Content

Kalalau Preamplifier

    • The new Bella Sound  preamplifier gets its name, Kalalau – Road to Paradise, from the path it sets your music signal on, a path that takes input signals and leads them, without coloration or degradation, to amplification paradise, either to the Kahili 800W stereo amplifier or to the Hanalei 700W monoblock amplifiers. From there the robust and exquisite signals feed the speakers for presentation of an unbelievably convincing sound field that will mesmerize for years to come, the Na Pali Coast of musical energy and beauty.

    • Noise and linearity must be the chief concerns going into a truly high-end preamplifier design. For these concerns, low noise and high linearity are simultaneously achieved with a J-FET design. The inherent neutrality of a properly executed J-FET design does not benefit from the “voice” of any signal path capacitors, hence, none are used. Instead, high quality film capacitors bypass all four power supplies. The noise and linearity goals are furthered by the implementation of bulk foil naked resistors throughout the signal path. Multi-layered power supply filtration is lavished on the amplifier path to keep the signal in absolute pristine condition. Further care is taken by placing each of the amplifier channels and the power supply in separate faraday cages. The architecture is fully balanced from head to tail, including balanced attenuators and a full complement of XLR and RCA connectors at all 14 I/O’s.

    • Listening tests have confirmed the achievement of the desired goals: absolute tonal neutrality, fast and accurate dynamics, and the ability to hear deeply into the recording to the retrieval of astonishingly minute details.

      •  

    Features

    • All Discrete J-FET Design
    • Class-A fully balanced architecture head to tail
    • Naked metal foil signal path resistors throughout
    • DC coupled from inputs to outputs – no signal path capacitors
    • Khozmo balanced attenuators / Vishay MELF resistors
    • Triple filtered regulated power supplies
    • Full Complement Enhanced Bybee Quantum AC Purifiers
    • Faraday cage internal isolation
    • Cryogenically treated transformers, connectors and wiring
    • All input/output connections: XLR true balanced and Cardas RCA
    • Buffered Tape Out outputs
    • Remote control
    • All milled chassis with half inch floor plate provides vibration free foundation
    • Thick polished stainless cover for final shielding layer and striking beauty
    • Hard maple faceplate, black finished with stainless inlays
    • Materials and workmanship provide the highest possible level of look and feel
    • Precision Hand Made in USA
    • 20,000 USD

      • Use the Bella Sound website contact form.
      • List the products you are interested in ordering.
      • Include a shipping address.
      • Indicate payment method: PayPal or Direct Wire Transfer.
      • A no obligation order confirmation will be sent, including pricing and estimated lead times.
      • Upon payment, a receipt will be issued and your products will be scheduled for build in the factory.

      • Gain: 10.3dB SE, 16.3dB Bal, attenuator maximum
      • Frequency Response: 1Hz – 400KHz, at 30dB reference attenuator setting
      • THD: 0.008% typ, 1Vrms, 1KHz
      • Output Noise: 50nV/root Hz typ, 1KHz
      • Signal/Noise Ratio: 103dB, 1Vrms output, 20KHz noise bandwidth, unweighted
      • Attenuation: 63 levels, 1dB steps
      • Input Impedance: 50k Ohms
      • Absolute Max Output Voltage: 10Vp
      • Power Consumption:
        • Standby: 3.6W
        • Active, all features invoked: 34W
        • 120/240 VAC, 50-60Hz
      • Inputs:
        • In 1, In 2, In 3
        • Tape In
        • Home Theater Bypass In
        • All SE (Cardas RCA) and Fully Balanced (XLR)
      • Outputs:
        • Main Out
        • Tape Out
        • All SE (Cardas RCA) and Fully Balanced (XLR)
      • Dimensions: 19.3” W x 5.5” H x 16.9” D
      • Weight: 47 lbs