| The Saint |
Here is my latest amplifier module hot off the press!
The NXP180 Dual Die Lateral Amplifier Module.
It measures only 50mm x 50mm
Almost all of the components are SMD
It has very low Noise and Distortion as shown in the THD+N and FFT Graphs below.
The THD+N is flat from 5hz-20khz @ 0.006%
It is capable of power levels as high as 300 watts into 4 Ohms
and >200 watts into 8 Ohms.
All these measurements were done on a ATS-2 AP
Prototype module shown below. |
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| The Saint |
| OK here is the THD+N graph |
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| The Saint |
| And here is the FFT Graph from the ATS-2 AP |
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| tinitus |
| Looks good, should make a very nice 60watt amp with low impedant drive, but what will they cost :) |
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| The Saint |
Hi tinitus
It will sell for around 55 Euro ($89.00AUD)plus postage and handling.
and will be fully assembled and tested.
I am expecting to have them released sometime in march 2008.
I hope this helps :) |
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| tinitus |
WOW! You might sell tons of those ;) got an itche to make active speakers :D
No bias adjustnent, or is that a tiny little smd pot i see ?
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| pinkmouse |
Hi Antony
What are we looking at for min/max voltage rails? I might well have a use for half a dozen of those. ;) |
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| The Saint |
Hi Tinitus
Yes I hope so, They sound most excellent as well.
because of their small size and performance they are well suited to 5-7 channel amplifiers.
There are plans also to release a high powered SMPS based on a
new SMPS IC which uses a new type of switching technology that removes any remaining dissapation found in the output stage when using a conventional smps IC such as the SG3525 IC.
200 watts can be produced without any heatsinking at all and 400 watts with only a metal plate as a heatsink.
Higher powers at done using one of our own ICs which is based on the same technology.
The idea would be for DIY's to make a very small high quality multi channel amplifier using these modules and one of these smps at a very cheap price, which at the end of the day is at the heart of DIY audio. :D |
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| The Saint |
Hi Pinkmouse
The min voltage is +-20v and the max is +-70v
I hope this helps...:) |
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| The Saint |
Sorry Tinitus I missed your other question.
Yes there is a small SMD trimpot for bias adjustment...:) |
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| DonoMan |
| This interests me. What's the average effiency, and how much power does it typically draw at idle? Also, I'm very interested in your SMPS if it's priced as well as this module seems to be. |
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| The Saint |
Hi DonoMan
The efficency is the same as any other Class-B amplifier around 60%.
Idle power is around 8 watts with a +-70 volt rail. |
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| norazmi |
| When this amp will be release? |
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| tcpip |
| Sorry but I'm completely confused. Why are all of you talking about SMPS (Switched Mode Power Supply, I presume) in the same breath as a linear analog amplifier circuit? And what ICs are you all referring to? I thought this amp has a conventional discrete OPS made of a pair of L-MOSFETs? :( |
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| The Saint |
Hi tcpip
The original project was to include a SMPS.
So that is why it was mentioned.
It was to use the FSFR2100 half-bridge resonant power switch from Fairchild.
This particular amplifier will not be released now in the advertised
form as the Dual Die mosfets that is uses are no longer available to me.
I have now redesigned the NXP180 to use 2SK1530 and 2SJ201
MOSFETs and it has been renamed the NXV200
More details on this change will be available on my web site by early next week. |
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| peranders |
| quote: | Originally posted by The Saint
The NXP180 Dual Die Lateral Amplifier Module.
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Nice design no doubt but are you aware of that NXP is a semiconductor company?
http://www.nxp.com |
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| The Saint |
Hi Peranders
I wasn't aware actually :)
But it doesn't matter now as it is now the NXV200
With 2SK1530 and 2SJ201 Mosfets
I think Honda makes a NX150 motorcycle as well.
Shame about that one...:o
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| peranders |
Tips: www.acronymfinder.com if you wonder if some letter combination might be unsuitable of some reason.
What does NXP stand for?
Next Experience (formerly Philips Semiconductors)
no abbreviation matches for NXV :no: :up: |
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| The Saint |
Ha Ha Ha.....
Thanks Peranders, I will be sure to check it out next time.
The NX series was originally stand for "Next Generation"
Because the AV series of amplifiers I did was the First Generation
Then came the NX series. Most of these were N-channel designs
with exception to the NX150 and a version of the NX400 with was called the NX400NP because that version had a N & P mosfets in the output stage.
and so came the NXP which really wasn't an acronym.
So much as it stood for next generation with an N&P output stage.
So NXV stands for Next Generation with VFET output stage
I hope that makes sense.... :) |
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| peranders |
| I like to have "Q" in my names :nod: |
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| The Saint |
Hi All
The New nxV200 Module will be released mid next week around the 24th April.
The module will sell for $198.00 Australian dollars each or 116.00 Euro each
However if 2 x modules are purchased they will cost $189.00 each or 111.00 Euro each
If 4 x modules are purchased you get them for $179.00 each or
105.00 Euro each
Free Postage and handling will be given as an introductory offer
for the first week of the release date.
The power output of these modules is as follows.
110 watts RMS continuous sine wave rated into 8 Ohms
180 watts RMS continuous sine wave rated into 4 Ohms
With a +-50 volt DC Rail
The transformer requirements are as follows.
Single channel 300VA with 35vac + 35vac secondary windings
Dual channel 625VA with 35vac + 35vac secondary windings |
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| ttan98 |
The Saint,
for that price, how does it compare with say a dual chipamp of LM3886 or a single LM4780 which gives similar power but much cheaper.
I would expect different sound reproduction between the two, how different, I don't know. If you know can you tell us.
cheers. |
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| The Saint |
Hi ttan98
That's a very good question.
All I can say is that the sound quality from these modules is very high end.
The PCB that its made on is very high quality 3 ounce copper
with Gold emersion plating and manufactured in the USA.
Not some cheap Chinese PCB that a lot of kits are supplied with
It's a premium product.
I don't think I had ever released a module yet that did not compare well, if not exceed the sound quailty of anything that is out there.
Also these modules are fully assembled and tested, not a unassembled kit.
:) |
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| ttan98 |
| quote: | Originally posted by The Saint
Hi ttan98
The PCB that its made on is very high quality 3 ounce copper
with Gold emersion plating and manufactured in the USA.
:) |
Chipamp is so simple you connect them(components) by point to point wiring this way gives the connectivity of the chipamp the same performance if not better than the PCB you are using.
I believe the key to the perfomance of your amp is in the circuitry(design and layout) and possibly the SMD you are using.
I don't think it will lose out to chipamp in terms of sound quality, I suspect/guess it is better how much better it is hard to tell again without a direct one-to-one comparison.
I hope you the best, there are lot of competitors out there. cheers. |
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| pinkmouse |
| Oh well. Price has doubled, and it no longer handles 60V rails. I'll pass. Not your fault, I know, but, annoying none the less. |
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| The Saint |
Hi Pinkmouse
A bummer I know:bawling:
I am looking at getting these modules produced in the USA
assemble house which should help to drop the price.
The modules are 60 VOLT tolerent however 8 ohm loads would be mandatory.
At this time I am handle assembling them.
What would be a price you would be happy to pay for these modules?
Let me know and I will do a DIYaudio introductory offer for
members only. |
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| The Saint |
Hi Everyone
I have now released the nxV200 amplifier module
They are available through my web site.
I have an introductory special on them for $149.00AUD if you are in the EU they are only €89.00 Euro each.
If you are DIYaudio Member you will get a further discount.
The more you purchase the cheaper they get.
Please email me for discount details..... :) |
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| The Saint |
| Here is an other photo of the module. |
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| The Saint |
And yet another :)
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