Soundstream Technologies REFERENCE 405 - Manual (Page 7)

8. PROTECTION CIRCUITS
Your REFERENCE405 amplifier is protected against both overheating and short
circuits by means of the following circuits:
Main power supply fuses (2 at 20 amps each)
Smart Power Supply Thermal Rollback activating at
A fail-safe thermal protection circuit activating at
Speaker over-current protection relays (on the 4 x 25 watt channels).
Your amplifier also incorporates an innovative Fault Diagnosis system that
identifies a blown power supply fuse.
If you experience blown main power fuses, DO NOT increase values beyond
20 amp (each) fuses.
9. TROUBLESHOOTING
PROBLEM
No sound and
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
no power or ground at
no remote turn-on signal
blown fuse near battery
amp power supply fuse is
blown
check 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)
speaker or leads may be
shorted
verify adequate amplifier
ventilation
check input settings on
bottom of amplifier--switch
should be set at inputs
2, 3 or 4” unless using
external inputs
l check input settings on
bottom of amplifier--switch
should be set at inputs “1
2”
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
50 watts x 1 (4 ohms, 12 V, High Current)
40 watts x 4 plus 120 watts x 1 (4 ohms, 14.4
200 watts x 1 (2 ohms)
watts x 1 (1 or ohm)
THD:
Signal to Noise:
Frequency Response: 20 Hz to 20 0.5
(dedicated sub channel): 20 Hz to 400 Hz 0.5
Bandwidth: 15 Hz to 50
(dedicated sub channel): 15 Hz to 1
Stereo Separation:
Damping:
Input Sensitivity: 100
2.5 V
Input Impedance: 12 k ohms
Crossover Specifications:
High Pass: 12 Continuously Variable
from 60 240 Hz (front rear)
Low Pass: 24 Continuously Variable
from 30 120 Hz
Dimensions: 16” W x D x H
11 12