... the advice was to get the entry level up a wrung vs top of the range lower wrung. The T/5i is a quality product. Battery Life. Just hoping some members may be able to give feedback on longer term ownership. The purchase and delivery was without issue. the bell curve response of the REL T5 is now replaced with ruler flat response of the T5i! Added one REL T/5i to my hi-res stereo system. therefore, if your speakers are -3db at 45hz, you will get a quite serious bump at from 40hz to 80hz, making the sub imo useless the FR is literally flat where the REL T5 was a bell curve. The T7i has a superior battery and can take around 600 shots: a difference of 160 photos. T5i roll off without any issue and if I put the xo setting in middle point, I get exactly -6db at 80hz and -10db at 100hz! REL has made it work well in this product. Experience home theater and music as the artist intended with the most award winning high-end subwoofer brand, REL Acoustics. +1 for the T7i. yes, my mesurements of the REl t5 and rel t5i made clear that at the lowest setting (30hz) on the knob, the rel t5or t5i only starts to roll off around 55hz. Measurements wise, the REL T5i do not measure like the REL T5. So seeing as though Rel are famous as Audiophile music subs and pretty much prefer users to use speaker level connection it is the brand I instantly thought of. The T7i enriches modest systems with deliciously sumptuous natural bass, high quality construction, and gorgeous finishes. The T5i and T6i miss out on this feature. Nicely compact â yet good and bassy, too The T-7 is essentially a 30cm cube, but the combination of 20cm downward-firing driver, a 200 watt class AB amplifier and forward-facing passive unit means the sub can â¦ It improves the overall listening experience. Both the T5i and T6i can take around 440 shots on a single charge. Features high quality long throw drivers and powerful, reliable amplifiers. Also purchased the Arrow wireless transmitter; it allowed location flexibility. The T7i incorporates video stabilization technology that helps eliminate distortion when recording video.