HP8i

High-Power Speaker

Technical Information for System Engineers

Frequency Response (unequalized)

SPL, 1W, 1M (dB)

Frequency (Hz)

Frequency Response on-axis in full space (4π).

designers. All data are available from SoundTube Entertainment or at www.soundtube.com.

Technical data and downloads include:

Tech Sheets – Technical information and architectural specs for system engineers.

Data Acquisition

All performance data acquired at SoundTube’s Technical Measurement Center (TMC) are analyzed using standardized mea- surement techniques, including Measured Length Sequence (MLS) and Time Delay Spectrometry (TDS). Performance, develop- ment, and data acquisition tools include: Gold Line TEF 20 Suite, CLIO, LMS, LEAP, and proprietary modeling software.

Impedance Response

Phase Response

Data for Other SoundTube Products

Also available: Sales & installation information for all SoundTube speaker systems, including open ceiling, in-ceil- ing, surface-mount, in-ground and sound- focusing speakers.

Architectural Specifications

The loudspeaker shall consist of one 203 mm (8.0 in) concentric coaxial coated fiber driver, 25 mm (1.0 in) compression driver with a 50 mm (2.0 in) titanium dia- phragm, and a frequency-dividing network installed in a dual-ported enclosure. The low-frequency voice coil diameter shall be 50 mm (2.0 in).

Performance specifications of a typical production unit shall be as follows: Usable frequency response shall extend from

52 Hz – 17 kHz. The loudspeaker shall be available with a switchable transformer/8 Ohm input, and shall be equipped with corrosion-resistant gold-plated barrier strips for both impedance modes. Taps shall be nominally 8 W @ 70.7 V (16 W @ 100 V), 16 W @ 70.7 V (32 W @ 100 V),

32 W @ 70.7 V (64 W @ 100 V) and 64 W

@70.7 V (tap position not used @ 100 V). The frequency-dividing network shall have a crossover frequency of 1.8 kHz. Rated power capacity of the components and net- work shall be at least 125 Watts continuous RMS power.

The enclosure shall be constructed of a glass-fiber reinforced composite for maxi- mum performance. The grille shall be con- structed of UV-resistant ABS plastic material.

Technical data, EASEplots, SoundTubeSPECsoftware & product downloads available at www.soundtube.com

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Phase Technology HP8i specifications Frequency Response unequalized, Data Acquisition, Architectural Specifications