Hi Harry I wanted to touch on something you said earlier.
I have the exact same objective in my room 2 Harry, meaning just filling in the bottom octave. I have My Quad 57’s running full off the Music Reference amp. Positioned in the room as they are in the system pic, they are good to about 55hz. I have two Dynaudio subs which kick in at 60hz. They receive a separate direct input from the preamp (happens to be an AI - no remote ! ) in that room.
Wanted to mention, more of a general comment from my experiences. I have spoken with a number of sub manufacturers over the years the earliest, many moons ago was Dr.Hsu, and the most recent Rythmik Audio, a little over a year ago about the use of one sub in a room. They have all told me the same thing and my own room setup in B prior to going to dual subs was one large one; my experiences confirm it as well.
For 2 channel music nearfield placement is best if crossing over low. The sub is positioned ....if and if the room, wife, boundaries permit it..... beside or behind your listening position. It may seem unorthodox but your sub will work at a fraction of the effort it needs when it is across the room. Just set the phase at 180. An easy way to determine if the phase is correct. Put on music with bass, put your hand on the nearfield sub - you can feel the sub pulse and determine if it is in sync with the bass you are hearing at your listening position with the main speakers bass. very obvious with this technique - if it is out of phase.
When I had one sub in that room, and had people over, I would camouflage the nearfield sub and have them tell me where the bass notes were coming from. They would point to some spot over behind the Quad speakers. They found it hilarious when I told them the notes were coming from the box that their glass was resting on, next to them.
Having brought in the Dynaudio subs I will say that anyone that is thinking of using two subs across a good sized room - I would for myself insist in making sure the sub design comes with a remote for the different controls especially Db gain. Music even within the same genres is mastered at varying gain levels of bass. The subs I use have 4 presets that can be used.
Cheers Chris
My sub is crossed over at about 45 - 50 hz, but I don’t run the mains through the sub crossover. I run them full range. Canalis says they are only 3 db down at 39 cycles. I keep the sub volume dialed down quite a bit. I’m not looking for boom, boom, just a nice foundation. The sub is a Sunfire True that has enormous power but is not quite as tight as I would prefer. Been thinking about a Rel, but that’s down the priority list. I did have to dial down the sub after my tweaks and once I got the VTA right.
I have the exact same objective in my room 2 Harry, meaning just filling in the bottom octave. I have My Quad 57’s running full off the Music Reference amp. Positioned in the room as they are in the system pic, they are good to about 55hz. I have two Dynaudio subs which kick in at 60hz. They receive a separate direct input from the preamp (happens to be an AI - no remote ! ) in that room.
Wanted to mention, more of a general comment from my experiences. I have spoken with a number of sub manufacturers over the years the earliest, many moons ago was Dr.Hsu, and the most recent Rythmik Audio, a little over a year ago about the use of one sub in a room. They have all told me the same thing and my own room setup in B prior to going to dual subs was one large one; my experiences confirm it as well.
For 2 channel music nearfield placement is best if crossing over low. The sub is positioned ....if and if the room, wife, boundaries permit it..... beside or behind your listening position. It may seem unorthodox but your sub will work at a fraction of the effort it needs when it is across the room. Just set the phase at 180. An easy way to determine if the phase is correct. Put on music with bass, put your hand on the nearfield sub - you can feel the sub pulse and determine if it is in sync with the bass you are hearing at your listening position with the main speakers bass. very obvious with this technique - if it is out of phase.
When I had one sub in that room, and had people over, I would camouflage the nearfield sub and have them tell me where the bass notes were coming from. They would point to some spot over behind the Quad speakers. They found it hilarious when I told them the notes were coming from the box that their glass was resting on, next to them.
Having brought in the Dynaudio subs I will say that anyone that is thinking of using two subs across a good sized room - I would for myself insist in making sure the sub design comes with a remote for the different controls especially Db gain. Music even within the same genres is mastered at varying gain levels of bass. The subs I use have 4 presets that can be used.
Cheers Chris