Speaker User Manual

SR2 Owners Manual Rev 0.2
7
Diffusion generally is a good thing and excellent listening rooms
typically have diffusion in abundance. Great sounding rooms are
either large enough or absorptive enough to discourage strong
standing waves in the listening area. Good sounding rooms that
present a proper spatial image tend to be very symmetrical in
layout, left to right.
Under these idyllic room conditions speaker placement is frequently
a simple task. In an idyllic world the speakers would be well out in
the room, typically about 1/3 the distance of the rooms front to back
dimension. The listener would be at mid point in the room or
slightly to the rear of mid-point. The listener and the speakers
would form an equilateral triangle, such that the distance speaker to
speaker would be identical to the distance from either speaker to
listener. The distance from speaker to sidewall would be unequal
to the distance from the speaker to the back wall. To solidify the
acoustic image placement in stereo or multi-channel recordings at
the listening position the speakers will typically be toed in slightly
toward the listening position, rather than square with the rear and
sidewalls. The tweeter height of the speaker will be either at the
same height as the listener’s ear or in some way angled as to
achieve an equivalent result. The SR-2 cabinets have adjustable
feet, front and rear to optimize apparent driver height.
Lucky are the very few listeners who have well placed equipment in
a well-engineered dedicated listening space either by design or
happenstance. For the rest of us we have the Pass Laboratories
SR-2. The Pass Laboratories SR-2 Loudspeaker was built to
address less than perfect rooms and less than perfect speaker
placement.