SDA-400 Professional multi-way

[danny_66]

I see well DPA-400/F1 and the new concept of class A,called "EVA", in your loudspeaker.we wait the release.

Hi AP2,
I'm looking forward to the new "EVA".
Any idea when it will be available ?

 

[AP2]

Hi AP2,
I'm looking forward to the new "EVA".
Any idea when it will be available ?

I hope by the end of November, also because it is linked to the new smps "Nesus Vxx" which is already late. for sure before Christmas will be available...together with the discussions that will be created .. hehe!

 

[AP2]

Info for MDA-400 Promotion Test

Hi,
MDA-400 sended to:

Weskoki (2x)
Nikola (2x)
Tinitus (1x)
PinkMouse (1x)
marginwalker (1x)
CafèNoir (1x)
MJ777 (1x)
Fherudi (1x)
Baga (1x)
----------------------
Waited Telephon number from HiroPro.

No notice from : MJ777,CaffèNoir,PinkMouse. received??

 

[pinnocchio]

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?

Hi Roberto,

Let's take this offline on a PM and discuss options.

Thanks
Do

 

[AP2]

I decided to put a pdf containing the exact description of these models, and their prices, because it is already chaos in this way.

 

[tinitus]

any reasons for choosing DPS-600 or DPS-500

hi,
I am that some expect this smps, then use this thread for info.

This version replaces the DPS-600 (already used the same circuit linear regulator with fast response of the DPS-500)
alignment for the production, it is agreed to use at this point, the same pcb. performance remains in the origin of the DPS-600, slightly better for higher filtration capacity. Power-Unit remained unchanged.

To offer a very competitive price and oriented class AB, were removed the following functions:
No voltage output for Class D driver.
No AL bottom plate.
Available only from + /-36V to 45V (ADJ trim on board +5 V) and AUX + /-20V LC filtered unreg. 2x250 mA.
Power output 500w (12A;16 Amp repetitive peaks
Remote control yes.
Notes: Aux may be required up to + /-90V.
Special price 120€
many already know, the performance of this smps for audio.

regards

...
-------------------------
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

 

[AP2]

Hi, Both are right.
The first refers to the official release of the DPS-500/DA, which replaces the DPS-600, for the reasons described. maintains the same power-unit DPS-600 but enjoys better filtering the output. is oriented to class AB at an affordable price (Shop € 120 + VAT + shipping). AudioPower guarantees parts and service of the DPS-600 even if it is out of production.
the second post, refers to dps-500/DA (10 or 20 pcs total) promotion as a fixed price € 105 +22 € shipping. seems clear to me.. if I am not wrong

As amps and dps-400 i offer in this thread at real -50% discount.

 

[tinitus]

.... seems clear to me.. if I am not wrong

hmm, headline clearly said ... New DPS-600


maybe should have said ... New DPS-500

 

[AP2]

hmm, headline clearly said ... New DPS-600


maybe should have said ... New DPS-500

Ah! yes..my lapsus..now is clare thank

 

[pinnocchio]

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 Roberto,

I'm thinking testing those modules in my AMB B24 amplifier... I currently use a 500$ Plitron Shielded/Encapsulated Audio Transformer with and Nichicon SuperThrough caps for smoothing and dual 35A bridges. Do you think adding two DPS-500/DA instead would give more dynamics and better resolution or I'm wasting money?

Here's the schematic

Thanks
Do

 

[AP2]

Hi,
No doubt it is a great psu, well shielded also.
In the case of AMB B24, you can not use the dps-500/DA. (This version accessible as price, has been designed to satisfy the needs of a fast amplifier, in the range of low average power, just use the compactness of a smps but with the speed and accuracy of a linear regulator).
in your case you can use the DPS-500/S-64 or DPS-500/SD (to save € 50 in the pair). The main difference is in the Power-Unit (clearly visible). I consider about 450w at 3R in your amp. right with good passive loudspeaker.
The difference is huge, dynamic is obvious, therefore changing the sounds of percussion music, and all the tools with fast attack. Another obvious consequence feeling, significantly changes spl product.
Look at some of my measurements "DPA-400 sound pressure." with DPS-500 Vs. linear psu.
Measure: http://www.diyaudio.com/forums/atta...essure-improvements-400-power-integration.png

 

[pinnocchio]

Hi,
No doubt it is a great psu, well shielded also.
In the case of AMB B24, you can not use the dps-500/DA. (This version accessible as price, has been designed to satisfy the needs of a fast amplifier, in the range of low average power, just use the compactness of a smps but with the speed and accuracy of a linear regulator).
in your case you can use the DPS-500/S-64 or DPS-500/SD (to save € 50 in the pair). The main difference is in the Power-Unit (clearly visible). I consider about 450w at 3R in your amp. right with good passive loudspeaker.
The difference is huge, dynamic is obvious, therefore changing the sounds of percussion music, and all the tools with fast attack. Another obvious consequence feeling, significantly changes spl product.
Look at some of my measurements "DPA-400 sound pressure." with DPS-500 Vs. linear psu.
Measure: http://www.diyaudio.com/forums/atta...essure-improvements-400-power-integration.png

So it would be 160 Euros for two DPS-500/S-64?

Do you have one version close to +/-45Vdc rails with 120Vac input?

Thanks
Do

 

[AP2]

So it would be 160 Euros for two DPS-500/S-64?

Do you have one version close to +/-45Vdc rails with 120Vac input?

Thanks
Do

Hi,
The products that I can offer discounted are only those that follow below.​

Kit1: Dual Mono Complete of smps DPS-400 & PBTU-3 (caps-Bank) € 200
kit2: Dual Mono without smps € 110
Kit3: 4CH+2xsmps DPS-400+2PBTU-3 (caps-Bank) € 340​

KIT4: 1xMDA-400+PBTU-3+Mono rear panel complete, (230Vac) €158
DPS-500/DA 500w output (+/-39-43V)-(+/-20V 2x250mA unreg,LC filtered) 120/230Vac €105
Heatsink for DPS-500/DA: (W=80,D=40:H=30)mm,(surface treatment with magnesium powder) ready to assemble €6
-----------------------------
Kit1 to Kit4 includes all in photo.
DPS-500/DA as in photo,pcb blue opaque. (18pz availlable as promotion)
----------------------------
Later I'll put on some measures dps-500/DA, dynamic and Thermal.
comparisons are welcome but please, show measure.
are sufficient only 2: burst 33-66ms @4R and harmonic component at the output with fixed load 30%. it's sufficient for see all. ​

Regards​

 

[AP2]

Hi,
DPS-500/DA with Heatsink.
Show proportion with DPS-400+PBTU-3.
Just for idea.
-----------------------------
I prepared the tools to record 5 parameters for a period of 20min. with music (96Khz-24b), where we can see the behavior of the DPS-500/DA at + /-40V output.
Ch1: Heatsink Temperature (start for ambient)
Ch2: positive rail
Ch3: negative rail
Ch4: Output load on 4R (AB mosfet amplifier)
Ch5: AC-Line (230)
the peaks set at 75% of the maximum load on vp out.
If the temperature rises above 85 °, Also we see the operation of the thermal protection in DPS-500/DA.

I have already made many of these tests, when I developed this smps, but now it's time to share them with you.
--------------------------------------
Missing two important parameters on the datasheet.
1.max continuous output power Vs time.
2.max peak repeatable (as transient)
I also want to show this data.
I will mention the models of the various tools that I will use, partly visible in the next photo.

I accept judgments from comparation, only in the presence of measurements on smps competitors.
The first reason ever that we have invested time and money on these smps in 2010, is serving us for some finished products, without them, can not be achieved.

Good weekend at all.

 

[AP2]

Hello, meanwhile I prepare the instruments for the measures I mentioned above, these are the new data, the ultra-compact DPS-400+PBTU-3.
The rise time is measured on the secondary side of the transformer.
I have no comment to make, you measured at 120Vac an smps,or linear psu with 100.000uF.
output voltage + /-39V at idle. amp = mosfet amp. load = 4R.

regards

 

[AP2]

Hi,
The products that I can offer discounted are only those that follow below.


Kit1: Dual Mono Complete of smps DPS-400 & PBTU-3 (caps-Bank) € 200
kit2: Dual Mono without smps € 110
Kit3: 4CH+2xsmps DPS-400+2PBTU-3 (caps-Bank) € 340


KIT4: 1xMDA-400+PBTU-3+Mono rear panel complete, (230Vac) €158
DPS-500/DA 500w output (+/-39-43V)-(+/-20V 2x250mA unreg,LC filtered) 120/230Vac €105
Heatsink for DPS-500/DA: (W=80,D=40:H=30)mm,(surface treatment with magnesium powder) ready to assemble €6
-----------------------------
Kit1 to Kit4 includes all in photo.
DPS-500/DA as in photo,pcb blue opaque. (18pz availlable as promotion)
----------------------------
Kit5 DPS-400+PBTU-3 (ELNA Caps as Kit) 230Vac, +/-52V 10A,Aux +/-20V Unreg,LC filtered,2x250mA.+15V reg lm317 for driver, PCB black opaque, Version for class D. €65 (20pz availlable).
----------------------------
Kit6 DPS-400+PBTU-3 (ELNA Caps as Kit) 230Vac, +/-42V 10A,Aux +/-20V Unreg,LC filtered,2x250mA.Version for AB Class, PCB Blue opaque.
€68. (20pz availlable).
----------------------------
All Includes connectors,screws,spacers.

Regards​

 

[AP2]

SDA-400 (Power supply connections)

Hi, This is the simple connections for The SDA-400 (Power supply section).
you can use with linear transformer, but honestly, it is difficult to get the same performance, even in relation to the compactness and simplicity offered by the DPS-400.
The SDA-400 in this promotion, are able to work stable at 2R also, with thd around 0,05% at full power.

Regards

P.S. special measure on DPS-500/DA well ready, History data (strip Chart) is a problem to show as single photo. I try to develop in simple "c" a small exe to scrolling the data in graph, just a slider for time asse-x. then you can see all data,with reference to the x-axis. (just duration is 18 Min.)

 

[tinitus]

Roberto, where is the low voltage aux out 'located' ?

 

[AP2]

Roberto, where is the low voltage aux out 'located' ?

In MDA-400 (as you have) is located near the trim on main board,CN4. we have aux unreg in this CN, under fuse "1R".
Or get +/-15V 2x250mA regulated from 10Pin connettor (see input board CN3)
--------------------
In the DPS-400 & SDA-400, are located exactly like the diagram that I showed before.

 

[Berny]

Hi, can the DPS-400+PBTU-3 be modified to give even lower output voltage? Since you already have it in two versions... I`m more looking towards +/-25 to +/- 35V