Paradigm PBK,Perfect Bass Kit!

Brand new PBK in the box and never opened.

Even when your Paradigm subwoofer is ideally placed, the room can
still have a dramatic impact on bass performance. Room dimensions, dead
spots, archways, and even furniture placement can turn a room into an
additional instrument, playing alongside musicians or movie scores with
unwanted contributions of coloration and resonance. Bass can sound
bloated or boomy, with poor definition.

Paradigm’s Perfect Bass Kit is the answer …

PBK is unlike anything previously available: With the Paradigm
Perfect Bass Kit, the negative effects of room boundaries on sound
quality are a thing of the past. This state-of-the-art “bass perfecting”
system analyzes the subwoofer’s response in your room, then sets the
correct equalization parameters to attain optimal sound. The frequency
response of each PBK microphone is measured precisely and the data is
used to create the microphone’s calibration file included on the PBK
software disk.

PBK applies Super-Efficient Infinite Impulse Response (IIR) Filters in addition to Custom Filter Topology:
This minimizes delay and reduces processing gain noise. The combined
approach of limiting the width of IIR filters and applying custom
topology means that any artifacts that might have resulted from the
filtering process are so small as to be completely inaudible.

PBK allows for Multiple Microphone Measurements: Most room
equalization methods work from a single point source, taking one
measurement at the primary listening position. PBK however, provides for
multiple user-selected measurement points (we suggest a minimum of
five, but up to ten positions can be measured).

Unlike many “Room EQ” systems, PBK applies Correction to Peaks (modes) and Dips (anti-modes):
Tackling both allows us to achieve a far more accurate and natural room
response. And to limit the demands on the amplifier as well as maximize
signal-to-noise ratio, PBK applies appropriate limits to this
correction.

PBK is Ultra-Accurate: The connected PC’s 64-bit
floating-point processor does the hard work of calculating the
correction curves, which greatly minimizes the rounding errors of a less
sophisticated “calculator”.

It’s Easy-to-Use (at least your part is!): Three years of
intensive research and development on our part have made it a snap to
attain “Perfect Bass” performance in any room! All that’s required is a
PC running Windows 10, Windows 8, Windows 7, Windows Vista or Windows XP
(with Service Pack 2 or 3), two USB ports and the Paradigm Perfect Bass
Kit. Paradigm even includes the two USB cables you’ll need: one for the
PBK microphone and one for the subwoofer.

How Does It Work?

Paradigm’s Perfect Bass Kit (PBK) is a derivative of the critically
acclaimed Anthem® Room Correction (ARC) system, based on research
conducted by the National Research Council (NRC). The NRC’s goal was to
identify the correct “in-room” target response for a loudspeaker (in
this case, the subwoofer) and then develop a way to achieve that same
response in any listening room. Using proprietary processing, PBK
measures your subwoofer’s frequency response and then computes the
target response to yield optimal bass performance in your room. Each PBK
can be used with up to four Paradigm Reference subwoofers.

How Does PBK Do What it Does?

The process begins when your computer signals the subwoofer to play
the test signal, which is then picked up by the individually calibrated
micro-phone. The system puts the subwoofer through a frequency sweep to
highlight problem areas and determine necessary adjustments. It asks you
to position the microphone in at least five different locations.
Configurations are then saved on the connected PC. The optimized
solutions are calculated, then uploaded to the subwoofer and the
calculated room corrections are put in place. An audiophile solution to
the problem of “the room”!