Bass Gear Issue 7 : Page 67CAB LAB AudioKinesis TC112AF Bass Cabinet I have to admit, I was really chomping at the bit to start digging into the technical analysis of this little beauty. Okay, and I was also looking forward to playing through this cab, myself. Alan didn’t want to give up the TC112AF to let me do this, but who can blame him? This cab is light, powerful, and has a chameleon-like personality; but Alan has already told you all of this, so I’ll move onto the technical deets. The heart of the TC112AF is its custom Eminence Kappalite™ 3012LF. The stock 3012LF is available in 8-ohm configuration, only. In addition to the impedance change to 4 ohms, the proprietary �f;d;" d;e;& AudioKinesis 3012LF variant also has improved efficiency (as the expense of some low-end extension), and more top-end extension. This driver is held in place by eight bolts secured with T-nuts. Now that’s what I’m talking about! The round grill covers the driver only, and is clamped in place by four more bolts (also secured with T-nuts). The soul of the TC112 is the ASD-1001 1” titanium compression driver, paired up with the big Pyle Pro PH612 horn. This horn has a 90 degree by 40 degree coverage angle, and it occupies and imposing amount of real estate, at 6.4” high by 11.9” wide. Off-axis coverage was very impressive, all the way out to 45 degrees (see Fig. A ). The AF version is a bit more “soulful,” I suppose, what with an extra tweeter on the backside of the enclosure. The Galaxy Audio Neolite SNTR 1.5 actually has a larger voice coil (1.5”, versus 1”), handles more power (60 watts, versus 50), and goes deeper (down to 1kHz, versus 2.5kHz) than the primary Eminence high frequency driver. But it is handed a somewhat diminished role. The signal fed to the rear-firing tweeter is attenuated about 10dB down, relative to the signal going to the front tweeter. What’s the point, you ask? Well, this is the “acoustic friendly” version of the TC112, so we need look only to an acoustic instrument to find the inspiration. An acoustic instrument does not radiate sound in only one direction. Sound waves emanate from both the front and back of the body (the sides, as well, but in much smaller doses). This creates an audible effect that you can hear even when you are sitting in an adjoining room (relative to the instrument and player). By also radiating sound from the back, as well Fig A -On and Off Axis (15, 30, 45) Frequency Response Fig B -On Axis Frequency Response with 0, 1, and 2 ports blocked Publication List Using a screen reader? Click Here |
