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APPENDIX A: ACHERON 80 AND ACHERON 100 SPECIFICATIONS
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Nominal Input Sensitivity 10 dBV (3.2 V rms, 4.5 V peak) continuous is typically the onset of limiting for noise and music
Input Level Audio source must be capable of producing +20 dBV (10 V rms, 14 V peak) into 600 Ω to pro-
duce the maximum peak SPL over the operating bandwidth of the loudspeaker
AMPLIFIER
Type Complementary MOSFET output stages (class AB/H)
Output Power 1685 W total (1125 W low channel, 560 W high channel)
Note: Amplifier wattage rating based on the maximum unclipped burst sine-wave RMS volt-
age the amplifier will produce into the nominal load impedance: low frequency channel, 67 V
rms (95 V peak) into 4 ohms; high frequency channel, 67 V rms (95 V peak) into 8 ohms.
Total Output 3370 W peak
THD, IM TIM <.02%
Load Capacity 4 Ω low channel, 8 Ω high channel
Cooling Forced air cooling, two internal fans (one ultra low-speed fan, one reserve fan)
AC POWER
Connectors 250 V NEMA L6-20 (twistlock) inlet or IEC 309 male inlet
Voltage Selection Automatic, two ranges, each with high-low voltage tap (uninterrupted)
Safety Agency Rated Operating
Voltage
95–125 V AC; 208–235 V AC; 50/60 Hz
Turn On/Turn Off Points 85–134 V AC; 165–264 V AC
Current Draw
Idle Current 0.71 A rms (115 V AC); 0.38 A rms (230 V AC); 0.79 A rms (100 V AC)
Maximum Long-Term Continu-
ous Current
5.8 A rms (115 V AC); 2.8 A rms (230 V AC); 6.3 A rms (100 V AC)
Burst Current 6.4 A rms (115 V AC); 3.2 A rms (230 V AC); 7.2 A rms (100 V AC)
Note: AC power cabling must be of sufficient gauge so that under burst current rms condi-
tions, cable transmission losses do not drop below the loudspeaker’s specified operating volt-
age range.
Ultimate Short-Term Peak Cur-
rent
26 A peak (115 V AC); 14 A peak (230 V AC); 28 A peak (100 V AC)
Inrush Current 7 A peak (115 V AC); 7 A peak (230 V AC); 10 A peak (100 V AC)
PHYSICAL
Enclosure Premium birch plywood
Finish Low gloss, black textured
Mounting 3/8” threaded points on side corners for optional bracket adapters, which allow the Acheron
to be mounted to floors with uptilt or downtilt, as well as on top of the Acheron LF (also with
uptilt or downtilt)
Dimensions 31.00" w x 35.00" h x 20.50" d (787 mm x 889 mm x 521 mm)
Weight Weight 173 lbs (78.47 kg)
ENVIRONMENTAL
Operating Temperature 0° C to +45° C
Non Operating Temperature <–40° C or >+75° C
Humidity to 95% at 35° C
Operating Altitude to 4600 m (15,000 ft)
Non Operating Altitude to 95% at 35° C
Acheron 80 and Acheron 100 Specifications