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3 pr. balanced via XLR connectors
input/output4 pr. single-ended via RCA connectors
input/output Optional Rack Mount Kit
17.3 in W x 3.8 in H x 1 8.3 in D
43.
8 cm W x 9.7 cm H x 4 6.4 cm D 1 remote IR detector input via 3-conductor 3.5 mm
connector
3ea 12V Trigger input/outputPower Supply Highlights
Oversized for a preamplifier, the power supply features a 95 VA transformer and 40,000 µF of capacitance giving it the ability
to respond quickly to musical demands. The large power supply improves noise rejection and renders the Illusion II impervious
to all but the most severe AC voltage power fluctuations. A new eco-friendly standby mode reduces power consumption to
2W. -
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- 1 AES/EBU via XLR connectors
digital input 2 coaxial via RCA connectors
digital input 2 optical via Toslink connectors digital
input
- -1 RS-232 input via
9-pin D-subminiature c
onnector
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- 1 Headphone output via 3
-conductor 6.35 mm
(1/4 in) connector
Digital Module Highlights
The digital module supports up to 24 bit/192kHz LPCM. All digital signals are fed to an ESS Sabre DAC and then sent to Krells
Current Mode, discrete, balanced analog circuitry. Circuitry Highlights
The Illusion II preamplifier is a dual monaural design with the left and right channels afforded their own power supply
regulation and individual circuit boards. All signal gain is executed with surface mount technology using proprietary multiple-
output current mirrors with nearly 500 times the open loop linearity of other designs. Featuring 700 kHz bandwidth in a zero
feedback, balanced, Krell Current Mode design, the Illusion II shares the same design philosophy as its bigger brother, the
flagship Illusion preamplifier. Negative feedback is not used anywhere in the preamp, nor is it necessary. Open-loop distortion
is typically less than 0.003%. The volume control is realized with a balanced resistor ladder - bandwidth and transient response
of the preamp circuitry are virtually unaffected by the volume setting. The headphone circuitry is identical to the main circuitry,
offering private listening with the same performance as speaker playback.
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DESIGN
SPECIFICATION HIGHLIGHTS
Krell ®is a registered trademark of Krell Industries, LLC., and is restricted for use by Krell Industries LLC., its subsidiaries, and authorized agents. All other trademarks and trade names are
registered to their respective companies. © 2014 by Krell Industries, LLC. All rights reserved.
THE LEADER IN AUDIO ENGINEERING
Krell Industries,
LLC. - 45 Connair Road - Orange, CT 06477-3697 USA
Tel: 203-298-4000 - Fax: 203-799-9796 - Sales Dept: 203-298-4010 - contact@krellonline.com - www.krellonline.com
All operational features, functions, specifications, and policies are subject to change without notice. The Illusion II is the perfect centerpiece for a world class digital and analog audio system. Added to the normal selection of
balanced and single- ended inputs are five digital inputs. The digital module features AES/EBU, coaxial, and optical digital
inputs for use with streaming devices or other digital sources.
Illusion
II Preamplifier
