Recent content by jcheavymetal

I have been using L70 since january as headphone amplifier but mainly as a pre-amplifier connected to two JBL powered studio monitors. I had no issues at all for a long time, but, from about 2 months ago, every time I turn it on it gives me a very loud pop on the monitors, independently of the...

I heard no issues about them until now like what happened to PA5 I and LA90D. I went for the PA7, waiting it to be delivered.

I suppose if it is listed it should be the final design, so Fosi came asking for suggestions but changed nothing at the final product.

I think they sound the same because they are made to sound the same, made to sound linear as the measurements show. I guess what you call "sounding different" is what we call here as "distortion".

I'm very interested in this review, but I would guess that Amir probably already have a unit with him waiting for review. I suggest asking him first before you buy it.

Amir is posting reviews on an almost daily base, I supose he got a lot of stuff for review and probably some of the new Topping stuff between them waiting in line.

Looks like it's already being sold in China https://world.taobao.com/item/731669350419.htm

After 3 months you won't buy it because you will be waiting for the new Topping announced amplifier measurements and reliability to compare lol

From their facebook page. Like the PA7 it will have a regular and a plus version.

The RA3 has the same specs as the first PA5, may the PA5 II be the same amp as RA3 in different form factor?

I have got the R3 error several times when turning my L70 on. Then I realized this always happen when I turn it on right after pluging it in electricity. Now I wait a while to turn it on after turning the power distributor on and have not got the error message anymore.

There's a very simple and effective way for these companies to prove that their products really work instead of a 37min "probably a little longer video" reply: double blind testing with independent raters. But none of them are doing this or at least showing the results. Thanks Amir for all your...

Ì think it was released when there weren't many streaming devices around, specially ones that weren't very expensive

Good to know, I may order the original E70. However I would still recomend a blind test to avoid a nocebo effect, you would not hear differences because you expect they to not exist, just to be rigorous to the scientific method.