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Re: ADA Noise Floor
BBIBH #431567 03/10/19 07:05 PM
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bman84 Offline OP
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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

Last edited by bman84; 03/10/19 07:10 PM.

Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: ADA Noise Floor
brendo #431568 03/10/19 07:09 PM
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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 VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: ADA Noise Floor
bman84 #431569 03/10/19 07:47 PM
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What do you hear in the three speakers connected to the ADA when you remove each RCA cable from the ADA?


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
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Re: ADA Noise Floor
Mojo #431571 03/10/19 07:49 PM
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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 VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: ADA Noise Floor
bman84 #431572 03/10/19 07:55 PM
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As each cable is removed, you hear silence in its respective speaker? What about the remaining speakers?


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: ADA Noise Floor
bman84 #431573 03/10/19 08:49 PM
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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.


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: ADA Noise Floor
bman84 #431574 03/10/19 11:56 PM
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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 VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: ADA Noise Floor
bman84 #431575 03/11/19 12:25 AM
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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.

Last edited by bman84; 03/11/19 12:36 AM.

Axiom M5HP VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
Re: ADA Noise Floor
bman84 #431579 03/12/19 05:50 PM
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Do you still have the original ADA?

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


Regards,

Mike
Re: ADA Noise Floor
bman84 #431581 03/13/19 01:31 AM
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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 VP160 M3 ADA1000
Anthem MRX 720
SVS SB-3000 (dual)
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