My take on your situation is :
TC50s are great .. I have Spica Angelus and the mids/imaging are to die for. Bass is also lean on the Angelus, which is peculiar for such a huge speaker.
I thought about tone controls. Old Quad amps have a cool bass control called tilt and lift (I think). It worked wonders on a friend's LS3/5 (which have similar bass to the Spica Tc50s). So you COULD try an old Quad pre/power combo ... probably cost about $500 used. I wouldn't do this, though.
However in the end I have to agree with danvect ... a small cabinet will only do so much. I'd add to this that to force the Tc-50 to make huge woofer excursions so you can shake your neighbour's house with organ music is probably going to either damage the tc50s or destroy their mid range (which the same drivers are trying to produce).
In the end I bought a subwoofer. A REL. Coupled with the Spicas it sounds amazing. Dynamics, grunt and detail and imaging. Plus it's more versatile .... sub is placed for best bass response and spicas are placed for imaging (well away from the walls, where thir bass response is at the least).
Don't mess with half-measures ... pony up the money for a quality sub and I think you'll be very pleased.
TC50s are great .. I have Spica Angelus and the mids/imaging are to die for. Bass is also lean on the Angelus, which is peculiar for such a huge speaker.
I thought about tone controls. Old Quad amps have a cool bass control called tilt and lift (I think). It worked wonders on a friend's LS3/5 (which have similar bass to the Spica Tc50s). So you COULD try an old Quad pre/power combo ... probably cost about $500 used. I wouldn't do this, though.
However in the end I have to agree with danvect ... a small cabinet will only do so much. I'd add to this that to force the Tc-50 to make huge woofer excursions so you can shake your neighbour's house with organ music is probably going to either damage the tc50s or destroy their mid range (which the same drivers are trying to produce).
In the end I bought a subwoofer. A REL. Coupled with the Spicas it sounds amazing. Dynamics, grunt and detail and imaging. Plus it's more versatile .... sub is placed for best bass response and spicas are placed for imaging (well away from the walls, where thir bass response is at the least).
Don't mess with half-measures ... pony up the money for a quality sub and I think you'll be very pleased.