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Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427552 12/14/17 01:24 AM
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Yes, it sounds like because your room is so big, you had to turn the gain knob on the back to 3/4. That, combined with opening it up to 150 Hz, caused compression.

I've never seen compression curves for the 500 but here they are for an older version of the 800 across its entire usable band.

http://www.hometheatershack.com/forums/sub-zone-subwoofer-testing/62085-axiom-ep800.html


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Re: Dual EP800 vs SVS Ultra 16
AAAA #427553 12/14/17 01:26 AM
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Originally Posted By Serenity_Now
Changing crossover points changes time alignment. You are only ever really in phase in a narrow band between the sub and speakers. You just got lucky and summed correctly when you dialed it down. smile

This is where being able to independently set delay comes in handy. With multiple subs you can create a quasi planar wavefront. This is how to max out impact from smaller subs.


So the continuously variable phase control should really help with time alignment, right?


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Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427554 12/14/17 01:27 AM
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Shalamar works perfectly with the T's.... Erasure "chains of love" is another perfect bass test, talk about slam.

If I dial this in further with either two more EP500's or the EP800 in the one corner I just know it's going to work, I'll have to call this SlimSlam...

Don't forget; I am using all original Analog vinyl in perfect condition on a VPI Ares3 tt with a SME Series iv tonearm (I machined the board to make it work, two days work).... it makes a huge difference over CD's, night and day. The dynamic sound is huge

Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427555 12/14/17 01:28 AM
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Also delay can be set with the distance setting on the receiver, no?


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Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427556 12/14/17 01:40 AM
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OK, so we adding in all kinds of very technical tweaks here.

If you use some of the room correction software, I think that you can adjust the time delay between various speakers. However I turned off all room correction from my Anthem ARC2 in the preamp. The Bryston's jumped out of their veneer; major improvement just letting Bryston's be Bryston's. I was shocked at how much better everything sounded, I mean shocked.

I called Bryston to speak to them about this, I was told that he was very pleased to hear what I had to say; he said they don't like any room correction with the Bryston speakers, the speakers stand on their own without any 'filtering'. If the design is sound, they don't need to be 'corrected'.

I have to agree with him on this. I originally purchased the SVS Ultra Towers, they were OK without room correction, but when I ran the correction, they popped and came alive. Because of that, I automatically ran the correction algo's on the T's when I brought them home.... I was so blah on it, so I turned it off and holy moly, it was like I tripled the power and added another pair of T's into the room. In fact I thought I had made a screw up on the room scan. I did it over again and then again several times with the mic at varied points in the room. Each time it couldn't come close to the T's alone, no correction; it was like taking a pillow off the drivers.

I like to keep things very simple, I actually need to. I like a simple phase pot, as now added to the amps on the Axiom subs! Fun to play with and man can I dial it in. They say most cannot hear the differences, but I sure can.

Last edited by Slimpikins; 12/14/17 01:44 AM.
Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427557 12/14/17 01:47 AM
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80hz is the most recommended from most AVR. manufacturers especially those with the THX certification.
It is essentially setting your speakers to a small setting though the biggest of small. Which itself is good since you have subwooferage for the low notes.

I myself have the M80s and a EP500 as part of my home theater. Was previously an Onkyo and Integra user those A.V.R.s would always set all my speakers to 40hz. almost cancelling out my subs I usually reset them to 60hz since I use an external 3 channel ADA1250 have no worries of power with lower setting.

Now in the last week have joined the Axiom/Anthem club which the Anthem MRX720 finally set my crossovers to 80 itself?{weird first time}

With your external Amperage. you could safely have crossover as low as you want without any power concerns. Unless you have it at 11 continuously.

Congrats

This is quite an interesting thread as most of us have been mentioning a showdown of the 2 brands for quite sometime now.
Although not a showdown a fun read

Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427558 12/14/17 01:47 AM
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I will agree with you that without room correction, SPL (volume) increases. And when a speaker is louder, it sounds better to us smile Also room correction can make highs sound bad. There can be other deleterious effects also.

So look beyond just volume. Your room may be perfect and not need any correction. I can't say the same for my room. Audyssey XT32 worked magic.

Now for Bryston to say that if the design is sound they don't need to be corrected, speaks volumes about how much they need to learn about the system comprised of the speakers, the room and the brain/ears. A better designed speaker will sound better though in a bad room than a poorly designed speaker for sure.


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Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427559 12/14/17 01:58 AM
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Absolutely, the speakers without ARC2 sound 'louder', definitely. but not twice as loud. But more importantly, the mid's and high just came alive, and the effect of the sound stage as they like to say, whatever that is, had some meaning finally. I could hear instruments in places I had not heard them before.

I have on occasion switched the ARC2 back on just to play and each time I do it, I feel like I just threw water on things.

Perhaps ARC is going to work great on more conventional rooms, ones which are rectangular as in most homes, but I have been dealing with a real odd ball room with multiple materials in the construction which make each wall different and I am sure this plays into this. Maybe the software engineer who wrote ARC configured it for a standard type of room? There is a lot to this stuff.

Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427560 12/14/17 01:58 AM
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It can't possibly be that the Ts are better than the SVS Ultra Towers. I mean...the SVS have composite glass-fiber cone with excellent stiffness/mass ratio for high sensitivity and pistonic behavior beyond pass band.

It goes to show that a speaker (like anything) has to be designed as a system. It's not about an esoteric cabinet or driver or cross-over but rather the effective integration of all the sub-systems and knowing what the secret sauce is that leads to that effective integration. For Axiom, it's the interpretation of the Family of Curves.


House of the Rising Sone
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Dedicated mid-woofers are over-rated
Re: Dual EP800 vs SVS Ultra 16
icehawk21 #427561 12/14/17 02:00 AM
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SVS is pistonic huh? No comment

I like aluminum, black, white, caps, no caps...... Axiom white, Bryston Black, it's all good


Last edited by Slimpikins; 12/14/17 02:05 AM.
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