Sony HT-A9 with Bass Module vs Sony BRAVIA Theater Quad with Bass Module

The Sony BRAVIA Theater Quad with Bass Module is the successor to the Sony HT-A9 with Bass Module. The most immediate difference is in the design of the discrete speakers. The previous generation's were cylindrical and bulky, while the newer model opts for a sleek, rectangular design with dual-function mounts/stands. The Bass Module (subwoofer) remains the same. While there are similarities in performance and features, there are some trade-offs, too. The Theater Quad has a better default frequency response and a better stereo dynamics performance, which is a great fit for movies. That said, pushing the volume too high can result in the speaker's malfunctioning. While both systems feature HDMI 2.1 compatibility, with 4k passthrough @ 120Hz, the Theater Quad's latency performance isn't the best and might require some tweaking of the AV Sync feature. For this reason, the HT-A9 has the edge if you plan on using your setup for gaming.