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Krell Theater 7 XD


7 Channel Power Amplifier
100 Watt Amplifier Featuring Krell iBias Technology

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7 Channel Power Amplifier
100 Watt Amplifier Featuring Krell iBias Technology

The amplifier design uses Krell Current Mode technology that is fully differential and discrete in the critical gain stages. This results in a highly linear and extended frequency response, well beyond the range of hearing, for smooth effortless highs and tight high impact bass.

The power supply consists of two 787VA toroidal transformers and 160,000uF of capacitance. This is shared among all the channels so all of that power is available to the channels with the most demand.



In real world conditions the left, right, and center channels require the lion’s share of the power so this gives the Theater 7 a more effective power supply than other amplifiers that have smaller dedicated power supplies for each channel.


Frequency response
20 Hz to 20 kHz +0, –0.11 dB
<3 Hz to 200 kHz +0, –3 dB

Signal-to-noise ratio
>101 dB, wideband, unweighted, referred to full power output
>114 dB, “A”-weighted

25.5 dB

Total harmonic distortion
<0.02% at 1 kHz, at 100 W, 8 Ω, two channels driven;
<0.20% at 20 kHz, at 100 W, 8 Ω, two channels driven;

Input impedance
Single-ended: 27 kΩ;
Balanced: 54 kΩ;

Input sensitivity
Single-ended or balanced: 1.50 V RMS

Output power, per channel
120W RMS at 8 Ω, 2 channels driven
115W RMS at 8 Ω, 3 channels driven
110W RMS at 8 Ω, 5 channels driven
105W RMS at 8 Ω, 7 channels driven
210W RMS at 4 Ω, 2 channels driven
190W RMS at 4 Ω, 3 channels driven
165W RMS at 4 Ω, 5 channels driven
140W RMS at 4 Ω, 7 channels driven

Output voltage
93 V peak-to-peak
33 V RMS

Output current
10 A peak

Output impedance
<0.025 Ω, 20 Hz to 20 kHz

Damping factor
>320, 20 Hz to 20 kHz, referred to 8 Ω

Power consumption
Standby: 1 W
Idle: 66 W
Maximum: 2000 W

Heat output
Standby: 3.42 BTU/hr.
Idle: 225 BTU/hr.
Maximum: 2200 BTU/hr.

7 single-ended via RCA connector
7 balanced via XLR connector

7 pairs five-way binding posts

Remote connectors
One 12 VDC input (12 V trigger) via 3.5 mm jack


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

80 lbs., 36.4 kg (shipping)
70 lbs., 31.8 kg (unit only)

Download the “Theater 7 Setup Guide”
Download the Krell Theater 7 XD Sell Sheet