Krell's New XD Technology
Krell’s “XD” (Xtended Dynamics, Xtended Dimensionality, Xtended Detail) upgrade for the iBias amplifiers takes analready great sounding amplifier and raises its performance to the next level. “XD” is a classic example of Krell’scontinuous R & D efforts reaping benefits across multiple product lines. During the development of the K-300i Integrated Amplifier we discovered substantial sonic improvements by lowering the output impedance below traditional norms. So we applied this technique to our existing line of amplifiers and the improvement was sosubstantial that it required a unique designation, hence, “XD.”
Technical Specifications:-
v
Frequency response:
20 Hz to 20 kHz +0, –0.13 dB
< 0.5 Hz to 100 kHz +0, –3 dB
Signal-to-noise ratio:
> 98 dB, wideband, unweighted, referred to full power output
> 116 dB, “A”-weighted
Gain: 26.2 dB
Total harmonic distortion:
< 0.045% at 1 kHz, at 300 W, 8 Ω
< 0.17% at 20 kHz, at 300 W, 8 Ω
Input impedance:
Single-ended: 100 kΩ
Balanced: 200 kΩ
Input sensitivity: Single-ended or balanced: 2.4 V RMS
Output power: 300 W RMS at 8 Ω / 540 W RMS at 4 Ω
Output voltage: 138 V peak-to-peak / 49 V RMS
Output current: 16 A peak
Slew rate: 40 V/μs
Output impedance: < 0.007Ω, 20 Hz to 20 kHz
Damping factor: > 1140, 20 Hz to 20 kHz, referred to 8W
Power consumption:
Standby: 4 W
Idle: 200 W
Maximum: 2160 W
Heat output: < Standby: 13.7 BTU/hr.
Idle: 800 BTU/hr.
Maximum: 7387 BTU/hr.
Inputs:
3 single-ended via RCA connector
3 balanced via XLR connector
Outputs:
3 pairs binding posts
Dimensions: 17.1 in. W x 7.65 in. H x 21.10 in. D
434 mm W x 194 mm H x 536 mm D
Weight:
100lbs., 45.4 kg (shipping)
85 lbs., 38.6 kg (unit only)