Krell Silver Aluminum Integrated Amplifier - S300I

Krell Silver Aluminum Integrated Amplifier, Model S300I

The S-300i is the first Krell integrated amplifier to feature iPod connectivity and extends the award winning tradition of audiophile grade integrated amplifiers.

A low profile chassis fronted by an elegantly finished silver Aluminum front panel hints at the potent circuitry hidden within its walls. Small in stature but big in performance, the S-300i integrated amplifier develops 150 W into 8 Ohms and 300 W into 4 Ohms. Employing a massive 750 VA toroidal transformer and 38,000 microfarads of capacitance guarantees huge power capability for maximum dynamic impact. Both balanced and single-ended inputs are provided, and the Theater Throughput™ mode, developed by Krell, simplifies integration into home theater systems. Robust WBT binding posts provide superior loudspeaker cable termination. New for the S-300i is direct connection for all generations of Apple iPods /iPhones with complete control of the iPod functionality via the included remote control. Unique for the category, the S-300i taps audio from the fully differential output included in the internal DACs of iPods/iPhones and maintains this balanced signal throughout the circuitry.

The S-300i features the latest Krell Class A, direct coupled design, and fully balanced preamplifier circuitry for the lowest noise reproduction possible. Krell Current Mode provides unequaled bandwidth for the most revealing playback of today's high resolution music sources. Direct coupled circuitry eliminates impact-robbing capacitors from the signal path and an elegant, custom-machined level control adjusts volume.

The included solid aluminum remote control replicates all front panel options as well as providing control for a connected iPod/iPhone. RS-232 is also included for inclusion in advanced control systems.

Features:

• Elegantly finished silver aluminum front panel
• Develops 150 W into 8 Ohms and 300 W into 4 Ohms
• A massive 750 VA toroidal transformer and 38,000 microfarads of capacitance
• Both balanced and single-ended inputs are provided
• Theater Throughput™ mode simplifies integration into home theater systems
• Direct connection for all generations of Apple iPods /iPhones
• Krell Class A, direct coupled design, and fully balanced preamplifier circuitry for the lowest noise reproduction possible

Specifications:

• Inputs
  • 1 pr. balanced via XLR connectors
  • 3 pr. single-ended via RCA connectors
  • 1 dedicated iPod input via 30-pin connector
• Outputs
  • 1 pr. preamp outputs via RCA connectors
    
  • 1 pr. speaker outputs via gold-plated binding posts
• Control Inputs
  • 1 RS-232 input via 9-pin D-subminiature connector
    
  • 1 remote IR detector input via 3-conductor 3.5 mm connector
    
  • 1 12 VDC trigger input via 2-conductor 3.5 mm connector
• Control Output
  • 1 programmable 12 VDC trigger output (30 mA maximum current) via 2-conductor 3.5 mm connector
• Input Impedance
  • Balanced: 95 kÙ
    
  • Single-ended: 47.5 kÙ
• Frequency Response
  • 20 Hz to 20 kHz +0, -0.14 dB
    
  • <2 Hz to 110 kHz +0, -3 dB
• Signal-To-Noise Ratio
  • >84 dB, wideband, unweighted, at maximum gain, referred to full power output
    
  • >93 dB, "A"-weighted
• Gain
  • 32.5 dB
• Input Sensitivity
  • Single-ended or balanced: 800 mV RMS
• Total Harmonic Distortion
  • <0.035% at 1 kHz, at 150 W, 8 Ù load
    
  • <0.26% at 20 kHz, at 150 W, 8 Ù load
• Output Power
  • 150 W RMS per channel at 8 Ù
    
  • 300 W RMS per channel at 4 Ù
• Output Voltage
  • 99 V peak to peak
    
  • 35 V RMS
• Output Current
  • 15 A peak
• Slew Rate
  • 50 V/S
• Output Impedance
  • <0.080 Ù at 20 Hz
    
  • <0.11 Ù, 20 Hz to 20 kHz
• Damping Factor
  • >100 at 20 Hz, referred to 8 Ù
    
  • >75, 20 Hz to 20 kHz, referred to 8 Ù
• Power Consumption
  • Standby: 40 W
    
  • Idle: 60 W
    
  • Maximum: 1000 W
• Heat Output
  • Standby: 140 BTU/hr
    
  • Idle: 210 BTU/hr
    
  • Maximum: 1600 BTU/hr

Preamp Only

• Gain
  • 6.3 dB (single-ended)
• Volume Control
  • Current-mode, 12-bit, discrete R-2R ladder
• Input Overload
  • Balanced: 12 V RMS
    
  • Single-ended: 6 V RMS
• Output Overload
  • 8 V RMS (single-ended)
• Frequency Response
  • 20 Hz to 20 kHz +0, -0.05 dB
    
  • <2 Hz to 1.0 MHz +0, -3 dB
• Total Harmonic Distortion
  • <0.009%, 20 Hz to 20 kHz, at 2 V RMS
• Signal-To-Noise Ratio
  • >85 dB, wideband, unweighted, at maximum gain, referred to 2 V RMS
    
  • >94 dB, "A"-weighted

Approximate Dimensions:

• Height: 4.09 "
• Width: 17.26"
• Depth: 17.70"

Approximate Weight:

• Unit: 42 lbs
• Shipping: 51 lbs

Warranty Information:

• Manufacturer Warranty (authorized online retailer): Limited five year parts and labor