Specifications - SWR Redhead Owner's Manual

• DO NOT connect a speaker load with a total
impedance below the minimum rating of your
amplifier to prevent damage to your equipment.
• DO NOT connect speaker(s) with a total power
handling capacity that is less than the power
output rating of your amplifier to prevent damage
to your equipment.
• ALWAYS switch your system power OFF before
connecting or disconnecting speakers.
• ONLY use unshielded speaker cable of 18 gauge or
heavier (16 or 14 gauge) for speaker connections.
Shielded instrument cable WILL NOT work and
may damage your equipment.
• ONLY connect one amplifier to each speaker load.
Two amplifiers connected to a single load WILL
NOT work and may damage your equipment.
Use the impedance and power ratings on
your amplifier and speakers to determine if a particular
combination of speakers is appropriate for your amplifier.
NOTE: All SWR® speaker enclosures, as well as most others,
will be connected in parallel (NOT series) when linked (daisy-
chained) together. Therefore, these guidelines apply only to
parallel speaker configurations.
TYPE:
PART NUMBERS:
POWER REQUIREMENT:
POWER AMP
MINIMUM IMPEDANCE:
PRE AMP
SENSITIVITY AT FULL POWER:
TONE CONTROLS
EFFECTS LOOP
TUBE DI LINE OUT
SPEAKERS
DIMENSIONS
WEIGHT:
10
Speaker Guidelines

Specifications

PR 759
4420100010 (120V, 60Hz)
4420103010 (240V, 50Hz) AUS
4420105010 (220V, 50Hz) ARG
4420107010 (100V, 50Hz) JPN
1440W
2Ω
POWER OUTPUT: 650W RMS into 2Ω @ < 0.1% THD, 1kHz
INPUT IMPEDANCE: Passive: 1MΩ
15mV
BASS:
±15dB @ 70Hz
MID:
±15dB @ frequency knob setting
TREBLE:
±15dB @ > 2kHz
SEND IMPEDANCE: 220Ω
RETURN IMPEDANCE: 10kΩ
IMPEDANCE: 600Ω
WOOFERS:
Two, 8Ω, 10'' Eminence (P/N 0074455000)
HORN:
One, 8Ω Foster® (P/N 0048847000)
HEIGHT: 23 in (58.42 cm)
WIDTH: 22.5 in (57.15 cm)
DEPTH: 16.75 in (42.55 cm)
95 lb (43 kg)
Product specifications are subject to change without notice.
◊
The speaker illustration (left) gives you the total
impedance load calculations for various speaker
impedance combinations (Ω=ohms). The ideal
speaker load (total impedance) is equal to the
minimum impedance rating of your amplifier.
Operating below the amp's minimum impedance
rating can overheat your amplifier and cause
damage. Operating above the amp's minimum
impedance rating, while safe, reduces the
amplifier's maximum power output.
Something else to consider: You can obtain
the same total impedance load from different
combinations of speaker impedances (see
illustration). If each speaker in a group has the
same impedance, each speaker will receive the same
amount of power from your amplifier. However, if
impedances are not all equal, the lowest impedance
speakers will get the most power. For example, if you
connect an 8Ω and a 16Ω speaker to an amp output of
30 watts, the 8–ohm speaker will receive about 20 of those
watts (and be twice as loud as the 16-ohm speaker). Take this
into consideration when calculating power handling capacities
and when positioning your speaker enclosures.
For an in-depth discussion of setup tips for amplifiers and
speakers (including a look at impedance and power rating
issues), visit the Support area of the SWR website at www.
swrsound.com.
4420101010 (110V, 60Hz) TW
4420104010 (230V, 50Hz) UK
4420106010 (230V, 50Hz) EUR
4420109010 (220V, 60Hz) ROK
Active: 130kΩ
◊