks
I have no news: PinkMouse; CaffèNoir; MJ777
Please confirm if you have received.
Regards
SDA-400-Kit-2
Hi,
The Kit-2 is composed of the components in photo (includes 30cm 10Pin flat cable)
Amps well tested and working at 500w rms (4R). with absolutely no problems.
The two sda-400 are electrically separated, each is complete with regulators LM317/337
The price € 110 + shipping (fixed at 22 €)
These kits (and others that I will put) can be shipped in 1 day because ready
Just a curiosity (the pcb input are high-cost (twice) because they have the solder-based resin and percentage of silver on layers.
Regards
Hi,
The Kit-2 is composed of the components in photo (includes 30cm 10Pin flat cable)
Amps well tested and working at 500w rms (4R). with absolutely no problems.
The two sda-400 are electrically separated, each is complete with regulators LM317/337
The price € 110 + shipping (fixed at 22 €)
These kits (and others that I will put) can be shipped in 1 day because ready
Just a curiosity (the pcb input are high-cost (twice) because they have the solder-based resin and percentage of silver on layers.
Regards
Attachments
Last edited:
Thanks AP2!
BTW, If I wanted to do a 6 channel amp in the near future, could I use the components you sent me and add some SDA-400 to the SMPS in my current kit? If yes, how many modules can I supply with a single SMPS (I believe I had read 3?) and what would be the max output into 4R per modules?
Thanks
Do
BTW, If I wanted to do a 6 channel amp in the near future, could I use the components you sent me and add some SDA-400 to the SMPS in my current kit? If yes, how many modules can I supply with a single SMPS (I believe I had read 3?) and what would be the max output into 4R per modules?
Thanks
Do
Hi,
In the original, an MDA-400 can power a SDA-400 and ensure 2x240w at 4R perfectly (it was developed for this) in fact, the MDA-400 has the power supply bus for one sda-400. of course, each module has its own on-board regulators lm317/337. Now with the new release of DPS-400 (which is the section smps) and pbtu-3, we have improved transient response (in terms of current). then no problem.
I suggest also the possibility (see ch 4) to leave an MDA for the sub, and use the 4 channel version consists of: 2xsda (double) +2 xDPS400. no heat, no noise, perfectly in range of high fidelity. I hope that some see well these modules. are complete of all protection,relays with gold-plated contacts for output also.
In the original, an MDA-400 can power a SDA-400 and ensure 2x240w at 4R perfectly (it was developed for this) in fact, the MDA-400 has the power supply bus for one sda-400. of course, each module has its own on-board regulators lm317/337. Now with the new release of DPS-400 (which is the section smps) and pbtu-3, we have improved transient response (in terms of current). then no problem.
I suggest also the possibility (see ch 4) to leave an MDA for the sub, and use the 4 channel version consists of: 2xsda (double) +2 xDPS400. no heat, no noise, perfectly in range of high fidelity. I hope that some see well these modules. are complete of all protection,relays with gold-plated contacts for output also.
So what you're telling me is that MDA-400 that I will receive can handle nativelly a SDA-400 but you recommand using the MDA-400 for sub and the 4 ch version for the rest?
My sub is already powered by a 2000W Class D amp so I would use the channels for center, rear (L+R) and rear surround (L+R) or different configuration possible like center, front (L+R) and rear surround (L+R).
Can you PM me the price for the 4 ch kit?
Thanks
Do
My sub is already powered by a 2000W Class D amp so I would use the channels for center, rear (L+R) and rear surround (L+R) or different configuration possible like center, front (L+R) and rear surround (L+R).
Can you PM me the price for the 4 ch kit?
Thanks
Do
Hi,
I now know the type of system (I thought of as multi-way stereo).
You can use 2xMDA-400 as front and / or 4xSDA-400+2xDPS-400.
Just for this configuration, I have prepared the kit-3. which consists in 4xSDA-400 in vertical (height 60mm) and two DPS-400 side by side. this assembly is complete with aluminum parts for mounted vertically and needs 2U case.
Or 2xKIT-2 + 2xDPS-400,depends on how you choose to Mount.
All are plug & play,complete of the input board (2CH each). this greatly facilitates mounting clean, no noise problems.
I will show this kit in the next few days.
Note:
If not differently specified, at this price around -50%, there are 10pcs 4CH (complete with smps) and 20pcs as stereo.
The problem is not the quantity available, but the price may be unfair to the market. is different, it is limited to a promotion.
Regards
I now know the type of system (I thought of as multi-way stereo).
You can use 2xMDA-400 as front and / or 4xSDA-400+2xDPS-400.
Just for this configuration, I have prepared the kit-3. which consists in 4xSDA-400 in vertical (height 60mm) and two DPS-400 side by side. this assembly is complete with aluminum parts for mounted vertically and needs 2U case.
Or 2xKIT-2 + 2xDPS-400,depends on how you choose to Mount.
All are plug & play,complete of the input board (2CH each). this greatly facilitates mounting clean, no noise problems.
I will show this kit in the next few days.
Note:
If not differently specified, at this price around -50%, there are 10pcs 4CH (complete with smps) and 20pcs as stereo.
The problem is not the quantity available, but the price may be unfair to the market. is different, it is limited to a promotion.
Regards
Last edited:
Put me on the reserve list for a 4 ch kit and I will see how I want to mount it and price when you post it.
Thanks
Do
Thanks
Do
New DPS-500/DA on MosfetAmp-Test
Hi,
For my curiosity, I tried the new fast DPS500/DA at + /-39.5V. as I expected, even with the 4R mosfet amp,without Capacitors bank, looks like a battery. no HF noise, no voltage drop. Obviously listening changes everything, do not you agree? 😀
Today later, show the SDA 400-4CH complete with smps.
Regards
Hi,
For my curiosity, I tried the new fast DPS500/DA at + /-39.5V. as I expected, even with the 4R mosfet amp,without Capacitors bank, looks like a battery. no HF noise, no voltage drop. Obviously listening changes everything, do not you agree? 😀
Today later, show the SDA 400-4CH complete with smps.
Regards
Attachments
I will take one of those SDA-400-4CH KIT3 (120Vac version) after I receive the other kit. Please reserve one for me.
I also would like to know the price for this DPS-500/DA since I want to compare it to the Hypex SMPS400A180 for my VSSA.
Thanks
Do
I also would like to know the price for this DPS-500/DA since I want to compare it to the Hypex SMPS400A180 for my VSSA.
Thanks
Do
Hi,Thank you for appreciating the dps-500/DA.
I saw your work, very well done, the project is very interesting. you have a couple ready to try out some of my amps? I see well DPA-400/F1 and the new concept of class A,called "EVA", in your loudspeaker.we wait the release.
The latter will be powered by a new smps with processors in feedback path, with independent transient response per side(two Power-Unit). The release is late but .. arrives. Called "Nesus Vxx" 1Kw & 1.5 Kw per rail.
--------------------------
Unfortunately, there is still little clarity about the importance of psu in audio. this is what I see today. If someone wants an explanation with clear diagrams, are available.
this does not need to push my smps, but to avoid the crap that some people continue to say, for their own convenience, such as "but my amp, cleans the smps" said an engineer is fantastic ... haha!
Hi Do,
I hope you know that MDA-400 running only at 230Vac..
For module that use DPS-400 (smps), you can choose 110 or 230Vac (not both). the reason that you know well, using, in the case 110Vac, native filter cell in high voltage,and consequently a specific transformer.
I mean no voltage doubler.
-------------------------
The price of DPS-500/DA ( for class AB amps) if purchased in this thread , I can offer € 105 one. +22 € for shipping.
Power DC + / - 39V to approximately 43V , ADJ
Aux + / - 20V 2x250ma unreg , L- C filtered .
The price is really special , for the parts it uses.
Regards
Hi Tinitus,
This version have 500w output (not continuos as for lamps).
at 39V is very quiet for two VSSA amps. (at 230Vac).
If you see well the photo with burst, the duration di SIN = 33mS with no drop voltage (and no extra caps at output) maybe is hard to accept, it is not possible even with 150.000uF . I did a lot of testing in this direction. of course the output is completely clean.
The amplifier is heard in a very different way , also said by those who have the DPS -500 / S.
However , I have to limit the amount available in the thread , I fail at this price !
Sorry AP2,
I'm not following you here... What you sent me already is 2x MDA-400, correct? Are you saying those are only 230Vac? If yes, how can I use them in Canada?
Is the 4ch kit3 only 230Vac or it can be made for 120Vac? I know that in some models you don't use a voltage doubler so you use a different transformer instead but I just want to clarify things with you. I could potentially bring a 230Vac line to test but it is uncommon and only large appliance like oven and dryer uses them in North America.
There's many models
DPS = Digital Power Supply
MDA = ? Digital Amplifier
SDA = ? Digital Amplifier
Sorry, I'm just confused
Thanks
Do
Well..I think part of confusion is due to the thread "MDA-400 Promotion test" that has been cut, it certainly contained a lot of things.
The MDA-400 only running at 230Vac.
DPS-400 (smps) can order at 110 or 230Vac (not both)
DPS-500/DA running at 110/230
SDA is only amplifier, then no problem. also, these kits have the setup (some components in the SDA-400) for an output power of around 500w rms.
Now, as we solve your 2xMDA-400?
One MDA-400, is actually composed of a smps dps-400 and an SDA-400 in single pcb.
then you can restore with 1 dps-400 (at 110V) + 1 SDA-400.
I'm sorry, right now I came to doubt. how to solve?
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