5.25" 2-Way Reference Bookshelf Speakers



The Earthquake Reference Bookshelf Speaker RBS-52 is a compact passive monitor speaker with exceptional audio quality. It has a neutral and elegant appearance making it ideal for any setting. With focus on the core audio qualities the RBS-52 is free from costly gimmicks and bejeweled surfaces. Its rational design and audio obsessed internals comes together to make the  RBS-52 superb value for money and attainable on almost any budget.

The Earthquake aficionado will recognize their iQuake genetics as both tweeter and woofer are almost identical to those in our long running iQuake series, one of the most lauded compact speakers on the market.

Perfect for home theater, in the studio or anywhere a small unassuming high quality speaker  is needed.

A self-centering, removable magnetic fabric front grille provides a pin-hole free front fascia.

Sammenling produkt

2.495,00 DKK
1.840,00 DKK

Sælges parvis

EAN: 0068975901395 Excluding VAT 1472 DKK

Piston-Max Technology

PMT :(Piston-Max Technology) A patented Earthquake technology that enhance acoustical output while keeping a minimal footprint.

The 5.25 inch wideband woofers are manufactured using the Piston-Max Technology. Piston-Max moves the speaker surround to the outer edge of the cone body, resulting in 20 percent increase of surface area. This translates into more sound and higher efficiency.

iQuake Internals

iQuake Internals :  Superior quality highly evolved internals derived from the iQuake speaker line.  Enhanced and perfected over 4 generations of iQuake iterations.

Box dimensions
48 × 32 × 37 cm
8.6 kg


HF Driver
1″ Silk Dome NEO Tweeter
LF/MF Driver
5.25″ Carbon Fiber with patented PistonMax™ Technology
Amplifier Power
Crossover Frequency
3kHz (High Pass)
Frequency Response
30Hz – 20kHz
Nominal Impedance
8 ohm
90 dB
  • 1” silk dome NEO tweeter
  • 5.25” Low-mass rigid carbon fiber mid-bass driver
  • Enforced Bass Reflex Enclosure
  • Gold Plated Terminals
  • PistonMax™ Technology
  • Removable Self-centering Magnetic Grille



Product release