Krell Illusion I
DESCRIPTION
Stereo Preamplifier featuring Krell CAST technology
The Illusion preamplifier extends the Krell tradition of separating the power supply from the audio circuitry in our flagship preamplifiers. Sharing the new Class A iBias power amplifier aesthetic and featuring Krell CAST technology, the Illusion preamplifier is the ideal match for the new Solo 375 and Solo 575 power amplifiers.
PRODUCT DETAILS
Technical Specifications
Inputs-
2 pr. CAST via 4-pin bayonet connectors
2 pr. balanced via XLR connectors
3 pr. single-ended via RCA connectors
Tape input- 1 pr. single-ended via RCA connector
Main outputs-
2 pr. CAST via 4-pin bayonet connectors
1 pr. balanced via XLR connector
1 pr. single-ended via RCA connector
Subwoofer outputs-
1 pr. balanced via XLR connector
1 pr. single-ended via RCA connector
Tape outputs- 1 pr. single-ended via RCA connector,buffered
Control inputs-
1 RS-232 input via a 9-pin D-subminiature connector
1 remote IR detector input via a 3-conductor 3.5 mm connector
1 12 VDC trigger input via 3.5 mm connector
1 preamplifier link via an RJ-45 connector
Control outputs-
2 individually programmable 12 VDC trigger outputs via 3.5 mm connectors
1 preamplifier link via an RJ-45 connector
Power output- 1 phone power output (±20 VDC) for KPE via a 9-pin D-subminiature connector
Frequency response-
20 Hz to 20 kHz ± 0.02 dB
0.35 Hz to 720 KHz +0, -3 dB
Single-ended: 8 V RMS
Total harmonic distortion plus noise- Balanced Output: <0.003%, 20 Hz to 20 kHz, 4 V RMS or 4mARMS
Input impedance-
CAST: 25 Ohms
Balanced: 40 k Ohms
Single-ended: 20 k Ohms
Output impedance-
CAST: >1 MΩ
Balanced: 250Ω
Single-ended: 125Ω
Gain-
12 dB (CAST or balanced output)
6 dB (single-ended output)
Volume control- Balanced, current-mode, 16-bit, discrete R-2R ladder
Input overload- Balanced, current-mode, 16-bit, discrete R-2R ladder
Output overload-
CAST: 16 rnA RMS
Balanced: 16 V RMS
Single-ended: 8 V RMS
Signal-to-noise ratio-
4 V RMS balanced or 4 mA RMS CAST output
Wideband, unweighted: >100 dB
“N’ weighted: >109 dB
Physical Specifications
Power consumption-
Standby: 60 W
Power on: 65 W
Power on, with KPE: 75 W
Dimensions-
Preamplifier only: 43.8 cm W x 9.7 cm H x 46.4 cm D
Power supply only: 43.8 cm W x 9.7 cm H x 44.8 cm D
Preamplifier and power supply: 43.8 cm W x 19.2 cm H x 46.4 cm D
Weight-
Shipped: 61 lbs., 27.6 kg
Preamplifier only: 18 lbs., 8.1 kg
Power supply only: 28 lbs., 12.7 kg
