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Class D Switching Power Amplifiers and Power D/A conversion

The New Hypex Fusion Plate amps
The New Hypex Fusion Plate amps
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Old 16th June 2019, 07:15 AM   #1371
YSDR is offline YSDR  Europe
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Quote:
Originally Posted by TimbreAudio View Post

How do the DAC's in the fusions (& dlcp's) stack up against other, I have been looking at the budget end, Schiit Bifrost territory.
According to spec sheets (THD, S/N etc.), which i think is quite accurate for both manufacturer and reviews confirms this, the Hypex stuffs comes out as winner against the Bifrost for example.

Last edited by YSDR; 16th June 2019 at 07:43 AM.
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Old 16th June 2019, 07:53 AM   #1372
bexi is offline bexi  Finland
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Originally Posted by Mafix View Post
Tried the btl (bridged) on the FA502 today. This is my experience so far and Im still evaluating these plateamps.
Mafix
What is your (or anyone else's) experience with the fan on this amp? My experience is that it kicks in after a few hours. Even with no music content. After a minute it turns off and again on after a while.
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Old 23rd June 2019, 10:28 AM   #1373
powerman is offline powerman  South Korea
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Originally Posted by bexi View Post
What is your (or anyone else's) experience with the fan on this amp? My experience is that it kicks in after a few hours. Even with no music content. After a minute it turns off and again on after a while.
The fan kick in when it should. I set three minutes no music shut down.
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Old 23rd June 2019, 11:35 AM   #1374
bonzer is offline bonzer  Denmark
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Hi All
i have no output signal for measurement.


What i have: Hypex Fusion FA 253, new MAC Mini with Parallels, Focusride Scarlett Solo, Dayton EMM-6 with correction file installed.


I run the Speakers half active with passive Filter. So i want to juse the DAC and Amp.


I need to adjust the Tweeter level and i want to control that with the HFD.



Somehow i can`t get any sound out of the Speaker. The mic records the noise. I get on every Channel the same results.


What do i miss out? I did not adjust to anything like a special Gain setting.


I tryed gain on the Scarlett and the Plateamp- nothing.


Can somebuddy help with an advise how to set up this? OH- I`m far away from expert
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Old 23rd June 2019, 12:05 PM   #1375
bonzer is offline bonzer  Denmark
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Hi All


i run my 3-way Speakers half active with passive filter and the Hypex FA 253.


I use all 3 Channels but i realised the Tweeter plays lower lever than the rest. I could measure this with a borrowed Umic and REW and compare it to an old Rotel Amp.

Maybe i made an mistake with the Ohm setup in the HFD.



However i have an new MAC Mini with Parallels, Scarlett Solo, Dayton EMM-6 with correction file and HFD.


But i can`t get any sound out of the Speaker. The mic records a room noise. Equal on all 3 Channels.


I did not do anything an the Gain at HFD. It is 0.

I tried to set the Gain via Scarlett and the Remotecontrol.


What do i missing here? Do i need another driver, app or a different settup in HFD?
Would be thankfull for any help as im not an expert
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Old 23rd June 2019, 01:43 PM   #1376
bonzer is offline bonzer  Denmark
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OK, got my mistake.


It was the setup in Device settings put to RCA
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Old 23rd June 2019, 06:53 PM   #1377
bonzer is offline bonzer  Denmark
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now i leared a bit more and know roughly how to put biquads.


but i still habe no clou how to rise the Tweeter channel level. I need aprox 6db.


I tryed to load via preset 3 to copi into preset 1 with no result. Maybe the Scarlett playing trick on me?


Somebody an Idea?
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Old 25th June 2019, 10:16 PM   #1378
darkmatter is offline darkmatter  United Kingdom
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I am thinking about a high performance 2 way system and wondered about the performance and sound quality of the Hypex FusionAmp FA502 board?

Be interested to read comments on sound quality?
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Old 25th June 2019, 10:26 PM   #1379
mlee is offline mlee  Canada
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Originally Posted by darkmatter View Post
I am thinking about a high performance 2 way system and wondered about the performance and sound quality of the Hypex FusionAmp FA502 board?

Be interested to read comments on sound quality?
I run the FA253 and they sound pretty transparent to me. I used to go direct from DAC to tripath amp. Making the switch to FA253 gave a lot more grip/power in the lower registers. Did not notice a reduction in sound quality due to the ADC/DAC conversion.

With low spl listening they still sound good.

Seemed like a good trade off to simplify my setup yet maintain the flexibility of active 3-way for the LCR while gaining the ability of multichannel. Glad I did it.
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Old 25th June 2019, 10:27 PM   #1380
mlee is offline mlee  Canada
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Originally Posted by bonzer View Post
now i leared a bit more and know roughly how to put biquads.


but i still habe no clou how to rise the Tweeter channel level. I need aprox 6db.


I tryed to load via preset 3 to copi into preset 1 with no result. Maybe the Scarlett playing trick on me?


Somebody an Idea?
On the left hand side is a "gain" field. Instead of 0 set it to +6 and reload the PRESET to the fusion amp.
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