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FH9HVX - Budget Conscious 100w Class AB for Lean Times
FH9HVX - Budget Conscious 100w Class AB for Lean Times
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Old Yesterday, 02:16 AM   #611
xrk971 is offline xrk971  United States
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FH9HVX - Budget Conscious 100w Class AB for Lean Times
Hi Wtnh,
So have you had enough time to listen to the new FH9 amp to tell us your listening impressions? I think you have LX mini's for speakers?
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Old Yesterday, 03:16 PM   #612
wtnh is offline wtnh  United States
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Only a few hours so far with my "street speakers", but I can say it is very clean in the midrange and high end and has plenty of low-end "grunt". I would describe it as effortless since it has so much reserve power.

I am still tweaking bias. My workbench area is a bit chilly (65 F) so it takes about an hour of playing at moderate volumes to reach thermal equilibrium.

Still to do - button it up and do some full-power dummy load testing and distortion measurements.

I may get brave and try it with my Martin Logans - but I will probably wait until I can install SSRs. I may a-b it with my McCormack DNA (500 Watts), but I suspect it will hold its own.

So far I am very happy with the sound! I would recommend this amp to anyone wanting to build a quality A/B amp and I am very glad I chose it.
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Old Yesterday, 07:13 PM   #613
xrk971 is offline xrk971  United States
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FH9HVX - Budget Conscious 100w Class AB for Lean Times
Glad to hear that the amp is sounding promising. Effortless is a good word to summarize it.

Quote:
I am still tweaking bias. My workbench area is a bit chilly (65 F) so it takes about an hour of playing at moderate volumes to reach thermal equilibrium.
Your chassis heatsinks are probably oversized. I would not worry about it reaching equilibrium - it gets there eventually. You can also leave it on - but maybe wait until you have an SSR speaker protect to do that.
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Old Yesterday, 09:19 PM   #614
dBel84 is offline dBel84  United States
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Mine has been left on for weeks at a time. Still perfect and no bad behavior.
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