Monoprice

Monoprice 143154 Monolith Encore C5 Center Channel Speaker

The Monolith Encore C5 center channel speaker pairs a waveguide-loaded silk dome tweeter with dual 5.25" woofers for clear, expansive dialogue.

$186.78*
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Monoprice Monolith Encore C5 is a passive center channel speaker built around a 20mm silk dome tweeter mounted inside a purpose-designed waveguide. This waveguide isn't just cosmetic — it controls the tweeter's dispersion pattern so high frequencies reach a wider listening area, which is especially valuable in a center channel where multiple viewers need to hear clear dialogue from different seating positions. Flanking the tweeter are two 5.25-inch woofers engineered for a balance of low mass and high rigidity, allowing them to reproduce midrange vocal detail and deliver quick, controlled bass.

The cabinet itself is constructed from MDF with thick internal bracing, a design approach that suppresses the panel resonances responsible for muddy or colored sound in lesser enclosures. Inside, a carefully designed crossover network divides the audio signal between the tweeter and woofers to maintain a flat frequency response across the speaker's range. Connection is handled through 5-way binding posts on the rear panel, accommodating bare wire, banana plugs, and spade connectors. As a passive speaker, the Encore C5 requires an external amplifier or AV receiver, giving users control over their amplification choice.

Key Features

Tweeter Waveguide: Better imaging. Distinctive look. A 20mm silk dome tweeter sits inside a large, customized waveguide for better dispersion, a wider sweet spot for stereo listening, and spectacular imaging. The distinctive waveguide enhances tweeter performance and gives the speaker a sleek appearance in any room.

Two 5.25" Woofers: Quality midrange and bass begins with quality drivers. Each Encore series woofer has been designed to be both lightweight and rigid for midrange transparency and quick, punchy bass.

MDF Cabinet with Internal Bracing: Premium construction. Zero sound coloration. Sturdy, well constructed MDF cabinets wrapped in a premium vinyl finish are built with thick internal bracing that suppresses unwanted cabinet resonances that may color the sound.

Sophisticated Crossover Network: Accurate response. Harmonious drivers. Each Encore series speaker features a crossover network designed to deliver a flat frequency response and ensures each driver is working harmoniously to deliver an accurate, detailed soundstage.

Connectivity: Each Encore speaker uses 5 way binding posts for a quick and easy connectivity.

Specifications

Brand
Monoprice
Model
143154
Speaker Type
Center Channel
Tweeter
20mm Silk Dome with Waveguide
Woofers
Two 5.25"
Cabinet Material
MDF with Internal Bracing
Crossover
Sophisticated Crossover Network
Connectivity
5-Way Binding Posts

Pros & Cons

👍 Pros

  • Custom waveguide widens the sweet spot and improves stereo imaging beyond typical center channels
  • Internally braced MDF cabinet reduces resonance and sound coloration
  • Dual 5.25" woofers provide solid midrange presence for clear dialogue
  • Sophisticated crossover network delivers flat, accurate frequency response
  • 5-way binding posts offer flexible speaker wire connection options

👎 Cons

  • Passive design requires a separate amplifier or AV receiver to operate
  • Dual-woofer center channel is wider than some entertainment center shelves
  • No magnetic shielding mentioned for placement near older CRT displays
  • Limited finish options compared to higher-end center channel speakers

Frequently Asked Questions

It uses a 20mm silk dome tweeter seated inside a custom waveguide, which improves high-frequency dispersion and widens the listening sweet spot.
The speaker uses 5-way binding posts, which accept bare wire, banana plugs, spade connectors, and pin connectors.
The cabinet is built from MDF with thick internal bracing. This construction minimizes unwanted resonances that can color or muddy the sound.
Yes. This is a passive speaker, so it needs to be powered by an external AV receiver or amplifier.
The Encore C5 has two 5.25-inch woofers designed for midrange clarity and punchy bass response.