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Old 19th March 2012, 05:29 PM   #21
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O_o I hope they will refund you .
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Old 19th March 2012, 06:17 PM   #22
JoeDJ is offline JoeDJ  United States
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Originally Posted by Seiya0890 View Post
O_o I hope they will refund you .
"Parts Express" (PE) has great customer service and return policies so, getting a refund wiil be not be a problem
However, as I told PE, if it can be dertermined that It is just this unit that is defective, I would like a replacement and only want a refund if they determine that all, PT-60s have this problem.

I really like the amp otherwise so, I'm not really hoping for a refund.

In the meantime, I have been researching the PT-20MK2 and it seems like a great amp and will get one if the PT-60 is no longer an option.

As not many people even listen to broadcast FM anymore in their homes, PE might honestly not be aware of the problem with the PT-60.

Last edited by JoeDJ; 19th March 2012 at 06:23 PM.
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Old 20th March 2012, 01:27 AM   #23
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Originally Posted by JoeDJ View Post
Having had to retun my Topping TP-60 to PE due to massive RF inteference on the FM band, I might try the Topping TP20-MK2 next if it is determined that all TP-60s have the same problem.
I called PE today and they will test the amp and then test another PT-60 to see what the problem is reguarding the RF interference.

The PT-60 does not have any FCC compliant labels on them and PE seems to be the sole US importer of them They might not even be legal to sell in the US.

At least the PT-20 has a FCC compliant outboard PS.
I have owned other Topping tripath amps with no quality issues, but I do not have firsthand experience with the Topping TP60. Right now I am using a pair of PopPulse T150PRO TA2022 amps in mono block configuration and they sound fantastic. I am running a Mitsubishi DA-F20 fm tuner and have had no RF problems at all with these units . The T150PRO is easy to mono block; just move a molex connector to bypass the volume pot and set a switch on the board for mono block.

Here is a photo: http://www.flickr.com/photos/76563585@N03/6849741450/
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Old 20th March 2012, 02:13 AM   #24
JoeDJ is offline JoeDJ  United States
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I am aware of the potential of the tripath chips to in emitt RF interference but, the metal cases usally take care of it.

RFI is not a problem with the Lepai 2020 I got.

So, I'm hoping it's just a defective unit.
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Old 21st March 2012, 03:28 AM   #25
fakeout is offline fakeout  Canada
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Does anyone know if you connect a Topping amp with banada plugs, is there a chance you can get electrocuted by touching the banana plugs?
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Old 21st March 2012, 07:50 PM   #26
JoeDJ is offline JoeDJ  United States
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Originally Posted by Seiya0890 View Post
Thanks for your advices guys ^^, I decided to go for a Topping TP20 MK2 for now .
BTW, will you let us know how you like when you get it?
Like I said, I may get one myself.

In the meantime, I'm using my Lepai 2020 and I do like the clean up front midrange

Some do not like the sound of the T2020 chip because they say it sounds "tinny" whatever that means.

I suspect some might be too fixated on bass.
Granted, they can benefit from a sub but beyond that.......
Back in the '70s, JBL's philosophy was that the midrange is the heart of the audio spectrum and they are right. Without a great midrange, what do you have? (I had a pair of the JBL L100s fed by a Heathkit AA-1640 amp)
Some have rediscovered this truth and they like the sound of the T2020 chip.

Anyway, my speakers are only 88db efficient and the Lepai 2020 gives adequate volume for me. I presently live in an apartment so I usually can't play my sys very loud most of the time anyway.
One of the beauties of the 2020 chips seems to be that they sound great even at lower volumes and there is no sweet volume spot as with some other amps.

So after careful adjustmets of my sys EQ that wound up basically "flat" and, my sub that has the Xover set at about 55 hz, the Lepai sounds pretty good.
I'm shure the Topping TP-20 would sound even better.

Last edited by JoeDJ; 21st March 2012 at 08:05 PM.
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Old 22nd March 2012, 09:54 PM   #27
fakeout is offline fakeout  Canada
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Is there a way to connect a bare wire to a Topping T amp?
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Old 23rd March 2012, 01:07 AM   #28
JoeDJ is offline JoeDJ  United States
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Originally Posted by fakeout View Post
Is there a way to connect a bare wire to a Topping T amp?
If you mean to the speaker teminals, yes, they also accept a bare wire.
BTW, you must avoid shorting the speaker wires/terminals on any brand T amp as it will instantly fry the chip!

Last edited by JoeDJ; 23rd March 2012 at 01:19 AM.
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Old 23rd March 2012, 01:35 AM   #29
fakeout is offline fakeout  Canada
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Originally Posted by JoeDJ View Post
If you mean to the speaker teminals, yes, they also accept a bare wire.
BTW, you must avoid shorting the speaker wires/terminals on any brand T amp as it will instantly fry the chip!
How do you avoid shorting the speaker wires/terminals?
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Old 23rd March 2012, 07:20 PM   #30
JoeDJ is offline JoeDJ  United States
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How do you avoid shorting the speaker wires/terminals?
Assuming you are serious......... just don't accidently connect the the +& - which can happen when you connect the speaker wires either to the amp or the speakers. Just be careful and double check your connections before turninng on the amp. Even a stray strand of wire can short it

Last edited by JoeDJ; 23rd March 2012 at 07:28 PM.
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