STF-2 vs. VTF-1

[Knighthammer]

Hello all,

I need to replace my old M&K sub that I've had for probably 15 years.

I'm looking at either the VTF-1 or the STF-2. My biggest limitation is price point, which is why I'm looking at those two specific models. What are the draw-backs/benifits of each.

Any help or suggestions would be greatly appreciated.

[Pete_Hsu]

Hi Knighthammer,

The most notable difference between these two models is that the VTF-1 has variable tuning capability, so that one can choose their tradeoff of max output or max extension. Also, the magnet on the woofer the VTF-1 is a bit stronger, and the frequency response is just a bit flatter. Finally, the finish is nicer on the VTF-1 (it uses a non-vinyl Satin Black finish with a "seamless" enclosure design). On the other hand, the STF-2 is a very cost-effective alternative, particularly if one doesn't feel the need to have a nicer finish and variable tuning capability.

Sincerely,

[Knighthammer]

Thank you for the information Pete - it'll be a tough call.

I'm used to a sealed enclosure, but my primary use is for H/T with maybe 5-10% music listening. I suppose the tuning characteristics of the VTF-1 might be the better option.

Tax refund needs to roll around faster =)

[Matt_Smi]

I would go with the VTF-1, that’s one hell of a sub for $400! Pete laid out the differences but as a Previous STF-2 owner and a current VTF-3 MK3 owner I can saw I love the flexibility of being able to switch my sub from Max Output Mode (25 Hz, but more like 22 in my room) to Max Extension mode for an incredibly low 18 Hz Frequency response and trust me when HSU rates their subs if they say it will hit 18 Hz +/-1 1 dB they mean it! I have graphed me subs response and it is scary accurate and extremely flat. My room boosts 28-30 Hz by about 2.5 Db (no complaints there!) then the sub is amazingly flat within .1 Db from 36 Hz to 50 Hz in Max Output mode! That to me is just outstanding!

I never put much faith under these charts until I did it for myself and my method was not even very scientific, see this post for more info on what I did and an attachment of my chart. http://forum.hsuresearch.com/showthread.php?t=14846 I have also graphed my sub in Max Extension mode and the results blew me away as well, it didn’t play quite as loud but just as rated it dug right down into 18 Hz and only did it 3 Db lower than it played 25 Hz, again amazing, the sub will even play 16 Hz loudly, not extremity loud but I can easily hit 83 Db without even straining the sub, which actually that is pretty damn loud for such a low frequency!

Anyway enough about the VTF-3, point is that the VTF-1 may not play as loud or as deep but you will still get extremely flat response out of it as well as solid 25 Hz bass extension. Besides the ability to change the tuning mode in the VTF-1 it is 12 Lbs heavier than the STF-2 although the cabinet size is identical, which means it either uses a beefier driver with a heavier magnet as Pete said and/or the cabinet has a bit more internal bracing to added to it, both good things. With either sub I am sure you will be happy so if you really have to save the cash then go for the STF-2 but otherwise I would say get the VTF-1.


Matt

[Ddavidson]

Save for a little longer and get the VTF-1. The finish alone is worth the price, however the flexibility of deep bass/max output tuning is just icing on the cake for the extra $$$.

Ddavidson