Alta
A pair of Reference Tower loudspeakers standing in a gallery style room with track lighting and a wood floor

Reference Tower

Reference Series. The ultimate expression of our design capabilities, commitment to sonic accuracy, and of course, aesthetic beauty. Eleven drivers arranged in Dual Plane Mirror Imaging, with delivery and setup included in the continental United States.

Reference TowerEleven drivers, Dual Plane Mirror Imaging

Reference Series / 06

Reference Tower

The ultimate expression of our design capabilities, commitment to sonic accuracy, and of course, aesthetic beauty. Eleven drivers arranged in Dual Plane Mirror Imaging, with delivery and setup included in the continental United States.

Sensitivity 93 dB
Impedance 2 Ohms
Frequency response 14 Hz to 47 kHz
Amplification Bi or tri amped 100 W per channel, crossover included
Height 86 in
Width 16 in top and bottom 12 in centre, 21 in base
Depth 22.5 in top and bottom 21 in centre, 28 in base
Weight 485 lbs
Drivers
  • Four titanium former 10 inch woofers in Alta XTL bass tuning
  • Two titanium former 6 inch lower midranges in Alta XTL bass tuning
  • Two hex cone titanium former 6 inch upper midranges in open back
  • Three amorphous core high output ribbon tweeters
The design

Eleven drivers, mirror imaged.

The Reference Tower by Alta Audio is the ultimate expression of our design capabilities, commitment to sonic accuracy, and of course, aesthetic beauty.

The speaker is a tall, slender column narrowing at the center with rounded sides and top, with a stunning high gloss finish that is built to order in virtually any color.

A thing of beauty, the Reference Tower’s physical design is a work of sonic achievement as well, designed to defeat diffraction distortion.

Mimicking the theoretical perfection of an unlimited full frequency point source.

The Reference Tower’s complement of eleven drivers is arranged in a pattern known as Dual Plane Mirror Imaging: drivers are mirror imaged in both the vertical and horizontal planes with cascading crossovers that converge at the center point, mimicking the theoretical perfection of an unlimited full frequency point source.

The lower midranges and woofers are tuned using Alta Audio’s XTL Bass tuning for fast, extended bass response. The tweeters use amorphous core transformers with an extremely powerful magnet structure to produce a nearly perfect impulse response that is smooth and dynamic.

Crossovers feature 12 gauge Litz coils and silver foil capacitors, and the internal 10 gauge wiring was designed by Paul Kaplan of Waveform Fidelity specifically for this model.

The electronic crossover is from DEQX and is included, with a top of the line digital to analog converter. Delivery and setup are included in the continental United States.

Extended Transmission Line Alta Audio’s proprietary technology that applies sonic geometry to tune speaker cabinets as if they are musical instruments, delivering an accurate, fast, and powerful low frequency response.

Reference Tower

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