Sonamp® Power Amplifers
275 SE Series
Sonamp® 275 SE Series Amplifiers
Specifications
Rated Power (20Hz – 20kHz) RMS:
75 Watts per channel @ 8 ohms
125 Watts per channel @ 4 ohms
135 Watts per channel @ 2.7 ohms
The new Sonamp® 275 SE (Sound Enhancement) amplifiers
include a factory-installed Sonance BBE® Sound Enhancement
SAT (Smart Amplifier Technology) module. The BBE process
improves presence and detail of speakers, especially at lower
listening volumes. This makes it particularly effective at improving
the sound quality of distributed audio systems playing
background music. BBE restores clarity and definition (or focus)
to spoken voices, making paging systems easier to understand
without having to run them at high volumes. The BBE process
is so effective that it can even compensate for inferior sound
from poor-quality source material or compressed sources like
MP3, etc. In addition to manual control, the BBE effect can also
be triggered on/off and the effect amount changed (+6dB or
+9dB) by an external control voltage.
Bridged Power (20Hz – 20kHz) RMS:
250 Watts @ 8 ohms (275 SE only)
Midband Power (1kHz, at Clipping) RMS: 114 Watts per channel @ 8 ohms
140 Watts per channel @ 4 ohms
168 Watts per channel @ 2.7 ohms
Bridged Midband Power (1kHz) RMS:
270 Watts @ 8 ohms (275 SE only)
IHF Dynamic Power
(20ms 1kHz Tone Burst)
per IHF RS-490/3.2:
120 Watts per channel @ 8 ohms
194 Watts per channel @ 4 ohms
239 Watts per channel @ 2.7 ohms
IHF Dynamic Headroom
+1.75 dB @ 8 ohms
+1.9 dB @ 4 ohms
+2.5 dB @ 2.7 ohms
Features:
Total Harmonic Distortion (2-channel mode): 0.05% 20Hz – 20kHz @ 8 ohms
0.08% 20Hz – 20kHz @ 4 ohms
• Factory-installed BBE SAT module in all versions
0.15% 20Hz – 20kHz @ 2.7 ohms
• High-current amplifier topology that can operate at 2.66 ohms
Total Harmonic Distortion (Bridged mode): 0.05% 20Hz – 20kHz @ 8 ohms
• Auto-resetting thermal protection shutoff; inrush current-
limiting circuit; active current limit, short-circuit and speaker
protection
I.M. Distortion (SMPTE 4:1) @ 8 ohms:
0.008% @ 1 watt
0.015% @ 75 watts
Signal to Noise Ratio:
105dB below rated output
(A-weighted)
• Defeatable auto-on signal sensing with adjustable turn-on delay
(2, 4, 6, 8, 12 seconds)
Input Sensitivity:
0.7 volts for rated output
(75 watts @8 ohms)
• Bridge/mono switch (not available on 275X3 SE)
• Defeatable high-pass filter to protect in-wall volume controls
Input Impedance:
47k ohms, Min.
BBE Effect Level:
+9dB/+6dB/OFF
120 VAC, 50/60Hz
230VAC 50/60Hz
675 watts (@ 4 ohms, full power)
1330 BTU
• Tamper-resistant, recessed input level and auto-on sensitivity
controls; recessed power switch prevents accidental turn-off
Power Requirement (120V versions):
Power Requirement (230V versions):
Power Consumption (all versions):
Heat Output (at Full Power):
Dimensions (W x H x D):
• Signal present LEDs and protect/clipping LEDs for easy level setup
• 275X3 SE has 3 built-in speaker switches and connections for
3 pairs of speakers.
• Available versions: 275 SE / 275 SE RMF,
275X3 SE / 275X3 SE RMF,
16¾" x 37/8" x 15¼"
(425mm x 98mm x 387mm)
275 SE (230V) / 275 SE RMF (230V)
Dimensions (W x H x D):
Rack-Mount Version
19" x 3½" x 15¼"
(483mm x 89mm x 387mm)
Shipping Weight:
24 lbs (10.9 kg)
w w w. s o n a n c e . c o m
212 Avenida Fabricante
San Clemente, CA 92672-7531 USA
(800) 582-7777 or (949) 492-7777
FAX: (949) 361-5151
Technical Support: (800) 582-0772
©2005 Sonance. All rights reserved. Sonance, Sonamp and Smart Amplifier Technology are trademarks or registered trademarks of Dana Innovations.
“BBE” and its designs are the registered trademarks of BBE Sound, Inc..
06/07
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