Contact Info

The Upgrade Company

Customer support and communication is an issue taken very seriously by The Upgrade Company. We strive to exceed your expectations. 
Please drop us an email or voicemail today.  We promise to reply to your inquiry as fast as possible.
 
Contact Information
Office Hours: Monday-Friday 10am-6pm, PST

 

This email address is being protected from spambots. You need JavaScript enabled to view it.

+1 702 708-4378

 (6) of David J. Schulte's patents

 


 

 

Payments & Shipping

 

   
 
   


 
   

 

 
   

                           
             


       
          

 

 

The Upgrade Company, AudioVisual Equipment  Dealers, Harbor Springs, MI 

 

 

 

 

 

 

 

 

 

 

Contact Info

The Upgrade Company

Customer support and communication is an issue taken very seriously by The Upgrade Company. We strive to exceed your expectations. 
Please drop us an email or voicemail today.  We promise to reply to your inquiry as fast as possible.
 
Contact Information
Office Hours: Monday-Friday 10am-6pm, PST

 

This email address is being protected from spambots. You need JavaScript enabled to view it.

+1 702 708-4378

 (5) of David J. Schulte's patents

FIND OUT WHAT OUR CLIENT TESTIMONIALS SAY... 

 

+ 30 Day In Home 100% Refund Period

+ 5 Year Parts & Labor Warranty with Every Signature Edition Upgrade

+ 100% GUARANTEED to beat ANYTHING else on the market!

 

Nothing we sell ever comes back.  

We don't even have to advertise.  Once our clients experience for themselves the extreme high performance & "bang for the buck" we deliver, they keep coming back as funds permit.  

The Upgrade Company would not continue to be A+ rated on the nationwide BBB algorithm month after month unless we were delivering on our promises.

Please Email Us on This email address is being protected from spambots. You need JavaScript enabled to view it.  to place order

Illusion II Single Chassis With Signature Edition Upgrade

Illusion II Single Chassis With Signature Edition Upgrade
Brand: Krell
Product Code: Illusion II Single Chassis
Availability: In Stock
Price: $7,500.00
Qty:  
   - OR -   

Includes our $1499 Krell Signature Edition Upgrade and Unique RFI EMI Riddance Technology for absolutely pristine reproduction

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.

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.

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 Krell’s Current Mode, discrete, balanced analog circuitry. 

Power 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.

 

Analog Inputs
  • 2 pr. balanced via XLR connectors
  • 3 pr. singleended via RCA connectors

Digital Inputs
  • 1 AES/EBU via XLR connector
  • 2 coaxial via RCA connectors
  • 2 optical via Toslink connectors

Main outputs
  • 1 balanced via XLR connectors
  • 1 pr. single]ended via RCA connectors
  Headphone output
  • 1 via 3-conductor 6.35 mm (1/4 inch) connector 

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 2-conductor 3.5 mm connector

Control outputs
  • 2 individually programmable 12 VDC trigger outputs via 2-conductor 3.5mm connectors (30 mA maximum per output)
 
Input impedance
      • Balanced: 40kΩ
      • Single: Ended 20kΩ

Output impedance
  • Balanced: 310 Ω
  • Single-ended: 155 Ω
  • Headphone: <3.0Ω

Gain
  • Balanced: 12.0 dB
  • 6 dB (single-ended output)
  • Singleended: 6.0 dB
  • Headphone: 5.1 dB with 32 Ω load

Volume control 
  • Current mode, 12-bit, discrete R-2R ladder

Input overload
  • > 7.0 V RMS balanced or single-ended

Output overload
  • Balanced: >16 V RMS
  • Single-ended: >8.0 V RMS
  • Headphone: >3.0 V RMS, 32 Ω load
  Frequency response
  • 20 Hz to 20 kHz +0, -0.02 dB
  • 0.25 Hz to 1.2 MHz +0, -3 dB

Total harmonic distortion plus noise
  • Balanced Output: <0.003%, 20 Hz to 20 kHz, at 4.0 V RMS
  • Headphone: <0.09%, 20 Hz to 20 kHz, 2.0 V RMS, 32 Ω load

Signal-to-noise ratio
  • 100 dB wideband, unweighted
  • 107 dB "A"-weighted, both referred to 4.0 V RMS balanced

Power consumption 
  • Standby: <2 Watts
  • Power on: 40 Watts

Dimensions 
Preamplifier only:
  • 17.3 in.W x 3.8 in. H x 18.3 in. D
  • 43.8 em W x 9.7 em H x 46.4 em D

Weight
  • Shipped: 38 lbs., 17.2 kg
  • Preamplifier only: 23 lbs., 10.4 kg

Write a review

Your Name:


Your Review: Note: HTML is not translated!

Rating: Bad           Good

Page information last updated: 06/05/2020

Disclaimer: We believe but do not guarantee that the information on this website is correct at the time of publication.

The Upgrade Company LLC © ®™

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Tel: +1 702 708-4378