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Epik Conquest Subwoofer
A Secrets Subwoofer Review
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Written by Kevin Lichterman   
Tuesday, 04 March 2008
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Test Setup

Since I live within driving distance of the Epik factory, Chad and his father were kind enough to deliver the speaker directly to me.  Without many options to move it once the Conquest was in place (you’ll see why below), I had them place it in my basement theater. 

This room had the Infinity Beta setup as seen here in Colin Miller's review (sans the subs), a Yamaha DSP-A1 working as a preamp, and an Adcom GFA 555 Mark II providing amplification.  I used this setup for most of the testing, although I did throw a pair of B&W bookshelves (CDM-1NT) in for some of the 2.1 channel testing.

While I twiddled with the Conquest's crossover, for the testing I used the 80 Hz low pass output provided by the Yamaha to drive the Conquest. The Conquest itself was placed roughly 1/3 of the way down the main wall, well out of the corner (it did not need any kind of corner reinforcement).

Subjective Performance

My initial reaction to the Conquest Subwoofer was “Wow, so that’s what real bass is!"  In this I was far from alone.  Anecdotally, a friend of mine with a fairly high-end system (mainly B&W 801 speakers driven and controlled by Bryston components) was forced to search for an upgrade to his own system after listening to the Conquest in mine. There’ll be more on this story later.

Home Theater – 5.1

When a bomb goes off in a movie and a picture jumps on the wall, you know you are in for something special with a subwoofer like this.  Early on in my audition, I watched a CSI New York episode and jumped out of my seat when there was a lab explosion.   Definitely not my normal reaction!

Since the Conquest was truly a step up performance wise from what I was used to, I found myself revisiting many of the clips and movies I had previously viewed to see how big the difference was with the Conquest.

First I tried The Haunting from “dts Demonstration Disk #4” (a nice collection of Movie Clips from dts).   The scene in the clip is when the house comes to life and attacks.  On all my previous viewings, the sub in the system would always clip with the low frequency effects.  The Conquest handled it with aplomb.

Next, I next tried chapter 9 from The Incredibles.  Mr. Incredible’s first battles with the rolling Omnidriod literally shook the room.  

I’ve always felt that the plane crash from Tom Hank’s Cast Away was very realistic – well I assume it was realistic, at least it’s as close as I need to get.  Anyway, the Conquest simply increased my appreciation of this scene.  It crashed around just like the plane and honestly, reduced any of my immediate desires to become airborne.  

Since I’ve had the Conquest in my system for over three months and have viewed a few dozen movies, I could go on and on singing its praises.  The Conquest's performance never failed to impress.   But I’ve been reminded I’m not paid by the word.

Music 2.1

While I primarily focus on home theater, I did break out some tunes as well.  I first tried a couple of the typical house shaking genres - rap and pipe organs.  What, don’t you always listen to the two back to back?  For rap I tried LL Cool J’s “Going Back to Calli” of his Greatest Hits All World.   The impact of the bass line was as good as I’ve ever heard.  It was in the chest-pounding good fun.  Of course I couldn’t skip the pipe organ, so I gave a traditional standby a shot, Bach’s “Toccata and Fugue in D Minor”.  This particular version was from Sound Check from Mobile Fidelity Sound Lab.  I’ve always been impressed with the attention to details in their recordings.   Almost needless to say at this point, the lower notes of the organ were reproduced with an impact I’ve never heard before.  Heck on some systems these sounds are completely irreproducible.   

Finally, I listened to a little music that wasn’t so much focused on maximum impact, rather I tried to see how subtle this big boy could be - did it have the speed to blend well with mains?  Simply, I’d say yes.   Plucked bass guitars transitioned smoothly between my main towers and the Conquest.  For example, the bass was subtly but authoritatively reinforced in “She Makes Me Feel Good” by Lyle Lovett on his recording on the 1999 dts 5.1 Demo CD.  I know, 5.1 music in the 2.1 section - sacrilege!  This smooth blending of the sound between the mains and the sub held for both the Infinity Beta 50 tower speakers as well as the smaller B&W bookshelves.   This seems to indicate that the Conquest is flexible enough to work well in many systems.

Measured Performance

So did it measure as well as my glowing reviews would indicate – heck yeah!  Although measuring the performance of this darn thing was tough.  All I had on hand was my (usually) trusty Radio Shack SPL meter with its roughly 120 dB max range.  As always, I placed the meter close to the driver (roughly at the speaker grille) to reduce the room's influence.  In this position, the Conquest was easily able to exceed the maximum capability of the meter, so I’m not entirely sure what the upper limit of the sub is!   The measurements I did make are noted in the graph below. As you can see, the measured performance is between 122 and 127 dB between 10 and 80 Hz.  Pretty darn impressive!

epik-conquest-subwoofer-figure-5-graph.gif 

 

 

 

 

 

 

 

 

 

Conclusions

The Conquest is an eye opening subwoofer.  If you are looking for spectacular bass regardless of size, this is your sub.  The Conquest has few peers, and at $1,599 it really is a steal.  However, I give one caveat: this is a heck of a big box.   In a room, it’s the equivalent of adding a big screen TV – perhaps even the second.  If you have the space or can design a theater around the Conquest, look no further.  However, if you are short on space or are design and décor conscious, you may have to look for other options.   Epik itself offers many other choices.  Based on the pedigree and accomplishments of the Conquest, one of these may meet your needs.

Back to my anecdote from earlier, my friend did go out and purchase a subwoofer, two in fact – JL Fathoms F112 and F113.  Both he and I agree that the Conquest is the better performer on many levels except one, only the smaller Fathoms could get past his wife. In fact, most subwoofer manufacturers don't build large enclosure subwoofers for exactly this reason. The upside to the Conquest is its great big down low, and its downside is its great big upsize.

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Comments (18)add comment
This is not going to help...
written by BobMac , March 05, 2008

those who have been waiting for the subs to be built.

...
written by westcott , March 06, 2008

I would have suggested a more standard measurement distance so one can at least try to compare the performance of this subwoofer against others. Two meters would have been prefered. And since there are no distortion figures, your test data is pretty meaningless. Too bad. I am sure that it could have probably turned in some good numbers.

svs comparison
written by Jon , March 06, 2008

how does this compare tot he new svs ultra 13

...
written by JEJ , March 06, 2008

I imagine that eventually, we will have an Epik here for full bench tests, but it was just too heavy to ship for the first review.

radio shack spl meter
written by Mutha , March 06, 2008

The rs spl meter is VERY innaccurate at the frequency extremes unless highly modified and calibrated or unless you are using the rives disc made specifically for the rs spl meter. The sub's box is so so, the amp is so so, and the driver is so so.I'm a fan of larger subwoofers so it scores some points there. It does seem like a great value due to its output and extention.As to its outperforming the VASTLY more technologically advanced jl audio subs, only real distortion measurements can tell that tale. The jl's have better drivers,better enclosures more powerfull amplifiers,And built in room correction.unfortunately a price to match.

...
written by JEJ , March 06, 2008

Colin Miller will eventually finish his JL Audio subwoofer review so we will know how it performs, but only a side-by-side listening would be useful to compare the Epik and JL Audio. We can't bench test every product since we have so many writers and the test equipment is not in everyone's hands.

Measurements
written by Crosslinker , March 07, 2008

You can check measurements of this sub by Tom Nousaine and Craigsub (AVS Forum). Craigsub has done comparisons to JL F113 and found similar results to the one stated here but backed up by measurments.

Bring back Ed Mullen's type of review!
written by WS , March 07, 2008

You guys used to be highly reliable in terms of technical measurements with your review. While I recognize the difficulties in doing a full benchmark, basis, your cutting edge approach to measuring subs and DVD players is the reason I return to this site on a regular. Thanks,

...
written by Kevin Lichterman , March 07, 2008

While it may not be the most accurate, I used the Radio Shack SPL meter since it is readily available at a reasonable price. With the published frequency corrections, it is a reasonable tool for performance measurements. With this tool our readers can both duplicate my measurements and make their own for relative comparisons.

By measuring near the driver, versus at 2 meters, I was trying to eliminate the effect that the room had on my measurements. Again, my goal was to provide the reader an easy way to duplicate my own results.

Finally, I agree that the JL is a top notch sub with both great performance and great features. It’s most attractive feature being similar performance to the Conquest in a much smaller size (chock that up to the technology). Subjectively, in different rooms, the Conquest seemed to outperform the JL. I am trying to arrange to have both the JL and the Conquest for a side by side comparison. No promises, but I may be able to add the comparison to review down the road.


Comparison
written by Mutha , March 08, 2008

That would be an interesting comparison. As picky as I am about my audio I also live with a real world income, so gear that performs outside of it's price class always gets my attention.The tech differences I mentioned cover the full range of sub features. I've built subs and seen the insides of many more. From the pictures the subs build quality (all parts included) is a 6 (1-10 scale) at best.Like you mentioned the sub goes deep with no regard for saf. I could see a couple of these in a dedicated theater built into a false wall which would negate there asthetic disadvantages.Looking forward to a comparison with distortion and room response measurements.


Conquest measurement
written by chengbin , March 12, 2008

How close were you measuring the Conquest? Do you mind converting it to 2M? Thank you.

BTW, the JL sub that Secret is reviewing, what model is it?


conquest owner
written by cconklin1 , March 26, 2008

As an owner of one of these for the last several months, i can honestly say that I don't believe I will ever need another sub. The ONLY downside is it's size. This was not an issue for me and this beast has never failed to impress me.

Close Miking
written by sjaxkingpin , April 06, 2008

I agree with the author on this one. I would rather the test be close miked and know that with room gain, I'd get another 3-6db. Same with using the Rat Shack meter. If I know that this sub has xdb more output than the other 10 tested, and the reviewer is always using the Rat Shack meter, then it's fairly likely that sub is going to provide "me" with xdb more output.

Conquest size - too big for practicallity
written by Billybob , May 04, 2008

I agree with the criticisms here. First, it's too big, far too big. Even for dedicated h/t rooms, I'd go I/B before this. I do have an SVS PB-Ultra 13 though, and that is big, but in piano black and just 'small' enough to pass the WAF, it's more than good enough. Plus I believe the amp size is more in relation to the driver, and it's variable tuning and parametric equalizer just makes it that much better. Can it hit as low as the Conquest, probably not. Can it hit as hard and as loud - based on measurements I've read - YES it can. And IMO the sound quality of the Ultra is superiour (for music - though again, based on what I've read and heard with the SVS only compared to larger subs like Monsters Godfather).

I'm not saying the Conquest is bad - but it's one ugly mf and takes up far too much room. Underpowered as well.


are you kidding
written by nah! , May 07, 2008

you took a photo of the bracing and amp (amp not even designed by Epik) before the actual driver!

...
written by Jeff Marderosian , May 08, 2008

Billybob.. Huge load of crap. Making a comparison without ever hearing a Conquest and calling it underpowered based on 'what you've read', it ridiculous. Sounds like you have SVD buyers remorse.. The SVSs come up quite short comparatively.

Says you Jeff
written by Billybob , May 17, 2008

Sorry Jeff - but you need to take a look at Ikka's measurements. I didn't say the SVS was louder or deeper, I did say the 'quality' of the bass was better and I stand by that. As for having buyers remorse... why? I can't fit a Conquest in my room, it would look ridiculous and be too big for it. The SVS fits just nicely. And I have many more options for the SVS then I would the conquest, and the SVS is cheaper and better looking (Piano Black). Thanks for caring though!

the size is worth it
written by uggh , June 24, 2008

pb13 does not match the conquest in output, but conquest matches pb13 in sound quality.


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