Specifications

Community R6-51 & R6-BASSHORN Installation / Operation Manual — Page 11
POWER AMPLIFICATION
POWER RATING
Power handling of the Low Frequency section of the R6-51BIAMP and the R-6 BASSHORN is rated at 1200
Watts continuous and 3000 Watts program. An amplifier that is capable of providing a continuous output of 2500
Watts to 3000 Watts into a 4 ohm load is recommended. It is better to oversize the amplifier than to undersize it.
The Mid/High Frequency section of the R6-51BIAMP is rated at 450 Watts continuous and 1100 Watts program.
An amplifier that is capable of providing a continuous output of 900 Watts to 1400 Watts into an 8 ohm load is
recommended. Here again, it is better to oversize the amplifier than to undersize it.
PROTECTIVE LIMITING
We recommend the use of a high quality signal limiter to help prevent loudspeaker damage due to sudden tran-
sients (dropped microphones, etc.) and/or damage from amplifier clipping. The limiter should be connected as
the last device in the signal chain before the power amplifier. Alternately, most modern DSP based loudspeaker
processors (also called loudspeaker controllers or loudspeaker management systems) have built-in dynamic
capabilities that can provide the recommended limiting functionality.
The limiter should be set to a limiting ratio of 20:1 (or greater), thereby providing near ‘brick-wall’ protection
against amplifier clipping. The limiter should also restrict output voltages to a maximum of 69VRMS for the
R6-BASSHORN and the low frequency section of the R6-51BIAMP full-range. The Mid/High section of the
R6-51BIAMP should be restricted to a maximum of 60VRMS.
AMPLIFIERS WITH BUILT-IN LIMITING
Power amplifier manufacturers have introduced amplifiers with built-in limiting. These limiters are usually de-
signed to prevent the amplifier from clipping. This type of limiting is acceptable to use in lieu of a stand-alone
limiter because it is easy to set-up, is specifically designed for the amplifier, and in most cases is tamper-proof.
This assumes that the amplifier output is sized as recommended in “Power Amplification” that begins on
page 10.
CONNECTING THE LOUDSPEAKER
The R-6 BASSHORN has a 12 ft (3.6m) 16-2 SJOW-type neoprene jacketed cable attached to its enclosure with
a weather-tight gland-nut. R6-51BIAMP has two of these same cables, one for its low frequency section and one
for its mid/high-frequency section. In both products these ‘pigtails’ (as they’re sometimes called), are for connec-
tion to the amplifier(s). This cable may be connected to the amplifier’s speaker cabling using solder, a terminal
block, crimped connections, or wire-nuts.
Make sure to provide the connections with a weather-resistant treatment if used outdoors. This can take the form
of a weatherproof junction box (recommended) or a coating of a dielectric compound such as “CRC Dielectric
Grease” or a similar product. In all cases, do not
remove the gland nut that attaches the cable to the lower rear
of the loudspeaker, as this will compromise the weather integrity of the enclosure.