Mike- First off congrats on the GT28 it is a very awesome amp. Secondly, to answer your question, I would run it 2 ohms stereo..... Now, Because it is a stereo amp, the actual effects on the amp at either 4 ohm mono or 2 ohm stereo are the same.....Because a stereo amp when bridged will halve the said impedance between the two channels. So your 4 ohm mono load will be seen by each channel as a 2 ohm load. The advantage of wiring it in stereo will be some small stereo separation but mostly ease of wiring. Next, the Boston amps are actually designed to run at 2 ohms mono and 1 ohm stereo. That's right...They are designed to run at those low impedances. So don't be afraid to load it down a bit for a ton of output. Now lets talk about the Q-Tune and crossover adjustment on the amp. The crossover silk screen is off a bit on the side of the amp so tune it buy ear and not the label. Once you have the crossover dialed in, you can set the Q-Tune. Q-Tune controls a bass boost that accurse from the chosen crossover point and up about a half octave. This is great on tower speakers to help boost the mid bass and make them sound larger and fuller. So start with the control counter clockwise and increase the boost until you get the midbass you desire. I am the Nor Cal rep for Boston Acoustics and would be willing to answer any of your amp questions....You can PM me. Good Luck Scott
|