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#431567 - 03/10/19 03:05 PM Re: ADA Noise Floor [Re: BBIBH]
bman84 Offline
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Registered: 09/29/18
Posts: 180
Loc: Toronto, Ontario
Originally Posted By BBIBH
Couple of random thoughts;

- Did you have this issue previously - you mentioned hiss but not hum?

- Is it possible to check the ground at the receptacle?

- You mentioned isolating to the Denon, but have you removed all inputs (dvd player and all cables) from the Denon and checked? I would also remove the trigger and check for the hum. If you find the hum is gone, begin adding the cables back and see when/if it returns.

- is the dvd player connected to the same receptacle as the denon and amp?
- Do you have another set of RCA cables to test with? Highly unlikely, but I have experienced stranger things....


The noise sounded different before, but I think there are a few explanations:
-I first heard it when testing the ADA with M3's (lacking a midwoofer, and less sensative vs the M5's and VP180 that I have hooked up now)
-I tested the ADA/M3s in my office, which sounds different than my basement (9x11x9 office, vs 20x13x7.5 basement)
-I only had LCR channels enabled on my Denon at the time, so I'm guessing the internal power supply didn't have to work as hard as it's working now (with full 7.2.4 enabled)

I don't have another set of cables handy, but am working to acquire some, along with a basic receptacle tester


Edited by bman84 (03/10/19 03:10 PM)
_________________________
Axiom M5HP,VP180,M3,ADA1000
Anthem MRX 720
SVS SB-3000 (dual)

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#431568 - 03/10/19 03:09 PM Re: ADA Noise Floor [Re: brendo]
bman84 Offline
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Registered: 09/29/18
Posts: 180
Loc: Toronto, Ontario
Originally Posted By brendo
Ironically enough if you check out new Axiom vids. on You Tube. There's some new releases staring Andrew.

One regarding XLR vs RCA. In the vid. he mentions how a subwoofer connected to a different outlet can lead to issues. Also why not to use a balanced to non splitter. {It just cancels the balanced connection}.

Have you tried unplugging your Sub. yet Bman?



Yep subs were unplugged, along with all other connections to the Denon. All that I left were the 8 sets of speaker wire connected to the Denon, three RCA's between Denon and ADA, and the remaining 3 sets of speaker wire connected to the ADA. The buzz is only coming from those 3 speakers that are connected to the ADA.
_________________________
Axiom M5HP,VP180,M3,ADA1000
Anthem MRX 720
SVS SB-3000 (dual)

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#431569 - 03/10/19 03:47 PM Re: ADA Noise Floor [Re: bman84]
Mojo Online   content
axiomite

Registered: 01/21/07
Posts: 6061
What do you hear in the three speakers connected to the ADA when you remove each RCA cable from the ADA?
_________________________
M100,VP160,QS10HPx2,EP800,M5HP,M3,M50 v4
M80,VP150,QS8x4,EP600 v2
ADA-1000-2,3,1500-3
Air N2

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#431571 - 03/10/19 03:49 PM Re: ADA Noise Floor [Re: Mojo]
bman84 Offline
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Registered: 09/29/18
Posts: 180
Loc: Toronto, Ontario
Originally Posted By Mojo
What do you hear in the three speakers connected to the ADA when you remove each RCA cable from the ADA?


Silence
_________________________
Axiom M5HP,VP180,M3,ADA1000
Anthem MRX 720
SVS SB-3000 (dual)

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#431572 - 03/10/19 03:55 PM Re: ADA Noise Floor [Re: bman84]
Mojo Online   content
axiomite

Registered: 01/21/07
Posts: 6061
As each cable is removed, you hear silence in its respective speaker? What about the remaining speakers?
_________________________
M100,VP160,QS10HPx2,EP800,M5HP,M3,M50 v4
M80,VP150,QS8x4,EP600 v2
ADA-1000-2,3,1500-3
Air N2

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#431573 - 03/10/19 04:49 PM Re: ADA Noise Floor [Re: bman84]
Mojo Online   content
axiomite

Registered: 01/21/07
Posts: 6061
I really wish you could just sit back and soak in your M5s. I'm taking them in right now and I got the eerie feeling that Axiom had help from alien intelligence.
_________________________
M100,VP160,QS10HPx2,EP800,M5HP,M3,M50 v4
M80,VP150,QS8x4,EP600 v2
ADA-1000-2,3,1500-3
Air N2

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#431574 - 03/10/19 07:56 PM Re: ADA Noise Floor [Re: bman84]
bman84 Offline
veteran

Registered: 09/29/18
Posts: 180
Loc: Toronto, Ontario
I'll have to test them all out independently and see. I'm wondering if a pair of these would do the trick.

ART DTI Dual Transformer/Isolator Audio Interface https://www.amazon.ca/dp/B0009GUOQA/ref=cm_sw_r_cp_apa_i_h9yHCbAZTGR2G
_________________________
Axiom M5HP,VP180,M3,ADA1000
Anthem MRX 720
SVS SB-3000 (dual)

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#431575 - 03/10/19 08:25 PM Re: ADA Noise Floor [Re: bman84]
bman84 Offline
veteran

Registered: 09/29/18
Posts: 180
Loc: Toronto, Ontario
As I remove the input on the ADA for each of the LCR channels, the buzz in each speaker disappears, and remains in the other two speakers that are still connected.

The buzz doesn't completely kill the experience, but it is noticable during quiet parts in movies.


Edited by bman84 (03/10/19 08:36 PM)
_________________________
Axiom M5HP,VP180,M3,ADA1000
Anthem MRX 720
SVS SB-3000 (dual)

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#431579 - 03/12/19 01:50 PM Re: ADA Noise Floor [Re: bman84]
BBIBH Offline
connoisseur

Registered: 01/10/02
Posts: 1309
Loc: Canada
Do you still have the original ADA?

I would be curious to swap both in an out noting the differences
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Mike

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#431581 - 03/12/19 09:31 PM Re: ADA Noise Floor [Re: bman84]
bman84 Offline
veteran

Registered: 09/29/18
Posts: 180
Loc: Toronto, Ontario
The original ADA is bricked, sadly. The ART DTI's will be here in a day or two. Hoping they'll do the trick
_________________________
Axiom M5HP,VP180,M3,ADA1000
Anthem MRX 720
SVS SB-3000 (dual)

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