Revel C30 - Manual (Page 19)

SPECIFICATIONS
Revel utilizes proprietary measurement methods in the design and
specification of our loudspeakers. Our research has developed a
series of tests that represent a great leap forward in making mea-
surements that dramatically contribute to our goal of accurately
reproducing music or film.
Sensitivity: 90.5 dB SPL, with 2.83 Vrms @ 1 m
(4 pi anechoic)
Sensitivity provides an indication of how much amplifier power is required
for the loudspeaker to play at satisfactory volume levels. This conservatively-
rated specification indicates moderate sensitivity and denotes that the
REVEL PERFORMA C30 loudspeaker does not require huge amplifiers
to achieve realistic levels in all but the largest rooms.
Impedance: 6 ohms (nominal), 3 ohms (minimum)
@ 115 Hz
Impedance indicates whether the speaker system presents a “hard” or
“easy” load on the amplifier. A minimum impedance value of 3 ohms,
together with moderate phase angles, signifies that any competently-
designed amplifier can easily drive the REVEL PERFORMA C30
loudspeaker.
Filters (Crossover): 3-way, high-order at 280Hz and 2.5 kHz
The steep filter slopes ensure good acoustical behavior in the
crossover regions, with a minimum of acoustical interference, along
with low distortion and wide dynamic range. The filters feature
specially selected components. Woofer and tweeter filter boards are
physically independent.
Frequency Responses: In-Room Response;
±1.0 dB from 80 Hz to 16 kHz
In-room response is a breakthrough measurement that, in a single
curve, closely correlates to sound quality and has been a goal of loud-
speaker engineers for years. Research, and simple observation, reveals
that ubiquitous “on-axis” response curves often cannot distinguish
between two loudspeakers with radically different sound quality. This
REVEL PERFORMA C30 loudspeaker specification is even more
powerful when it is taken in context with the other measurements
presented here.
In-Room Response Relative to Target Response;
±0.75 dB from 90 Hz to 18 kHz
A target response is the ideal response goal and is not flat at the fre-
quency extremes and is used when the ideal reference is not a “flat”
line. A target response must be tailored to the loudspeaker’s intended
application and takes into account the acoustic impact of the loud-
speaker’s location, such as freestanding, or placement near a wall.
First-Reflections Response;
±1.0 dB from 75 Hz to 15 kHz
First reflection response is a measure of the response a listener
hears that is contributed by the first reflections from the walls,
floor, and ceiling. This superb specification indicates that REVEL
PERFORMA C30 loudspeaker will remain accurate, even in the
presence of strong reflections.
REVEL PERFORMA C30
Owner’s Manual
19