Highlights

• 1" (25 mm) Dome Tweeter
• 1" (25mm) voice coil for extreme power handling and motor force
• Patented split gap motor with multiple copper shorting rings for an extended response with world class open and natural sound
• +/- 1.4mm of linear excursion
• Triple fabric dome with proprietary unifying compound for world class damping
• Large roll surround for higher stroke and full range down to 1500Hz
• Chemically etched, integrated, steel grille featuring artistic hole pattern design
• Mass loaded ABS/PC blend polymer faceplate and mount
• Included threaded rear with large diameter ABS nut for easy flush mounting
• Included 45 degree angle ball mount for surface mounting
• Included bridge mount for placing in openings up to 7" (180mm) wide
• 200 Watts RMS power handling*

* All power ratings are figured using an electronic high pass crossover with a minimum crossover point of 3kHz at 24dB/Octave, 3.5kHz at 18dB/Octave, or 4kHz at 12dB/Octave.

Note that with lower power applications, these frequencies may be adjusted down

Description

Description

Overview

The High Fidelity H1 tweeter is a high stroke, low distortion multilayer fabric dome 25mm tweeter. This tweeter features exceptionally high stroke to allow lower crossover points without compression.

The H1 tweeter features a split-gap design which provides ±1.4mm of linear excursion, approximately 5 to 6 times that of most other tweeters. The result is a wider operational bandwidth - as low as 1500 Hz - and distortion reduced by up to a factor of 4.

The H1 uses a specially developed dome material. The dome's fabric is a lamination of silk, polyester, and cotton and treated with a proprietary compound to unify the layers but allow each to provide their own unique benefits. Silk adds the stretch/pull basic mechanical strength; polyester provides rigidity of shape; cotton provides improved damping.

The H1 does not use a rear chamber to lower its resonance; instead, a larger roll surround provides a lower resonance of the driver. This design allows for higher stroke as well, for full-range output down to 1500 Hz. And by removing the rear chamber, resonances from that chamber are eliminated. The elimination of the rear chamber results in an 11.2mm (7/16") mounting depth for freedom of positioning.

The H1 comes with an integrated chemically etched steel grille featuring an anti-resonant hole-pattern with size of opening optimized for dispersion.

The H1 features a threaded rear body and a large diameter ABS nut for securing it to panels up to 3/8" (9.5mm) thick. Also included is a 45 degree surface cup and metal bridge mount to accommodate every type of installation scenario.

Thiele Small Parameters