The astounding new AS-EQ1 SubEQ goes on sale!

[Roadkill]

Ed,

At the risk of being perceived a pest, I will ask my question again. Perhaps you overlooked my earlier post.

Will you be adding balanced input/outputs at a later date?

Thanks,

[drdoan]

Based on my love of the Audyssey in my Denon, this should be a no brainer. It is on my to do list. You will see some equipment I am selling the sales thread soon! this Audyssey stuff is just amazing! Dennis

[kingair]

Does this mean that after purchasing the AS-EQ1 SubEQ, I still need a laptop to get this to work right?

[Sonnie]

You will need some kind of computer... a laptop would most likely be preferable.

[oakboy37]

Why only windoze??

I run a mac....

[kingair]

I have a great deal of respect for SVS. I own A PC13-Ultra and I am interested in EQ. I have been looking at the "Anti-Mode 8033" which sells for less then half of the AS-EQ SubEQ and is fully automatic, and I don't need a computer to use. I have read some pretty good reviews for the Anti-Mode 8033. What makes the SVS unit better?

[drdoan]

It is designed by Audyssey. Tomlinson Holman (THX) and his team have built some very sophisticated algorithms into this unit. But, as always, compare. Dennis

[Ed Mullen]

Roadkill wrote:

Ed,

At the risk of being perceived a pest, I will ask my question again. Perhaps you overlooked my earlier post.

Will you be adding balanced input/outputs at a later date?

Thanks,

The current build version of the AS-EQ1 does not have balanced I/O, nor does the Audyssey version of this device (we are co-releasing it, and the Audy version will only be sold through licensed Audy installers).

The addition of balanced I/O will require new internal hardware/PCBs, and is not being contemplated at this time. The overwhelming majority of enthusiasts use RCA connections for the subwoofer and the balanced I/O crowd, however vocal, remains a distinct minority. We did ask about balanced I/O when the product was in the very early planning stages and Audy said no because this unit is based off the Audy MultEQ XT Pro architecture, which at the time only offered RCA I/O.

If this product sells well and we (SVS/Audy) can recoup the significant investment bringing it to market, and the requests for balanced I/O remains high, we'll revisit the subject on V2 (if there is one), but there is certainly nothing like that in the works right now.

[Scott_R_K]

Ed Mullen wrote:

The AS-EQ1 will work fine with your MCACC system. When the Pio pings the subwoofer, the AS-EQ1 will route that signal back to the Pio mic input jack. So the Pio sees a perfect subwoofer signal and won't build a correction file.

By "route the signal" you mean simply via Audio not some connection to the Pio mic input jack?

After you run MCACC, level match the subwoofer to one of your front stage speakers using the level matching feature. This sends a broad band pink noise signal to the speaker (select an analog input on the Pio) and a rumble tone to the subwoofer. Adjust the gain on the subwoofer until it matches the speaker and then run the AS-EQ1 routine.

You can skip the level matching step if you have already set the subwoofer level to match the mains via other means (like manual test tones and an SPL meter). But don't allow the MCACC to set the subwoofer level because it will also build a correction file at the same time.
On my Pio , the MCACC System will not EQ the Sub and only as low as the applied crossover . Do you think that SV Sound might be able to Post , on your Web site , Instructions for interfacing the AS-EQ1 with various AVR Systems ?

Thanks ,

Scott........................

[Roadkill]

Ed Mullen wrote:

The current build version of the AS-EQ1 does not have balanced I/O, nor does the Audyssey version of this device (we are co-releasing it, and the Audy version will only be sold through licensed Audy installers).

The addition of balanced I/O will require new internal hardware/PCBs, and is not being contemplated at this time. The overwhelming majority of enthusiasts use RCA connections for the subwoofer and the balanced I/O crowd, however vocal, remains a distinct minority. We did ask about balanced I/O when the product was in the very early planning stages and Audy said no because this unit is based off the Audy MultEQ XT Pro architecture, which at the time only offered RCA I/O.

If this product sells well and we (SVS/Audy) can recoup the significant investment bringing it to market, and the requests for balanced I/O remains high, we'll revisit the subject on V2 (if there is one), but there is certainly nothing like that in the works right now.

That's disappointing but thank you for the reply.

[brucemck2]

Great product. (I admit to some bias: I've owned several SVS subs and have several Audyssey boxes in my home.)

Three questions ...

(1) What is the approximate "latency" of the unit? (How much "distance" will I have to add to my processor to account for your unit being in the processing chain?)

(2) I assume it corrects each of two subs independently (the two sub outs can be set as independent subs, and are not two feeds of a single mono sub or single correction filter.)

(3) My processor only has balanced outs, and my subs only have balanced in. Any reason I couldn't just use balanced to single ended adaptors?

Thanks.

[mcallister]

I currently have an Anti Mode 8033. My sub setup is somewhat odd as I have a 7.2 Cubic Ft sealed Maelstrom and a 650 litre Sonotube using a Avalanche 18 colocated with good results. Any reason to move to one of these SVS units besides obviously the on screen goodies?

[Ed Mullen]

Scott_R_K wrote:

By "route the signal" you mean simply via Audio not some connection to the Pio mic input jack?

In my Pio , the MCACC System will not EQ the Sub and only as low as the applied crossover . Do you think that SV Sound might be able to Post , on your Web site , Instructions for interfacing the AS-EQ1 with various AVR Systems? Thanks , Scott........................

If you place the AS-EQ1 in external calibration mode, you connect your Pio MCACC mic to the AS-EQ1. It will pass through the mic connection to your AVR mic input. You also connect your subwoofer output jack to the AS-EQ1.

The mic jacks on the AS-EQ1 will function as a pass through for all MCACC calibration pings, save for the subwoofer. When it pings the subwoofer, the AS-EQ1 will not allow the signal to pass to the subwoofer. Instead it routes the signal back to your Pio mic input. So the Pio will detect a subwoofer, but it will not build a correction file or distance file for it. The AS-EQ1 will do that for you during the EQ routine, and it will give you the correct subwoofer distance to input into your Pio.

[Ed Mullen]

brucemck2 wrote:

Great product. (I admit to some bias: I've owned several SVS subs and have several Audyssey boxes in my home.)

Three questions ...

(1) What is the approximate "latency" of the unit? (How much "distance" will I have to add to my processor to account for your unit being in the processing chain?)

(2) I assume it corrects each of two subs independently (the two sub outs can be set as independent subs, and are not two feeds of a single mono sub or single correction filter.)

(3) My processor only has balanced outs, and my subs only have balanced in. Any reason I couldn't just use balanced to single ended adaptors?

Thanks.

The electrical latency of the AS-EQ1 is ~8.5 ms (previously stated). It will measure the acoustic distance of the subwoofer, and its own latency, and give you the correct distance to input into your AVR.

The AS-EQ1 can operate in dual discrete sub mode or dual mono sub mode - you pick the correct option during the set-up screen.

Balanced to RCA adapters will work fine.

[Wayne A. Pflughaupt]

brucemck2 wrote:

(3) My processor only has balanced outs, and my subs only have balanced in. Any reason I couldn't just use balanced to single ended adaptors?

Just remember that anytime you insert an unbalanced component into a signal path, the signal path becomes unbalanced.

Regards,
Wayne

[Scott_R_K]

Ed Mullen wrote:

If you place the AS-EQ1 in external calibration mode, you connect your Pio MCACC mic to the AS-EQ1. It will pass through the mic connection to your AVR mic input. You also connect your subwoofer output jack to the AS-EQ1.

The mic jacks on the AS-EQ1 will function as a pass through for all MCACC calibration pings, save for the subwoofer. When it pings the subwoofer, the AS-EQ1 will not allow the signal to pass to the subwoofer. Instead it routes the signal back to your Pio mic input. So the Pio will detect a subwoofer, but it will not build a correction file or distance file for it. The AS-EQ1 will do that for you during the EQ routine, and it will give you the correct subwoofer distance to input into your Pio.

Thanks Ed , Sounds like this is a truly well thought out Product and sounds like you've had experience with the Pio MCACC System . Two big plus's in my books . Hopefully people will post some of their before and after shots with this System .

Scott...................

[jagman]

Ed Mullen wrote:

The AS-EQ1 has more processing power and filter resolution than the consumer version of Audy MultEQ XT. It can also measure in more locations (up to 32) if you have a large room and listening area.

The problem with a "house curve" is that it's a static solution which only works at one playback volume. It may be inadequate at lower volumes, and it may be overly intrusive at higher playback volumes. Hence the introduction of Audy Dynamic EQ, which applies a continuously varying bass "house curve" (i..e, compensation for our relative insenstivity to deep bass) as a function of playback volume. This is a far more elegant solution that the static/fixed house curve applied uniformly at all playback volumes.

So if you value the concept of a house curve, and you want to take it to the next level (including the speaker channels, and not just the subwoofer), then get a processor which features Audy Dynamic EQ.

Interesting... and you make a strong argument! You could work for Audyssey . So you are saying that this product, when added to to a receiver with MultEQ XT and DynamicEQ, could put out phenomenal, theatrical sound at any volume level and any seat in the room, provided the receiver has a good bass management system? I think this product on its own would do wonders for bass, but the combo of it with a receiver as described above would be the total package.

[Sonnie]

jagman wrote:

Interesting... and you make a strong argument! You could work for Audyssey . So you are saying that this product, when added to to a receiver with MultEQ XT and DynamicEQ, could put out phenomenal, theatrical sound at any volume level and any seat in the room, provided the receiver has a good bass management system? I think this product on its own would do wonders for bass, but the combo of it with a receiver as described above would be the total package.

Sounds like a plan to me... since I have the Onkyo 876 with XT and DEQ...



Ed... To clarify - in a completely symmetrical dedicated HT room front to back, a pair of subs in the front of the room symmetrically placed... along with a pair of subs in the rear of the room symmetrically placed... would using one channel for front subs and the other channel for rear subs work out well with the EQ1? Thanks!

[JimP]

Ed,

I've been thinking about this units capability of corrections in the time domain. I understand that these corrections are independent of phase corrections due to adjustments in the subwoofer distance. My question is are these time corrections the same as eliminating long decay times and is it a seperate process or only a consequence of reduction of peaks in frequency response?

[jmalto]

Ed Mullen wrote:

The AS-EQ1 has dual subwoofer feeds and it can be programmed for either dual mono or dual discrete. You can certainly operate more than one subwoofer off each channel by using a Y splitter. So 4 subs (2 discrete channels using a splitter at each channel) are not a problem.

Nice, looks like I will be putting an order in for one

[Ed Mullen]

jagman wrote:

Interesting... and you make a strong argument! You could work for Audyssey . So you are saying that this product, when added to to a receiver with MultEQ XT and DynamicEQ, could put out phenomenal, theatrical sound at any volume level and any seat in the room, provided the receiver has a good bass management system? I think this product on its own would do wonders for bass, but the combo of it with a receiver as described above would be the total package.

That pretty much sums it up. I have a 3808 CI, and I did the Pro upgrade and it really made me a believer in Audyssey products. The consumer version of MultEQ XT is very good, but the Pro version is just another dimension entirely. That, combined with DEQ (which is automatically enabled on the Pro upgrade) and the AS-EQ1 really has made my system the total package.

[Ed Mullen]

Sonnie wrote:

Sounds like a plan to me... since I have the Onkyo 876 with XT and DEQ...



Ed... To clarify - in a completely symmetrical dedicated HT room front to back, a pair of subs in the front of the room symmetrically placed... along with a pair of subs in the rear of the room symmetrically placed... would using one channel for front subs and the other channel for rear subs work out well with the EQ1? Thanks!

Yes absolutely. In fact our extensive testing indicates one AS-EQ1 running four subwoofers in the manner you described (i.e., two symmetrical sets) is actually better than two AS-EQ1 units each running only two subwoofers. The reason why is the adaptive correction algorithms for multiple seating locations - the more information you feed the AS-EQ1, the better it gets at correcting the entire listening area. So you definitely want one AS-EQ1 to be aware of the presence and sonic fingerprint of all four subs in the room, even if they are technically being treated as dual discrete subs by the AS-EQ1.

[Ed Mullen]

JimP wrote:

Ed,

I've been thinking about this units capability of corrections in the time domain. I understand that these corrections are independent of phase corrections due to adjustments in the subwoofer distance. My question is are these time corrections the same as eliminating long decay times and is it a seperate process or only a consequence of reduction of peaks in frequency response?

Any reduction in a room peak will result in a shorter ring time.

The real time domain advantage of the AS-EQ1 lies in the FIR filter technology, as opposed to the IIR filters found in conventional PEQs. An IIR filter with a high Q value (i.e., a narrow bandwidth) will ring at its center frequency, causing phase distortions in the time domain.

FIR filters (as used in the AS-EQ1), while requiring far more computational power than IIR filters, do not have a Q value and have a linear phase response because they have only zeros in the z-plane, whereas an IIR filter has both zeros and poles in the z-plane, and will invariably exhibit non-linear phase distortions.

The difference is real and it's audible - the AS-EQ1 provides coherent and phase-correct bass without the time domain smearing/ringing caused by less capable filter technologies. In fact it's one of the primary reasons many enthusiasts are unhappy with the results obtained with conventional PEQs; a relatively flat response can be forced, but at the expense of significant phase distortions in the time domain. This time smearing is fatiguing and doesn't sound "quite right" - many enthusiasts can't quite put their finger on it to describe what is wrong with the bass quality, but they immediately know it when they hear the difference compared to the AS-EQ1.

All of my conventional PEQs (and I have four) have been gathering dust in my office since I started work on the SubEQ project 2 years ago.

[Sonnie]

This is one hot product... Kudos to SVSound

I can't wait to get mine in and give her a go.

[pietsch288]

I might as well give er a try also.....with 45 day trial I cant go wrong!!!! Any kind of return customer discount??????