Operation Manual; Frequency Response; Input Impedance (nominal): - Page 27

XLS Series 

Power Amplifi ers

page 27

Operation Manual

Performance

Sensitivity (for full rated power at 8 ohms): 1.4 Vrms.

Frequency Response

(at 1 watt, 20 Hz to 20 kHz): +0 dB, –1 dB.

Signal-to-Noise Ratio

Rated as dBr to full rated 8Ω power output (A-Weighted):
XLS 1000 > 97 dB
XLS 1500, XLS 2000, XLS 2500 > 103 dB

Total Harmonic Distortion (THD):

 < 0.5%.

Intermodulation Distortion (IMD): 

(60 Hz and 7 kHz at 4:1) from full rated output to –30 dB: < 0.3%.

Damping Factor (8 ohm) 10 Hz to 400 Hz:

 >600.

Crosstalk (below rated 8 ohm power):

At 1kHz: >70dB
At 20kHz: >50dB

Input Impedance (nominal): 

20 kilohms balanced, 10 kilohms unbalanced.

Load Impedance: 

2 to 8 ohms per channel in Stereo, 4 to 8 ohms in Bridge Mono.

AC Line Voltage and Frequency

Confi gurations Available (±10%): 

120 VAC 60 Hz, 100 VAC 50/60 Hz, 220 VAC 50 Hz, 230 VAC 50 Hz, 

and 240 VAC 50 Hz.

Controls

Level:

 Two front-panel rotary level controls, one for each channel.

LCD Screen:

 Back-lit LCD allows for crossover confi guration, amp mode confi guration and clip compressor confi guration.

Menu/Prev/Next:

 Three buttons located near the LCD screen that are used to confi gure and access the integrated 

processing.

Power:

 Front-panel switch; on when in the IN position. Blue LED will illuminate when on.

Circuit Breaker: 

Back-panel breaker provides overload protection.

Integrated Processing

PureBand

™

 Crossover System 

Crossover Filter:

 Linkwitz-Riley 24dB per octave.

Crossover Mode:

 Crossover (CH1=LPF, CH2=HPF), Low Pass (both channels LPF), High Pass (both channels HPF), 

Bridge (LPF or HPF)

Peak

X

™

 Limiters:

 Channel independent clip limiter designed to provide maximum output while protecting 

your loudspeakers.

Indicators

Signal Presence Indicators:

 Two green LEDs, one for each channel, illuminate when the channel’s input signal 

exceeds –40 dBu.

XLS Specifi cations