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2x150W Amp module for sale

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b_force

b_force

Member
Joined 2004
oneworldconcepts.com/
Erica.C said:
Hi, b_force
Yes, the output MOSFET + rectifier diode was screwed on the heatsink with the insulated ceramic plate, which was well dissipated by this tooled Heatsink, I'm glad you like it :D
To explain the THD+N data, I test the 100/1k/6.65K frequency with output power from 0 to rated output @4/8ohm, and each frequency with a different color to be marked in the test data.
Thanks,
Eric
Click to expand...
Well I was saying that I would like it if the fets were mounted on a different way.
Currently I don't like it as is, otherwise I would have some people interested.

Is this thing UL/CE certified btw?
 
E

Erica.C

Member
Joined 2005
b_force said:
Well I was saying that I would like it if the fets were mounted on a different way.
Currently I don't like it as is, otherwise I would have some people interested.

Is this thing UL/CE certified btw?
Click to expand...
Hey Bro, don't take it too seriously.
I know what you mean. Every design has its application area, like you said, mounting the MOSFET on the bottom might be suitable for an active speaker, we've seen a lot of these designs from Pascal and powersoft... (our next model is this similar design).
However, it also has flaws like how to bend the MOSFETs, how to design the jig to get the MOSFETs through wave soldering, and the right mounting holes to push these MOSFETs onto the substrate perfectly, even the original PCB at least 2.0mm height, right? All of which add to the cost. .....
Look at the design, it should have the UL/CE, because it used on some brand products :D
Anyway, I appreciate your comments,

Thanks, Eric
 
von Ah

von Ah

Member
Joined 2008
Paid Member
Goodies from Nanhai arrived! Testing to commence. Thanks, Eric! (y)
 

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von Ah

von Ah

Member
Joined 2008
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Last edited:
E

Erica.C

Member
Joined 2005
Thanks for Marc's suggestion. I upload the cut sheet of this amplifier module for reference.
And the input impedance is unbalanced = 3.65K and balanced = 7.3k.

And, I guess more friends will receive the module these days, I hope you can share your wonderful project in the forum.
Also, please be careful with your handwork, it has high voltage inside.

Thanks,Eric
 

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E

Erica.C

Member
Joined 2005
Hi, All
Samples sold out, we're preparing the second build and announce it later here.
And, we'll update the input buffer board with RCA combined plus the Volume control.
In the future, we're thinking to add the Bluetooth module, and if you have any good suggestions, please comment here.
Appreciated your input ~~~

Thanks,
Eric
 
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M

mga2009

Member
Joined 2015
Erica.C said:
Hi, All
Samples sold out, we're preparing the second build and announce it later here.
And, we'll update the input buffer board with RCA combined plus the Volume control.
In the future, we're thinking to add the Bluetooth module, and if you have any good suggestions, please comment here.
Appreciated your input ~~~

Thanks,
Eric
Click to expand...
Excellent!

You should develop an AMP with integrated DSP (at least basic HP,LP and some EQ) for active speakers! There is a shortage of good (maybe not SOTA) plate amps for active sepakers
 
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M

mga2009

Member
Joined 2015
ADAU1701 is very versatile, but it's Analog to Digital Converter ADC is very bad. Maybe an ADAU1701 with another ADC like the PCM1802.

THD+N (dB)
PCM1808
-93​
ADAU1701
-83​
AD1938
-94​
Cirrus Logic CS5343
-92​
AKM 5720
-94​
PCM1802
-96​

Anyways, looking forward to your future batch of amps, and hope you can develop a good amp with integrated DSP.

Cheers.
 
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W

wirewiggler

Member
Joined 2005
Eric,
I just received my unit, everything good. I ordered a suitable case and speaker connectors, what do you recommend for power inlet module ? Of course it will be fused what amperage do you recommend and is filtering recommended ? I would be interested in the buffer board with rca inputs, do you have any idea how soon you will be offering it and how much ?

thanks
Bill
 
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