Manley Labs STINGRAY® II Integrated stereo preamp/amp

The Manley Stingray II Integrated Tube Amplifier is a meticulously crafted evolution of its esteemed predecessor, designed to deliver exceptional audio fidelity with enhanced functionality. It maintains the original’s revered tube circuitry and superior output transformers while introducing significant advancements to elevate your listening experience.

Key Features:

• Enhanced Power Supply: Substantially increased high-voltage tube energy storage provides more solid and coherent bass control and impact.
• Integrated Headphone Amplifier: A conveniently located 1/4″ headphone jack on the right side fascia reroutes output from the speaker binding posts and mutes the subwoofer output, offering a dedicated and high-quality headphone listening experience.
• Advanced Remote Control: The included remote operates via both Radio Frequency (RF) and Infrared (IR) technologies. RF mode allows omnidirectional use through walls and cabinets, while IR compatibility ensures seamless integration with universal learning remote controls. Control volume, balance, input selection, and display settings effortlessly.
• Customizable Input Levels: Individually level-trim each input to optimize system gain staging across various devices, ensuring consistent audio performance.
• Dynamic LED Display: Adjust the blue LED displays surrounding the input and volume encoder knobs to your preference—dim them, turn them off after a set period, or activate the “Starlight” screen-saver mode with customizable speed and intensity.
• User Settings Memory: All custom configurations are saved when the unit enters standby mode, preserving your preferences even during power interruptions.
• Versatile Output Stage: The EL84 output stage can be switched between approximately 20 watts of triode power and 40 watts of ultra-linear push-pull operation, allowing you to tailor the amplifier’s response to your listening preferences.
• Convenient Bias Adjustment: Easily accessible trimpots and test points on the amplifier’s top surface facilitate straightforward individual bias adjustments for each tube.
• Subwoofer Integration: A post-volume subwoofer output enables seamless connection to active powered subwoofers, with the subwoofer tracking main speaker volume changes for cohesive low-frequency reproduction.
• Tape Loop Functionality: A switchable tape loop (insert) with bypass switch allows integration of external processors or recording devices, with the tape return usable as a fifth line input if needed.

Specifications:

• Inputs:
  • 3 x Stereo Line RCA Inputs
  • 1 x Stereo Line 1/8″ (3.5mm) TRS Mini-Jack Input
• Outputs:
  • Recording Out (Tape Out)
  • Subwoofer Out
  • Tape Loop (Insert) with Bypass Switch
  • 1/4″ Headphone Output (mutes speakers and subwoofer output when in use)
• Control Functions:
  • Logic-Controlled Volume and Balance
  • Triode and Ultra-Linear Output Stage Mode Switching
• Tube Complement:
  • Output Tubes: 8 x EL84
  • Driver Tubes: 2 x 12BH7EH (previously 6414) Dual Triodes
  • Input Tubes: 2 x 12AT7EH
• Performance:
  • Maximum Output Power (Ultra-Linear Mode): 32W x 2 channels at 1.5% THD into 5 ohms
  • Maximum Output Power (Triode Mode): 18W x 2 channels at 1.5% THD into 5 ohms
  • Frequency Response: 15Hz – 58kHz (-1dB)
  • Gain: 35dB at maximum volume
  • Input Sensitivity (Ultra-Linear Full Power): 210mV in = 32W out into 5 ohms
  • Signal-to-Noise Ratio: Typically 72dB A-weighted at 1W output
  • Total Harmonic Distortion + Noise Ratio: Typically 64dB at 1W output
  • Input Impedance: 12k ohms nominal
  • Optimum Speaker Load: 5 ohms
  • Damping Factor: 2.4
  • Headphone Jack Output Impedance: 53 ohms
• Remote Control:
  • Type: RF (Radio Frequency) and IR (Infrared), user-selectable
  • Functions: Volume, Balance, Input Switching, Mute, Dim, Insert, Sleep Timer
• Power Consumption:
  • Standby: 6W
  • Idle: 198W
  • Maximum at Full Power: 300W
• Power Supply:
  • Factory set for 100V, 120V, or 220-240VAC operation, depending on the destination country’s mains voltage
• Dimensions and Weight:
  • Width: 19″ (48cm)
  • Depth: 14″ (36cm)
  • Height: 7.5″ (19cm)
  • Shipping Weight: 35 lbs (16kg)

The Manley Stingray II Integrated Tube Amplifier combines classic tube warmth with modern versatility, making it an ideal centerpiece for any high-fidelity audio system.

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