Topping A90
Jul 7, 2020 at 3:45 AM Post #346 of 1,442
Jul 7, 2020 at 4:22 AM Post #347 of 1,442
it has an impressive specifications sheet. Thanks for the information, Muataz.
 
Jul 7, 2020 at 4:59 AM Post #348 of 1,442
If using RCA inputs, can we use balanced outputs ?
 
Jul 7, 2020 at 5:38 AM Post #349 of 1,442
If using RCA inputs, can we use balanced outputs ?
Yes but all you are really getting is more output power vs se output in most cases. There are some instances the where the output power is the same in both like the SMSL sp200, in which case there is no real benefit.

Still new and learning so if this is wrong I’m sorry!
 
Jul 7, 2020 at 6:29 AM Post #351 of 1,442
If using RCA inputs, can we use balanced outputs ?

if your amp has both balanced and SE headphone outputs and gives more or less double power in balanced compared to SE outputs, use balanced with the corresponding headphone cable. You have peid money for two power amps on each channel of the balanced output (I know it's an oversimplification), but only one of them is used on each channel of the SE output.
 
Jul 7, 2020 at 8:11 AM Post #352 of 1,442
Not sure how stellar lineout is on the Bifrost but I use RCA splitters on my M400 to connect two separate amps with no noticeable issues. I suppose as long as you use a decent cable, shouldn't introduce any noticeable noise. What amp do you plan on using beside the A90?

LOXJIE P20 ... nice neat stack .. little room on my desk
 
Jul 7, 2020 at 3:48 PM Post #354 of 1,442
I’ve just received my A90 and it’s got a bit wobbly volume knob. Has anyone experienced the same issue?

Mine isn't wobbly at all with good tension. Other than the knob being a bit short, feels pretty darn good for a $500 amp.
 
Jul 7, 2020 at 4:12 PM Post #356 of 1,442
C83FEBB4-12D1-4EC8-A2C2-F3735326710D.jpeg
I got mine yesterday as well ...Not wobbly for me ... but if I “King Kong it“ I’m sure it would wobble after breaking it
 
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Jul 7, 2020 at 7:16 PM Post #357 of 1,442
Just got the A90/D90MQA stack -- Apos delivered 3 days ahead of schedule! Really delighted with the sound. This may be an endgame setup, as I can't imagine what more I'd want or expect sonically, from, say, a Chord DAVE or some other ultra-high end gear. The 4.4mm Pentaconn output is a game-changer, as it allows me to have one cable for both desktop and DAP. I was curious as to how much better it might sound than my HiBy R6 Pro, and the answer is: quite a bit. The whole presentation is just BIGGER, punchier, and smoother. More detail everywhere. Sound feels very warm and organic, pairs really well with Focal Utopias. Loving it with both MQA and Qobuz Hi-Res. This will be the acid test for which streaming service I marry.

IMG_1999.jpeg
 
Jul 8, 2020 at 2:53 AM Post #358 of 1,442
Quick Question audio experts, Just ordered the A90... already have the THX 789... Can I use the A90 as a preamp balanced to my THX 789? trying to share the D90 DAC between the A90 and THX 789. 789 will power my TH900 and A90 will power my HD800S... is this a good idea or should i use the RCA output of the D90 to the THX 789?
 
Jul 8, 2020 at 3:01 AM Post #359 of 1,442
Quick Question audio experts, Just ordered the A90... already have the THX 789... Can I use the A90 as a preamp balanced to my THX 789? trying to share the D90 DAC between the A90 and THX 789. 789 will power my TH900 and A90 will power my HD800S... is this a good idea or should i use the RCA output of the D90 to the THX 789?

Use XLR/RCA output of D90 with splitter for both amp.
 
Jul 8, 2020 at 3:02 AM Post #360 of 1,442
Quick Question audio experts, Just ordered the A90... already have the THX 789... Can I use the A90 as a preamp balanced to my THX 789? trying to share the D90 DAC between the A90 and THX 789. 789 will power my TH900 and A90 will power my HD800S... is this a good idea or should i use the RCA output of the D90 to the THX 789?

Use XLR to A90 and RCA to 789
 

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