13 W, 20-20 kHz 4 Ohm load 1% THD max
16 W, 20-20 kHz 8 Ohm load 1% THD max
20 W, 20-20 kHz 8 Ohm load 10% THD max (The vast majority of amplifier manufacturers provide THD numbers that do not correspond to maximum power, and are therefore quite misleading. This is the true spec at maximum power. Typical THD is 1% at nominal power.)
Signal-to-Noise Ratio
102 dB 15W 8ohms
Crosstalk
-60 dB 1 kHz, any channel to any channel
Input Type
Unbalanced (Active Balanced Optional)
Unbalanced Input Connector RCA
Balanced Input Connector Dual DB-25F (model AmpTraXX / BI)
Impedance 20 k Ohm Minimum each leg to ground
Frequency Response
20-20 kHz Low-Frequency filter OFF
Maximum Level - SOA 4 volts p-p 20W 8ohm load each channel level control full
Maximum Level - SOA 2.25 volts p-p 13W 4ohm load each channel level control full
Outputs
Direct Coupled
Output Connectors Screw Terminal Accepts 22 to 14 AWG wire
On/Off Transient Muting, active "depop" circuitry built-in
Short Circuit Protection Output to Output, Output to Ground Shutdown - no damage
Automatic over-temperature shutdown
Indicators
Clip Indicators 90% SOA, Red LEDs 20W 8ohm load each channel level control full
Signal Present Indicators 0.003 volts p-p, Green LEDs
Power Indicator Blue LED
Serial Control
Connector DB9 Male
Serial Protocol EIA232 38400 N,8,1 ASCII Protocol
Serial Control Capabilities Volume, Filter, Filter Properties, etc.
Switches
Volume Control Disable
disables front volume controls Switchable On-Off
Reset Factory Defaults
restores all filter and gain settings to defaults
Firmware Update Mode
forces AmpTraXX to wait for Firmware Updates via RS-232
Shield Lift
lifts shields from chassis ground
Power
Input Voltage 120/220 VAC 50/60 Hz Auto Detect
Input Power 400 Watts Maximum
Power supply fan cooled
Agency Compliance UL CE CSA WEEE
Physical
Size 19"W x 3.5"H x 12"D (48cm x 9cm x 30cm)
Weight 10 lb (5 kg)
Environment
0º to 38º C (32º to 100º F)
0 to 90% relative humidity, non-condensing
Specifications subject to change without notice.
MPEG Layer-3 audio coding technology licensed
from Fraunhofer IIS and Thomson.