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Author Topic: Lightweight active 12Ē subs. FBT Subline 112sa vs RCF 702asII or other?  (Read 5216 times)

Richard Penrose

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Hi,

Iím interested in getting some lightweight active 12Ē subs and the FBT Subline 112sa and RCF702asII are top of my list under £800.
The RCF has a max spl of 129dB and the FBT goes to 133dB but I donít know how this was measured.

Has anyone heard both of these subs?
If there anything else you could recommend around this price that weighs around 22kg or less?
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Caleb Dueck

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Hi,

Iím interested in getting some lightweight active 12Ē subs and the FBT Subline 112sa and RCF702asII are top of my list under £800.
The RCF has a max spl of 129dB and the FBT goes to 133dB but I donít know how this was measured.

Has anyone heard both of these subs?
If there anything else you could recommend around this price that weighs around 22kg or less?

What drivers do they use?

Max SPL numbers are pretty much meaningless.

What do the frequency response graphs look like?  Sometimes you get more bass from the main speakers than a baby "subwoofer". 

Why a 12" driver?  Driver diameter doesn't equal performance level.
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Richard Penrose

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What drivers do they use?

Max SPL numbers are pretty much meaningless.

What do the frequency response graphs look like?  Sometimes you get more bass from the main speakers than a baby "subwoofer". 

Why a 12" driver?  Driver diameter doesn't equal performance level.

Hi,

Iím not sure what the models of the drivers are in these.

I specified a 12Ē because of size and weight. Iíve been using a pair of QSC KW181ís with a pair of Yamaha DXR15ís but I donít really need a pa this size anymore as Iím mostly doing acoustic gigs.
I just use the DXR15ís by themselves these days and Iíve been able to put a little kick and bass through them. Iíve even run a fully miked kit through them on a few occasions and the DXR15ís did a surprisingly good job.

I was considering getting a small system like the FBT VN2000 or a pair of RCF HD10ís over the 702asII subs as I would expect this to outperform a single pair of DXR15ís whilst keeping the weight and size down?
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Rob Bernstein

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Hi,

Iím interested in getting some lightweight active 12Ē subs and the FBT Subline 112sa and RCF702asII are top of my list under £800.
The RCF has a max spl of 129dB and the FBT goes to 133dB but I donít know how this was measured.

Has anyone heard both of these subs?
If there anything else you could recommend around this price that weighs around 22kg or less?
I bought a pair of SUB 702-AS II last year to use with the wedding band I run sound for. Have been using SUB-905AS MKII and very happy with them, but in some venues they are overkill and we don't have the space for both of them. I've been very impressed with the 702's, and while they certainly don't thump like the 905's, they are so small and so light that I can overlook the lack of whack. Granted, I'm doing mostly weddings, and this isn't a concert. But for smaller rooms they are awesome. I'm running a pair of EAW RS123's on top and the rig can get fairly loud.
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Mal Brown

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Nice looking rig.   I personally would have my tops on tripods and use scrim for the wedding look.     Those tops look a bit large to be supported by such a small base.  I've done some high wind events where that would scare me... not to mention the occasional drunk-fest (um, enthusiastic drinking) wedding...
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Rob Bernstein

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Nice looking rig.   I personally would have my tops on tripods and use scrim for the wedding look.     Those tops look a bit large to be supported by such a small base.  I've done some high wind events where that would scare me... not to mention the occasional drunk-fest (um, enthusiastic drinking) wedding...
I understand the scrim comment, but I hate those things.
As long as the person paying me (band leader) is okay without them, I certainly am.
The tops are surprisingly light and the whole shebang is pretty stable. I do keep my eyes peeled for drunken Uncles and such and shoo them away as much as possible.
We are never outside, always in a tent or indoors. That's in the contract.
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Richard Penrose

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I bought a pair of SUB 702-AS II last year to use with the wedding band I run sound for. Have been using SUB-905AS MKII and very happy with them, but in some venues they are overkill and we don't have the space for both of them. I've been very impressed with the 702's, and while they certainly don't thump like the 905's, they are so small and so light that I can overlook the lack of whack. Granted, I'm doing mostly weddings, and this isn't a concert. But for smaller rooms they are awesome. I'm running a pair of EAW RS123's on top and the rig can get fairly loud.

Thanks for sharing this  :)

I noticed that RCF released a new 9-Series plus NX-9 series and have updated their D-Line series and am now wondering if RCF will also be updating their Sub series soon? It would make sense for them to update the Sub range with the improved amp modules dsp and drivers along with the new RCF logo. I'm going to wait to see if there will be a new improved 12" sub.
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Scott Holtzman

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Nice looking rig.   I personally would have my tops on tripods and use scrim for the wedding look.     Those tops look a bit large to be supported by such a small base.  I've done some high wind events where that would scare me... not to mention the occasional drunk-fest (um, enthusiastic drinking) wedding...


It's a nice looking band, that's a key point that makes a great wedding band.  Moving that cover from blocking the uplight would have been nice. 
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Scott AKA "Skyking" Holtzman

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Richard Penrose

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Hi guys,

As a quick update, I sold my QSC KW181ís as I havenít been using these anymore. For any bigger events Iíve just been using my DXR15ís by themselves which have been fine.
Last night I did an event and one of my got to hear/use the RCF HD10mkVís over a pair of 702as mkII subs. First, what surprised me was how small and light the subs were. Secondly, I was also very surprised at how well the performed. There was a full band, drums, bass, keys, guitar, bass and vocals and everything went through foh. The drums were fully miked and there were no amps/stage monitors. The bass went through a sansamp into the pa,  the guitar went through a modelling pedal and everyone used IEMís. Whilst I didnít have the system turned fully up I was very surprised at how good this system sounded.
I notice RCF have released mk3 versions of the 702as and 905as subs. The newer 702mk3 is a little bigger and 3kg heavier whilst the mk3 version of the 905as weighs around 4kg less than its mk2 counterpart. Both mk3 versions of these RCF subs have their Bass Motion Control but Iím not sure how much difference this makes to the overall performance?

I am hoping to borrow the HD10amkV / 702as mk2 system and give it a good try out next to my DXR15ís to hear how they compare. Iím also interested to know how the mk3 version compares. If this little RCF system at least matches the audio quality and output of my DXR15ís, I could see myself making the change. The thought of taking such a small lightweight system to venues instead of my big and heavy DXR15ís is extremely appealing!
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Richard Penrose

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I tried the RCF HD10a + 702asII subs system in a couple of different venues this weekend. The first gig was an old church building running piano, Hammond, bass and multiple voices through the system. For this event, the system worked great. The bass player had a pretty high end 5 string bass and the tone sounded wonderful. The 702ís filled the venue with sound right to the very back and the keys and vocals had a great natural sound with great clarity.
The second gig was in a pretty dead sounding marquee. There was about 150 there and there was a fully miked band (drums, bass, guitar, keys, vocals) plus a dj running through the system. The system sounded good on the dance floor but the subs tailed off quite quickly when stood around 6-7 meters away. The clip light was coming on quite a lot. This is the first time I felt like I could have done with a little more. My old DXR15ís and QSC KW181ís would have completely filled the marquee with plenty to spare! However, the load in and out was so easy due to the size and weight of this system.
The new mk3 702 subs have a different limiting ĎBass Motioní circuit which doesnít roll off the lows like in the mk2ís which according to RCF allow for greater depth of bass and increased headroom at higher levels. How this translates into real performance is remains to be heard and Iím wondering if anyone can comment on this?
If there isnít any real difference in actual performance Iím thinking the 905as mk3 subs would be the next step up whilst keeping the weight down at 26kg?
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Re: Lightweight active 12Ē subs. FBT Subline 112sa vs RCF 702asII or other?
¬ę Reply #9 on: May 12, 2024, 03:36:17 AM ¬Ľ


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