Deleted member 910934
Hi Alex,I don’t know if I’m too late for you, but I use two BK Gemini IIs in a stereo only system and I think they are very good. They replaced a much larger ported Tannoy subwoofer that took many years of repositioning and adjusting to get it to blend. In contrast the BKs took minutes…
I use them with Naim/Arcam electronics and Tannoy or Piega Floorstanding speakers depending on what I fancy. The subwoofers are wired in stereo (line level) and positioned just behind the speakers to minimise phase issues - I have tried alternative positions but despite the idea that bass is supposed to be difficult to locate, positioning the subs away from the speakers to where bass output was greatest also seemed ’dislocate’ the sound image - at least to my ears so I prefer them next to the speakers - remember this is a 100% music only system - HT applications may work best with bass spread around the sound field.
I like the Geminis because of how they sound, but also because of how easy they are to set up and the digital display on the amplifier really helps with this - the crossover can be set accurately to every 3hz or so. To my ears the 10inch driver seems plenty quick enough and the 150 watt amp, for music use, has sufficient power - the display has VU metres via LEDs and they rarely flash at all - the lowest of the indicators is 30 watts. One caveat is that for HT use I also use another Gemini II in another system and when watching films such as Tron Legacy, the VU metres really do light up! The stereo only BKs are used in a room 6.5 X 3.5 metres.
I know they are different beasts but music use I prefer my smaller sealed dual BKs to the single ported 15inch Tannoy I had before. Much less boomy and easier to integrate. In fact I am contemplating adding two more and stacking them as per the REL 4 pack/6pack systems - the advantage of this approach is I could set individual gain/crossover/phase for each unit in the stack (can’t do that with the Double Gem - 1 amp for 2 drivers) and I could even fire the top unit upwards, giving an extra height dimension to the bass output. This would have the added benefit of evening-out the bass response on the vertical plane.
Thanks for the reply. No, its not too late at all. I am still considering getting 2 BK Gemini II subwoofers, but have put it on hold while I work out another issue. You post is very interesting, as some people have suggested running 2 subs requires DSP. Other sources suggest that integrating a subwoofer with other speakers well, without DSP, is difficult, even impossible. My own intuition was to use to small sealed subs and place them near the speakers, one on each side, to act as a sort-of "extra driver", crossed over at the point where the bass of the main speakers start to nose dive and matching the volume as best as I can by ear. Having nearly given up on this idea, thinking it impossible, your post makes me consider giving it a go. So, thank you...