Real Traps makes traps with industry standard 703 ridgid fiberglass. This fiberglass is way more effective than conventional studio foam. The fiberglass has better frequency range and is better at obsorbing than foam is. Initially, when we started to make our traps, we contacted Real Traps to get their thoughts on why they stopped using wood for their frames. They told us it was more of a cost thing, becuase they make their plastic frames in house. We make ours out of wood, becuase our clients like to have the option of getting them painted or stained to match their studio. We have seen no difference in frequency pickup, contrary to what they posted on their site. They use roughly 3" of fiberglass, we use 4". The more you use, the better the frequency range. They also don't use the better fiberglass for their bass traps. They use 703 fiberglass in all of their panels. To get the best frequency response, 705 needs to be used in bass traps. 705 is much denser. Their panels are around 180.00 each. Ours are priced cheaper, especially when ordering in bulk (6 or more panels).
Either way, they make great panels. Their plastic housing is also a cool alternitive to wood.