A proprietary Sony feature that boosts lower frequencies at lower volume levels to maintain a rich sound profile .
The Sony LBT-V702 is a vintage mid-sized Hi-Fi component system, part of Sony's "Liberty" series from the early 1990s . It typically features a modular design consisting of a tuner, amplifier, dual cassette deck, and CD player . System Components The standard LBT-V702 stack includes these specific units: