Monoprice has been very active in the speaker and subwoofer categories over the past year with a number of new product introductions under their Mononlith brand (see links at the end of this article). Their latest entries are the THX Certified THX-275IW and THX-465IW in-wall speakers.
Tip: These speakers should be a great complement to Monoprice’s recently announced M-IWSUB8 and M-IWSUB82 In-Wall Subwoofers.
Features Shared by Both Speakers
- THX Certification: This speaker line has been submitted and passed THX standards for application and performance. The THX-275IW is THX Select Certified (Suitable for rooms up to 2,000 cubic feet in size) while the THX-465IW is THX Ultra Certified (Suitable for rooms up to 3,000 cubic feet in size).
- Speaker Design: Both speakers incorporate a 3-way design (tweeter, midrange, woofer).
- Impedance: Both speakers have a 4-ohm impedance. Make sure your amplifier or receiver can double its power output into 4 ohms.
- Connections: Each speaker has a set of spring‑loaded binding posts.
- Easy Install: The heavy‑duty dog-ear mounting system makes for a fast and problem-free installation. The magnetically detachable grille is powder coated in white and can be painted to match any decor
Tip: Monolith™ THX® Certified in‑wall and in‑room speakers use the same driver and crossover components. This means you can mix and match Monolith THX-certified speakers to suit any room. Using Monolith THX in‑wall and in-room speakers for the left, center, right, and, rear channels in a home theater will still be timbre matched.
Monolith THX-275IW
- Product Number: 42830
- Tweeter: 1x 25mm silk dome with neodymium magnet
- Mid-range: 1x 50mm silk dome
- Woofer: 1 x 6.5″ long fiber pulp cones with NBR surrounds
- Grill Color: White
- Frequency Response: 43Hz to 20kHz ±3dB
- Sensitivity: 87.6dB (2.83V/1m)
- Low-Frequency Crossover: 550Hz @6dB/oct
- Midrange Crossover: 550Hz to 3.1kHz @12dB/oct
- High-Frequency Crossover: 3.1kHz @12dB/oct
- Amplifier Power Range: 50 to 300 watts
- Dimensions (HxWxD): 16.5″ x 11.1″ x 3.7″ (419 x 281 x 94 mm)
- Weight: 11 lbs. (5.0 kg)
Monolith THX-465IW
- Product Number: 42829
- Tweeter: 1x 25mm silk dome with neodymium magnet
- Mid-range: 1x 50mm silk dome
- Woofer: 4x 6.5″ long fiber pulp cones with NBR surrounds
- Grill Color: White
- Frequency Response: 37Hz to 20kHz ±3dB
- Sensitivity: 88.0dB (2.83V/1m)
- Low-Frequency Crossover: 750Hz @6dB/oct
- Midrange Crossover: 750Hz to 3.4kHz @12dB/oct
- High-Frequency Crossover: 3.4kHz @18dB/oct
- Amplifier Power Range: 50 to 450 watts
- Dimensions: Dimensions (HxWxD) 36.3″ x 11.1″ x 3.7″ (921 x 281 x 94 mm)
- Weight: 26.9 lbs. (12.2 kg)
Price & Availability
- THX-275IW (Product Number: 42830) – $349.99 at Monoprice.com
- THX-465IW (Product Number: 42829) – $699.99 at Monoprice.com
Tip: If you don’t have experience installing in-wall speakers, you should consult a home theater installer.
Related Reading:
Tip: If you need an amplifier(s) to go with your speakers, check out:
