XPA-4

Power Output
ALL MODELS: Power Output Per Channel

300 watts RMS per channel; 20 Hz - 20 kHz; THD < 0.1%; into 8 Ohms
550 watts RMS per channel; 20 Hz - 20 kHz; THD < 0.2%; into 4 Ohms
800 watts RMS per channel; 20 Hz - 20 kHz; THD < 0.5%; into 2 Ohms

ALL MODELS: FTC Rated Power; 2 Channels Driven; 20 Hz - 20 kHz; THD <0.1%

300 watts RMS per channel; THD < 0.1%; into 8 Ohms (120 VAC line).
490 watts RMS per channel; THD < 0.1%; into 4 Ohms (120 VAC line).

XPA Gen3 Power Per Channel: All Channels Driven; THD <0.1% ; into 8 ohms
Two:                
300 watts RMS per channel
Three:             
275 watts RMS per channel
Four:                
260 watts RMS per channel
Five:                
250 watts RMS per channel
Six:                  
225 watts RMS per channel
Seven:           
200 watts RMS per channel
 
Power Bandwidth (at rated power; 8 Ohm load)
20 Hz to 20 kHz (+ / - 0.1 dB)

Broad Band Frequency Response
20 Hz to 20 kHz +0/-2 dB

THD + noise
< 0.005%; at 100 watts RMS; 1 kHz; 8 Ohms

Signal to Noise Ratio (8 Ohm load)
> 115 dB; ref FTC rated power; unbalanced input (A-weighted). 
> 86 dB; ref 1 watt; unbalanced input (A-weighted). 

Minimum Recommended Load Impedance
4 Ohms; which equals one 4 Ohm load or two paralleled 8 Ohm loads. 

Damping Factor (8 Ohm load)
> 500. 

Speaker Output Connections
Audiophile grade, gold plated, 5-way binding posts.

Power Supply
High efficiency, audiophile grade, Switch Mode Power Supply (SMPS).

Input Sensitivity (for rated power; 8Ohm load)
1.5 V.

Gain
29 dB.

Input Connections
Unbalanced (RCA); balanced (XLR); one each per channel, independently selectable.

Input Impedance
33 kohms (balanced).
23.5 kohms (unbalanced).

Trigger
Trigger Input: 5 - 12 V (AC or DC); Trigger Output: 12 VDC; can drive any load up to 120 mA.

Power Requirements
Between 100 VAC and 250 VAC @ 50 / 60 Hz (automatically detected).

Front Panel Controls and Indicators
Standby; push button (halo ring changes color to indicate Standby or On).
Status LEDs; one per channel; blue.
Status LEDs change to red to indicate a fault condition.

Rear Panel Controls
AC Power switch; rocker switch (switches AC main power).
Status LEDs switch; disables front panel Status LEDs and dims Standby button halo.
Input selector switches (one per channel); metal toggle switches; select between balanced and unbalanced inputs.
Circuit Breaker; press button to reset circuit breaker.

Protection
The XPA Gen3 is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.

Dimensions:
17” wide x 8” high x 19” deep (unboxed; including feet).
17” wide x 7” high x 19” deep (unboxed; without feet).
24-1/2” wide x 12” high x 24-3/4” deep (boxed).

Weight

XPA four Gen3: 42.5 lbs (unboxed)