8. PROTECTION CIRCUITS
Your REFERENCE405 amplifier is protected against both overheating and short circuits by means of the following circuits:
0 Main power supply fuses (2 at 20 amps each)
0Smart Power Supply Thermal Rollback activating at 85OC.
0A
0Speaker
Your amplifier also incorporates an innovative Fault Diagnosis system that identifies a blown power supply fuse.
0If you experience blown main power fuses, DO NOT increase values beyond 20 amp (each) fuses.
10. SERVICE
Your Soundstream amplifier is protected by a limited warranty. Please read the enclosed warranty card.
11. SPECIFICATIONS
POWER OUTPUT
25 watts x 4 plus 100 watts x 1 (4 ohms, 12 V)
50 watts x 1 (4 ohms, 12 V, High Current)
40 watts x 4 plus 120 watts x 1 (4 ohms, 14.4 V) 200 watts x 1 (2 ohms)
>240 watts x 1 (1 or l/2 ohm)
9. TROUBLESHOOTING
PROBLEM
No sound and LEDs are not lit
Fault LED is lit
Repeatedly blown amp fuse, frequent activation of Smart
Power Supply Circuit or
speaker protection circuit breakers
no sound from subwoofer channel with 2 or 4 channels of input
no sound from channels
3 & 4 with 2 channels of input
CAUSE
0no power or ground at
amp
0no remote
0blown fuse near battery
0amp power supply fuse is blown
0check speaker configuration, amp may be in “High Power”mode, put amp into “High Current” mode if speaker load is less than 2 Ohms (see
Section 2, Selecting Operating Modes)
0speaker or leads may be shorted
0verify adequate amplifier ventilation
0check input settings on bottom of
• check input settings on bottom of
&2”
0 THD: ~0.1%
0 Signal to Noise: >lOO dB
0Frequency Response: 20 Hz to 20 kHz +/- 0.5 dB
(dedicated sub channel): 20 Hz to 400 Hz +/- 0.5 dB
0 Bandwidth: 15 Hz to 50 kHz (dedicated sub channel): 15 Hz to 1 kHz
0Stereo Separation: >90 dB
0Damping: >200
0Input Sensitivity: 100 mV - 2.5 V a Input Impedance: 12 k ohms
Crossover Specifications:
0High Pass: 12 dB/octave, Continuously Variable from 60 - 240 Hz (front & rear)
0Low Pass: 24 dB/octave, Continuously Variable from 30 - 120 Hz
Dimensions: 16” W x
11 | 12 |