JBL XTi100 (c. 2000)
The JBL XTi100 is a floor-standing, 3-way, 4-speaker bass reflex system from the company's XTi series. The series debuted around 2000 and also included the XTi 20, 40, 60, 80, 10 C, and SUB 300. It was priced at ¥88,000 per unit in Japan at introduction. Documentation on this model is thin - most of what survives is a single database entry plus scattered forum chatter. The engineering details that are recorded point to a carefully built speaker.
The driver lineup is unusual for the era. Two 20 cm pulp-cone woofers with corrugation ribs handle the low end. They cross over at 300 Hz to a 12.5 cm cone midrange, which hands off at 3 kHz to a 2.5 cm dome tweeter with a pure titanium diaphragm and aluminum voice coil. The woofers use a bent pole piece in the magnetic circuit to suppress dynamic compression. Rated impedance is 6 Ω, allowable input is 100W RMS, and sensitivity is listed at 91 dB/2.83V/m. Frequency response is stated as 30 Hz to 22 kHz. The cabinet measures 273 × 1,130 × 342 mm and weighs 24.0 kg.
The enclosure is the XTi series' signature feature. It is a hexagonal design built from just four pieces - top, bottom, and two one-piece panels for the front-side and rear-side. The shape is meant to minimize internal parallel surfaces and reduce standing waves. The speaker supports bi-wiring and bi-amplification through gold-plated binding posts that accept banana plugs.
A period brochure described the XTi line as offering "classic JBL musicality and dynamics in a luxurious contemporary finish." The series was positioned as a 2000-era product line, though exact production years for the XTi100 itself aren't confirmed.
Owner reports are limited. One Russian forum user noted a resonance inside the cabinet at 125 Hz in a 20-square-meter room. A listing for a replacement midrange driver (part number 9746106 A2105A-S) mentions the foam surround deteriorating with age, a common failure mode for drivers of this period. No period reviews from major publications have surfaced, and no corroborating measurements beyond the single database source are known.
- Type: 3-way, 4-speaker, bass reflex, floor-standing
- Drivers: 2 × 20 cm cone woofers, 12.5 cm cone midrange, 2.5 cm titanium-dome tweeter
- Crossover: 300 Hz / 3 kHz
- Impedance: 6 Ω
- Sensitivity: 91 dB/2.83V/m
- Frequency response: 30 Hz – 22 kHz
- Power handling: 100W RMS
- Dimensions: 273 × 1,130 × 342 mm (W×H×D)
- Weight: 24.0 kg
- Price: ¥88,000 (1 unit, c. 2000)
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