I did on the previous page that you quotedCould you provide any more details on this ?
Higher input impedance
state of the art performance
At lower price
I did on the previous page that you quotedCould you provide any more details on this ?
Alas, my A70 Pro suddenly started clicking -- really sounded like it was switching input source for a small fraction of a second -- every 5 seconds or so. That was in PRE output mode. Switching to HPA or HPA+PRE modes made the problem go away for a few days. I emailed Apos and Topping, and Topping suggested I try updating the firmware. I tried that using a Mac laptop -- the A70 display screen showed FW V1.1 was installed, but the disc did not mount. I tried again with a different Mac and a PC, neither of them even got the screen to show, and the disc did not mount. Powering up the unit again, it suddenly froze up with "HPA DC Abnormal" on the screen. Disconnecting and reconnecting, same thing. So, Apos will be sending me a return ticket...
I've had the A70 since May 2023, and it has been great. I'm not looking to change, provided I can get this now defective unit repaired or replaced. Hopefully that won't take too long, but Apos does say they are understaffed...
I'll update when it is all resolved.
Looks like he bought in May 2023, on product launch.Such a shame about the reliability issues for the A70 Pro since it's pretty much in a league of its own, other than the L70. I guess no one should expect theirs to last very long.
Why?W.O.W
The combo is a killer. All they need is to add EQ to the DAC and I will part ways from the RME.
Hard to call it incredible when it kamikazes your headphones.Looks like he bought in May 2023, on product launch.
My recommendation for anything Topping is to wait 6 months after product launch.
I just got my A70Pro now, incredible device.
You say "it crapped out"I made an account here just to say this:
I bought an A70 Pro a week ago. My first headphone amp for my first turntable. It crapped out within two days. HP DC abnormal. No fix. I'm getting a replacement but this is absolutely inexcusable, ESPECIALLY if these machines are capable of taking out your headphones as well. I'll never be touching anything Topping again after this. It's a stupid amount of money to pay for something so damaging. If I wasn't already getting a replacement, I would find something else entirely. I'm not going to be happy if it happens again.
I don't know how old my model was. It was only in the store for a week before it fell into my hands.
Same crapout as everyone else it seems. HP DC abnormal. I got my entire setup curated by an audio specialist. "Taking out" means destroying. It happened while on, yes. Connected to a turntable during music playback.You say "it crapped out"
Can you share more actual details
Taking out your headphones means ?
It happened when you powered on?
Powered amp off?
During music playback ?
On head-fi forum I read someone suffered hearing and headphone damage with a Chord DAC/amp , so unfortunate things can always happen no matter price, origin , company reputation etc.
Same behavior for me BUT why do you change the input source so many times? It is useless and impracticalhi
Last week I received a Topping A70pro from audiophonic.fr, installed firmware 2.01, after connecting the XLR to the amplifier hypex NC502mp manufacturer https://www.rougeaudiodesign.com/ when switching the input and when muting, there was a crack in both speakers, I also tried completely disconnecting the shielding and other connection options as described in previous posts, it always crackles, the rest works perfectly because I don't switch the inputs, I only have one aune x8 source with opa sparkos, but the mute makes me angry because the sound is wonderful compared to the direct connection of the dac to the amplifier, I also have a second amplifier schiit vidar RCA connection with this connection no crackling and everything is as quiet as a church. I almost forgot, it behaves the same even after updating to 2.02
can anyone advise what it could be, how to remove the crackling, otherwise I am very satisfied with the A70 pro topping
the text is translated with google, I apologize if something is not clear
It's a long thread so I don't blame you, but I think it was mentioned only a couple pages back.I haven't seen your issue reported in this thread, but I guess I could have missed it.
So im not sure what "Same crapout as everyone else" in the context of this amp
I only seen this issue with older Topping amps