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SP-01
Loudspeaker

The SP-01 high-efficiency single-point source speakers provide seamless coherence and the dynamic capabilities that make them ideal companions for ZEILER pre- and power amps

 
I see the SP-01 as a modern interpretation and a tribute to the iconic studio monitors from Tannoy and Altec, which served as the standard in recording and broadcasting studios during the 1960s and 70s.
— Ralf Zeiler
 

The "SP-01" loudspeakers are available in two high-quality surface finishes: piano high gloss or an elegant satin finish, characterized by its subtle, matte texture. Different colors for the enclosure and the front are available. The various finishes accommodate a range of design preferences, ensuring they blend seamlessly with your living environment.

 
 

Design Details

Professional 15 inch coaxial driver with elliptical 80 x 60° wave guide providing constant directivity, seemless coherence and great dynamic range

With a minimum impedance of 8 Ohms and 97 dB efficiency the SP-01 is an easy load for any amplifier

The front grille, covered with acoustic fabric, provides excellent sound transparency and is easily detachable, held in place by hidden magnets

Adjustable feet enable an inclined positioning to optimize spatial imagery at the preferred listening position

Design

  • High-efficiency coaxial single-point-source speaker

  • Vented enclosure with variable bass port

  • Resonance optimized enclosure

  • The dimensions conform to the Golden Ratio principle, supporting resonance control

  • Enclosure walls are a compound of several wood- and non-wood layers of different density and hardness


Components

  • Professional 15 inch neodymium coaxial driver with carbon fiber reinforced paper cone

  • State of the art mid/high compression driver with 113 dB efficiency

  • Constant directivity wave guide projecting a constant 80x60 degrees up to the highest frequencies

  • Low-loss 2-way crossover featuring custom made paper-in-oil capacitors

  • Cryo treated internal wiring


Usability

  • High efficiency of 97 dB and 8 ohms minimum impedance provides an easy load for any amplifier

  • The speaker is designed to be used either with or without the front grille attached

  • Available in different color combinations for the enclosure and the front

  • Constant directivity of 80x60 degrees up to the highest frequencies avoids sweet spot for the listener

  • Variable port allows fine tuning the bass response to room size and wall distance

  • Adjustable feet allow for fine tuning the spatial projection of the speaker at your listening position

 
 

Technical Specifications

Design: 15-inch coaxial single-point-source speaker

Efficiency: 97 dB / 1W / 1m

Impedance: 8 Ohms (minimum @ 200 Hz)

Frequency Range: 30 – 20’000 Hz

Power Handling: 500 W 

Dimensions: 68 (width) x 42 (depth) x 116 (height incl. feet) cm 

Weight: 40 kg (88.2 lbs) per unit