LTL / Lithos Transmission Line

Pure Geometry. Pure Sound.

// The Waveguide

ACOUSTIC MAZE

  • Continuous organic pathway to prevent reflections and turbulence
  • Progressive geometric reduction as passive mechanical low-pass filter
  • Mathematically tuned to free-air driver resonance
  • Orthogonal spatial exit for omnidirectional low-frequency coupling
LTL Transmission Line Waveguide
// The Material

FIRST PRINCIPLES

  • Monolithic concrete pour with ultra-high-performance concrete
  • Massive inertial damping to prevent cabinet coloration
  • No internal insulation, porous damping, or fluff for an unrestricted, high-velocity air pathway
  • No creases, sealing, glue-ups, or micro-pores
LTL Monolithic Concrete Speaker
// The Signal

NO ELECTRONICS

  • Straight amplifier-to-voice-coil signal path
  • No electronics, capacitors, inductors, resistors, filters, or crossovers
  • Zero phase shift and circuit-induced signal degradation
  • No energy loss or frequency dips
LTL Monolithic Concrete Speaker
// The Dynamics

PRISTINE ACOUSTICS

  • Strictly mechanical filters for linear response
  • True single point-source radiation for entire frequency spectrum
  • Perfect phase linearity and holographic time-alignment
  • Pristine dynamics with instantaneous transient response
LTL Monolithic Concrete Speaker
// The Product

SEAMLESS, STATELESS, TIMELESS

  • Single-cast concrete body with zero seams, structural flex, or cabinet coloration
  • Purely mechanical low-pass filter
  • High-density concrete immune to wear and age
  • A permanent physical and acoustic presence
LTL Monolithic Concrete Speaker

Acoustic Specifications

// SYSTEM ARCHITECTURE

Physical Parameters

  • Enclosure Topology: Monolithic Organic Transmission Line
  • Enclosure Material: Ultra-High Performance Concrete (UHPC)
  • Internal Damping: Zero fluff / Unrestricted air pathway
  • System Crossover: Direct drive / 0% passive or active crossovers
LTL Transmission Line Waveguide Internal Structure
// ACOUSTIC RESPONSE

Frequency & Dynamics

  • Effective Bandwidth: 28 Hz — 22,000 Hz (± 2.5 dB)
  • Sensitivity: 93 dB @ 2.83V / 1m
  • Nominal Impedance: 8 Ohms (Min. 6.8 Ohms)
  • Phase Linearity: ± 5° across audible range
// TRANSDUCER & DIMENSIONS

Mass & Geometry

  • Driver Diameter: 200 mm (8-inch) Custom Full-Range Point Source
  • Dimensions (H × W × D): 1280 mm × 360 mm × 480 mm
  • Total Mass: 142 kg per channel
  • Origin: Hand-poured & precision finished in Vienna, Austria

Zero Resonance. Absolute Truth.

// THE MANIFESTO

Acoustic Purity

  • Traditional speaker cabinets flex, store energy, and re-radiate unwanted coloration. LTL was conceived from first principles to eliminate cabinet acoustic signatures entirely.
  • By casting the enclosure as a seamless, ultra-dense concrete monolith, internal energy is guided along a calculated transmission pathway rather than absorbed by porous material.
  • No electronic crossovers distort time-alignment or phase relationship. The signal flows directly from amplifier to voice coil.
LTL Monolithic Concrete Speaker
// AUSTRIAN CRAFTSMANSHIP

The Studio

  • Designed and hand-poured in Vienna, Austria
  • Individual micro-pore finishing for organic tactile quality
  • Built to outlast generations and transcend transient design trends