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XT Series CI 8" Angled In-Ceiling Speaker


The "HT"version of the XTC8 features a fixed angle mounting of the tweeter and woofer in order to provide a massive improvement in performance for listeners who are farther away. This is the perfect choice for when a speaker must be mounted apart from where the listener will be standing, walking or sitting, like in a home theater. When being used as the front or center speaker in a home theater, the listener is typically around 10 feet or farther away, yet typical in-ceiling speakers point straight down placing the sweet spot directly in front of the screen. By angling the drivers toward the listener, a very noticeable increase in performance is realized. The same holds true in whole house music systems where speakers are often located farther away from where the listener spends most of their time. In situations like this, the angled "HT"models provide a very real, and very noticeable increase in performance.


Frequency Response

51 - 25,000 Hz ±3dB

Tweeter Dispersion (horizontal x vertical)

30 x 80 degrees

Recommended Amplifier Power

Range 50-300 Watts


91dB @2.83V/ 1 meter


4 ohms. Compatible with 8 ohms

Crossover Frequency

2,000 Hz

High Frequency Driver

FMT Transducer 1.27"x 2.4"(3.22cm x 6.09cm) Opening 4.5"x 2.75"(11.43cm x 6.98cm) Diaphragm

Crossover Type

2 way

Driver Configuration

1 x 1.27"x 2.75"FMT, 1 x 8"Woofers

Woofer Specifications

One 8"(20.32 cm) cast aluminum basket, black Kevlar with Nomex backer cone, Open back chamber format. Concave dust cap.

Cabinet Material

Black w/ White Paintable Grill


Push style


Custom air core coil inductors, polypropylene film capacitors in series and low DF electrolytic capacitors FMT thermal/current protection.

Max Power Handling

150 Watts


5.3 lbs. (2.4 kg) each

Dimensions (overall size)

12.68"x 7.15"(32.2 x 18.14cm)

Required Wall Opening (includes tolerance)

11.5"(29.1cm) diameter

Projection From Wall Surface


Depth Behind Wall Surface



Manuals & Technical Documents

SpecificationMartinLogan-XTC8-HT-Spec Sheet.pdf
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