Loudspeakers

HB-X1

Kiso Acoustic’s compact reference loudspeaker: an instrument-inspired cabinet handcrafted by Takamine Gakki, with an ebony wood-horn tweeter, selected 100 mm woofer and upgraded Mundorf crossover.

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Key Features

  • Two-way bass-reflex standmount loudspeaker
  • Cabinet handcrafted by Takamine Gakki in Japan
  • Thin, lightweight cabinet inspired by acoustic instruments
  • No internal acoustic-absorption material
  • Selected 100 mm cone woofer
  • 17 mm wood-horn tweeter individually carved from ebony
  • Premium Mundorf crossover coils, capacitors and resistors
  • Copper-foil inductors with optimized skin-effect and vibration characteristics
  • Ultra-low-loss crossover capacitors
  • Revised internal bracing, base geometry, bottom panel and wiring
  • Hard-maple front panel with premium piano-black finish
  • Natural-wood purfling
  • Rosewood cabinet binding
  • Rhodium-plated tellurium-copper terminals
  • Banana-plug compatible
  • Single centre-channel version available by special order
  • Handcrafted in Japan

Design & Build

The HB-X1 advances the instrument-building principles introduced with the original HB-1. Its thin, lightweight enclosure is handcrafted by Takamine Gakki and uses carefully shaped internal bracing rather than conventional acoustic-absorption material to control resonance.

The crossover network incorporates premium Mundorf copper-foil coils, ultra-low-loss capacitors and high-quality resistors. Kiso Acoustic also refined the internal bracing, base structure, bottom-panel material and wiring to complement the upgraded network.

Natural-wood purfling and rosewood binding are applied around the cabinet by experienced instrument makers, while the hard-maple front panel receives a high-grade piano-black finish.

System Pairing

With an eight-ohm nominal impedance and 85 dB sensitivity, the HB-X1 can be paired with refined tube or solid-state amplification capable of providing suitable power for its sensitivity and listening level.

Its compact dimensions allow it to perform in intimate listening spaces, yet its specified 40 Hz–30 kHz bandwidth makes it suitable as the primary loudspeaker in a full-range two-channel system. Careful stand placement, generous spacing and precise toe-in will help optimize imaging and soundstage scale.

Technical Specifications

SpecificationDetail
TypeTwo-way bass-reflex standmount loudspeaker
Woofer100 mm cone driver
Tweeter17 mm ebony wood-horn driver
Nominal impedance8 ohms
Sensitivity85 dB/W/m
Frequency response40 Hz–30 kHz
Crossover frequency5 kHz
Crossover componentsMundorf copper-foil coils, ultra-low-loss capacitors and resistors
Front-panel materialHard maple
Cabinet detailingNatural-wood purfling and rosewood binding
Internal damping materialNone
TerminalsMachined tellurium copper with rhodium plating; banana-plug compatible
Dimensions (H × W × D)320 × 148 × 224 mm
Weight5.2 kg each
FinishGloss finish with piano-black front panel
Special-order configurationSingle centre-channel speaker
Cabinet manufacturerTakamine Gakki, Japan
Country of manufactureJapan

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