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-   -   SMPS 3000 with a UCD2k (http://www.diyaudio.com/forums/class-d/183489-smps-3000-ucd2k.html)

dallas 19th February 2011 02:58 PM

SMPS 3000 with a UCD2k
 
My brother Jim has been assembling quite a few Hypex based amplifiers for systems our small company sells and installs. Been really successful! We had been waiting for the new SMPS 3000 for almost a year. It seemed to make sense combined with a UCD2k in a monoblock configuration. Unfortunately the cable normally supplied with SMPS power supplies from Hypex is not included as yet.It seems since this is the first batch of 3000s the cables were not ready. They did send the connectors to make our own with however.The problem is trying to make sure the connections are proper? They do have published data on the website which gives some explanation,but this is Jim's question.

"The paragraph below is mysteriously missing from their published data.
I guess it seems pretty clear that the terminal in the supply designated vdr- should be jumpered to the amp neg supply rail?"


Driver Voltage Output Characteristics
The SMPS3k provides a regulated +15V supply voltage which is used to power the driver circuit of a
UcD700 or UcD2k series amplifier. These amplifiers need the 15V supply voltage referred to its
negative supply rail (Vee). In order to achieve this, the “Negative Bootstrap Driver Voltage” (VdrN)
must be connected to its negative supply rail (Vee) at the amplifier side. The “Positive Bootstrap
Driver Voltage” (VdrP) then must be connected to the UcD700/UcD2k series Vdr supply input.

Anybody with any input on this? Trying not to start a fire!
Thanks
Dallas

dallas 23rd April 2011 01:13 PM

Not sure what the problem was,but Hypex sent us new Ucd2ks and SMPS3000s and they fired right up! Less than 15 pounds per monoblock. Really great control of the four 21" Exodus woofers in our installation. Subjectively better sounding than the 2 UCD700HDs used with the same woofers previously.

luka 26th April 2011 06:11 AM

cool! hey post some pictures, that should be one sweet amp

nlRenderman 13th February 2013 12:45 PM

Pics or it didn't Happen! :cuss:

dallas 15th February 2013 08:48 PM

Sorry the amplifier is installed in Florida and we are in Minnesota. Next trip down I will get a picture or 2 and post them.

nlRenderman 15th February 2013 08:54 PM

That would be great! I would love to see some of your other amplifiers as well. I am in the market for a similar amplifier. Do you have a website where i can see your products?

dallas 15th February 2013 09:15 PM

1 Attachment(s)
Nick found a picture of the 2k Hypex amp as discussed. More or less 2 monoblocks in one chassis.
Combined with the 21" subwoofers it produced one of the rare occurrences where my hair moved during a DEEP bass passage. Fun!

nlRenderman 16th February 2013 06:25 AM

That's great you managed to find a picture! Very clean work. Except for the ground connection at the top but, i'm guessing that was temporary :) I love the use of the heatsink, great fit and positioning.

This looks like a rack mounted chassis, is the amplifier used for PA purposes?

ViennaTom 16th February 2013 10:02 AM

For heavy duty PA use built into a rack the amp lacks a fan.

dallas 16th February 2013 12:56 PM

Nick was in the final stages of testing when this picture was taken. He cleaned up the ground etc. for the delivered product. It is installed in a high end home theater in Florida. Each 2k module is driving two 21"(533mm) subwoofers. Not super heavy duty use, so we did not use a fan. Very deep well controlled bass is the result! The theater also has 7 custom Line array speakers as well. Each speaker is driven(bi-amplified) by a custom built amp with two Hypex UCD400HGs and a Marchand electronic crossover built in. There are 16 Hypex modules in this theater!


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