Stewart Audio AV25-2 NET+, User Manual

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AV25-2 User Manual Rev A Page 10
Table of Contents Top
7 Specifications
Max. Output Power (all channels driven)
4 Ω Stereo Power

35W/channel
8 Ω Stereo Power

25W/channel
Performance
Frequency Response (+0, -3dB, 1W)

30 Hz – 20 kHz
Power Bandwidth

30 Hz – 30 kHz
Signal to Noise Ratio

>95 dB
THD+Noise

<0.1% @ full power
Signal to Noise Ratio

>100 dB
External Mute

Contact Closure
Slew Rate

30V/microsecond
Input Sensitivity

0.5V (-6 dBV)
Standard Voltage Gain

28X (26.5 dB)
Input Impedance (Balanced/Unbalanced)

20kΩ/10kΩ
Standby, Idle Current Draw; 1/8 Power Draw

5mA, 10mA, 7.2W
Characteristics

Amplifier Class

D
Input Connectors

3.5mm Euroblock
Output Connectors

3.5mm Euroblock
Power Supply

External in-line 48VDC (included)
Cooling -----------------------------------------------------------

Convection (no fan)
Controls

Level, Mute
LED Indicators

Power, Signal Present, Clip (2)
Construction

Aluminum Enclosure
Dimensions (Length, Width, Height) ----------------------

3.2” X 4.35” X 1.25” (81mm X 110mm X 32mm)
Weight ------------------------------------------------------------

< 0.37 lbs. ( 0.16kg))
Warranty ---------------------------------------------------------

3 years
Plenum Rating

UL2043 Compliant
8 Troubleshooting
Power indicator (LED) is not illuminated.

Check that the amplifier is plugged into a live outlet. Apply an input audio signal to one or
both inputs to wake the amplifier from sleep mode. After you have ensured that it is not a
power issue and that the amplifier is not in sleep mode, disconnect any speakers. If the
amplifier turns on after a few seconds delay, then the problem is in the output connection.
Check wiring and speakers for short circuits. Make certain that the speaker leads are not
grounded.
No output on one or both channels; Power indicator is lit.

Check that level controls are not turned down. Check that input and output connections are
secure. Ensure signal present LED is illuminated to denote a signal. If there is no signal
detected check signal source and that level controls are set high enough.