| The first thing you notice is the front baffle, angled inward
at a 45-degree angle. The Rhythm Prism might be the world’s first 11-inch wide speaker
that sports a 12" woofer on the front baffle.
The Rhythm Prisms have the following unusual features which make them especially adaptable
to a very wide range of rooms:
- Radiation Pattern Control
- Room Adaptable
- Adjustable Treble
- Dynamic Contrast
Radiation Pattern Control
Excellent radiation pattern control, especially considering the width of the
footprint. The combination of toe-in and pattern control minimize undesirable
very early reflections in a small room and generates a spectrally-correct
reverberant field, which is fairly rare outside of a live performance.
Room Adaptable
Placement close to a wall, and even in a corner, is feasible thanks to
the highly adjustable bass tuning system. Two adjustable-length ports are
on the rear panel, one near the top and one near the bottom. Embracing the
principle of spreading out the low frequency sources in the room as much as
is practical for the sake of smoothness, you can seal the lower port on one
speaker and the upper port on the other, resulting in significant staggering
of your bass sources from the two speakers in all three dimensions. In a
large room where you get less boundary reinforcement, leave both ports open.
Adjustable Treble
On the rear of the speaker is a single external resistor in a terminal cup,
and this resistor acts as a high-quality tilt control for the compression
driver. Thus the treble balance can be optimized for room acoustics.
Dynamic Contrast
The drivers are high quality prosound units that have negligible thermal
or mechanical compression in normal home use. This preserves dynamic contrast,
which musicians use to convey emotion. Combined with the exceptional radiation
pattern control (and a well-engineered crossover), the net result is an
outstanding approximation of the timbre, emotion, and overall feeling of a
live performance for a 2.5 grand speaker.
Specifications:
| Type: |
Two-way controlled-pattern toed-in floor-standing adjustable-tuning bass reflex system |
| Woofer: |
12" prosound neodymium magnet |
| Tweeter: |
1" compression driver, neodymium magnet, polymar
diaphragm |
| Waveguide: |
90 degrees constant in the horizontal plane, from about 1.4 kHz up |
| Crossover: |
1.4 kHz |
| Impedance: |
8 ohms nominal, 7 ohms minimum, smooth and very tube-amp-friendly |
| Efficiency: |
93 dB at 1 watt at 1 meter calculated, based on the Thiele/Small parameters |
| Typical System Bandwidth: |
small room, one port, in the corner: 27 Hz to 18 kHz
medium room, both ports short: 42 Hz to 18 kHz
small room, both ports long: 35 Hz - 18 kHz |
| Power Compression: |
Less than 1 dB of compression at up to 110 dB/1 meter SPL |
| Recommended Amplifier Power: |
5-500 watts (unclipped peaks up to 900 watts acceptable) |
| Dimensions: |
44" high by 11" wide by 20" deep |
| Weight: |
85 pounds |
| Pricing: |
$2500 a pair, direct sales only |
Manufactured by:
- AudioKinesis
- Preston, Idaho
- 1.208.852.2610
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