Dual Merus MA12070 Amplifier Sabaj A20 fully balanced : pictures inside )

[ceausuc]

does A20a also have a SDB sound preset? or is something that only SMSL amps have?

 

[gasolin75]

yes but it's not a denon sdb setting

 

[DACslut]

Not recommend used with the topping D10, Our laboratory test will be noisy when used with D10, and the noise comes from D10 not A20a.
And the power supply behind a20a is recommended to be connected to a20d, if it is connected to other decoding power supply, you need to consult that brand.

I plan on connecting the A20a to my Sabaj D5 with "Audioblast 2ft HQ-4 Star Quad" balanced XLR cables. I'm really looking forward to their synergy. Has a Sabaj D5 been successfully lab tested with the A20a? Thanks!

 

[gasolin75]

I plan on connecting the A20a to my Sabaj D5 with "Audioblast 2ft HQ-4 Star Quad" balanced XLR cables. I'm really looking forward to their synergy. Has a Sabaj D5 been successfully lab tested with the A20a? Thanks!

Use google

https://www.audiosciencereview.com/...ew-and-measurements-of-sabaj-d5-dac-amp.8337/

 

[gasolin75]

Atm im using Mission LX3 MKII with the amp and power wise it's approved, it sounds good but not as much bass as i hoped when changing to the missions

 

[DACslut]

Use google

https://www.audiosciencereview.com/...ew-and-measurements-of-sabaj-d5-dac-amp.8337/

Thanks anyway. I've read Amir's review and the A20a didn't even exist on the "drawing board" at that time. The question was specifically directed at peterwen and whether the D5 was one of the DACs tested with their A20a. I'm assuming things will be fine, however I just wanted a little reassurance from the manufacturer's representative.

 

[gasolin75]

Sabaj A20d is the matching dac https://hifi-express.com/products/sabaj-a20d-mqa-desktop-hi-res-es9038pro-dac

 

[DACslut]

Sabaj A20d is the matching dac https://hifi-express.com/products/sabaj-a20d-mqa-desktop-hi-res-es9038pro-dac

No kidding Sherlock! I can't afford another DAC of that class right now and my Sabaj D5 is only a few years old. It may be approaching obsolescence but it's still quite relevant to me in this particular situation.

 

[gasolin75]

sabaj D5 is 341 euro https://hifi-express.com/products/sabaj-d5-audio-dac-ess9038pro-heaphone-amplifier

Sabaj A20d is 319 euros https://hifi-express.com/products/sabaj-a20d-mqa-desktop-hi-res-es9038pro-da

 

[DACslut]

sabaj D5 is 341 euro https://hifi-express.com/products/sabaj-d5-audio-dac-ess9038pro-heaphone-amplifier

Sabaj A20d is 319 euros https://hifi-express.com/products/sabaj-a20d-mqa-desktop-hi-res-es9038pro-da

Ha ha, loan me the U.S. $420+ and I'll be glad to let you know what I think of it's pairing with my A20a. Besides, I'm waiting for Amir's scientific review and expert opinion of the A20d before even thinking of replacing my D5!

 

[gasolin75]

Ha ha, loan me the U.S. $420+ and I'll be glad to let you know what I think of it's pairing with my A20a. Besides, I'm waiting for Amir's scientific review and expert opinion of the A20d before even thinking of replacing my D5!

$374.21 for the A20d

 

[gasolin75]

Burn in time for the chip ?

 

[6th0]

A20a noise generation problem

What happened to your A20a noise problem after that?

No change. I unplugged everything going into the amp but the power and the speakers. Same whine.

 

[gasolin75]

a

No change. I unplugged everything going into the amp but the power and the speakers. Same whine.

Different power socket,outlet,mains distributor and nothing else connected to that, only the amp ?

 

[Moosi]

And the power supply behind a20a is recommended to be connected to a20d, if it is connected to other decoding power supply, you need to consult that brand.

What about the "a10d"? Doesn't the a10d also have the 15v input? Both a10d and a20d can be plugged to the A20a, right?

 

[gasolin75]

What about the "a10d"? Doesn't the a10d also have the 15v input? Both a10d and a20d can be plugged to the A20a, right?

The 2 amps should sound almost the same but your forget somthing, the Sabaj A20 A has xlr (balanced) in and the a20D alos has xlr balanced out, the a10 d doesn't, as well as the A10 a amp, it to doesn't have balanced in

 

[6th0]

a



Different power socket,outlet,mains disiributor and nothing else connected to that, only the amp ?

To summarize my epic journey...

I started with a 3E SY-DAP1002 with a an E30 and L30 plugged into it. USB from the PC, RCA to all components. Dead silent at max volume.

I then bought a DA-9, which had wild DC offset variation, but picked up a lot of interference from the PC and USB (especially when I moved my wireless mouse).

I replaced the DA-9 with an A20a. The A20a still picked up USB noise so I went optical from the PC instead. The noise quieted a bit but there was a noticeable high pitched whine. The whine actually increases in volume when I disconnect the other components and only having the amp and the speakers connected.

I now have an AO200 to compare it to. The AO200 also picks up USB noise, so I am using optical. However, unlike the A20a, there is no noise at max volume with or without components plugged into it.

At some point I may try USB again, but with some sort of isolator. However, I'm assured that I really won't hear any difference so it might just be throwing money down the drain.

To me, the biggest mystery is why the 3E amp never picked up any interference over USB but all other amps do.

 

[gasolin75]

To summarize my epic journey...

I started with a 3E SY-DAP1002 with a an E30 and L30 plugged into it. USB from the PC, RCA to all components. Dead silent at max volume.

I then bought a DA-9, which had wild DC offset variation, but picked up a lot of interference from the PC and USB (especially when I moved my wireless mouse).

I replaced the DA-9 with an A20a. The A20a still picked up USB noise so I went optical from the PC instead. The noise quieted a bit but there was a noticeable high pitched whine. The whine actually increases in volume when I disconnect the other components and only having the amp and the speakers connected.

I now have an AO200 to compare it to. The AO200 also picks up USB noise, so I am using optical. However, unlike the A20a, there is no noise at max volume with or without components plugged into it.

At some point I may try USB again, but with some sort of isolator. However, I'm assured that I really won't hear any difference so it might just be throwing money down the drain.

To me, the biggest mystery is why the 3E amp never picked up any interference over USB but all other amps do.

I have my pc connected to my power distributor, my fosi audio BT20a and sabaj A20 a has the problem, i couldn't use it with out noise, so i could use my hifi power mains, cable (isotek), i had to move my pc to a different power distributor

Jitterbug or one of those fra ifi ?

Do you use a generic usb cable ?

 

[SeriousSam70]

He's talking about D10 Balanced not D10.

Do you know why there would be a problem using Topping D10 Balanced with Sabaj A20a ?

 

[milan616]

Do you know why there would be a problem using Topping D10 Balanced with Sabaj A20a ?

This pair doesn't have a problem, I have them on my desk right now.