RSL CG23M Review: A Compact MTM Speaker Built for Flexible Systems

Introduction

The RSL CG23M is the kind of speaker that makes a convincing case for buying two instead of one. It uses an MTM layout, which places a tweeter between two midrange drivers, and that arrangement gives it unusual flexibility: stand it upright and it works as a left or right channel, lay it on its side and it becomes a center channel. At $149 each, or roughly $300 for a pair, it lands in the same conversation as some well-known budget bookshelf models, but the design choices here are different enough to be worth a closer look. This review covers what the CG23M does well, where it asks for compromise, and who should consider it.

Who this product is for

This is a good fit for someone building a modest home theater in a living room who wants clear dialogue and a stable center image without spending a lot, and who either already owns a subwoofer or plans to add one. The cabinet is compact enough for a shelf or a stand, and threaded inserts on the back allow wall mounting. It also suits listeners who want to run a pair as left and right channels and skip a dedicated center speaker entirely.

If your priority is deep bass from a single pair of speakers with no subwoofer, the CG23M is not the right starting point. Its low-frequency response rolls off around 80 Hz, which is an honest statement of what it is: a speaker designed to hand the bottom octaves to something else.

Main strengths

Soundstage and Imaging

Across roughly a month of television and film duty, the center image stayed locked in place. The front baffle appears to act as a waveguide for the driver array, and the result is a broad, even throw that keeps voices anchored to the middle of the screen. Dialogue never sounded veiled or buried, even before a center channel was added to the setup, which is rare at this price. In film mixes with effects moving across the front stage, the presentation held together, and for stereo music the imaging is a genuine strength, with a character that recalls three-way concentric designs.

Bass and Midrange Performance

Bass is clean and textured rather than deep. On punchy material the speaker delivers a tight, well-separated low end, and notes stay distinct instead of smearing together. What it will not do is pressurize a room on its own. The 80 Hz roll-off means a subwoofer is the right partner for music listening, even in a small room. The midrange is neutral and accurate: vocals come through delicate and uncoloured, acoustic guitar sounds plucky and clean, and nothing sits too thick or too thin in the mix.

Treble and Detail

For a soft dome tweeter, the sense of air here is exceptional. Vocal vibrato and acoustic instrument overtones come through clearly, and percussion is handled with real accuracy. The one recurring caveat is cymbals: the initial attack can sound slightly brief or unnatural, and at times the high-frequency texture takes on a faint white-noise quality. It reads as a small distraction rather than a flaw, and at this price it is easy to accept, especially given how much the speaker gets right elsewhere. Instrument separation is a standout, with individual parts staying distinct even in busy arrangements.

Things to consider before buying

Placement and Room Integration

Two slot ports on the front baffle feed an internal path that behaves a little like a maze before air leaves the cabinet, which is part of why the bass sounds as controlled as it does. Front-facing ports also mean the speaker tolerates being placed closer to a wall than a rear-ported design would, and it tends to benefit from that positioning. Threaded inserts on the rear panel allow wall mounting if shelf space is tight.

Amplification and Setup

With a sensitivity of 89 dB, the CG23M does not demand a lot of power to reach satisfying volume. A capable receiver or integrated amplifier is enough. The speaker also responds well to modest equalisation: a small bass lift and a slight trim in the midrange moves it toward a more energetic balance for listeners who prefer that. Treat any EQ as a preference rather than a requirement.

Buying advice

At $149 each, the CG23M is fairly priced, and the value improves when it is bought as a pair or bundled with a subwoofer, since bundles carry a larger discount. The direct-sales model includes a 30-day in-home trial and no restocking fees, which lowers the risk of trying a speaker you cannot hear in a store first. Customer service has a strong reputation, and that matters when buying direct.

Conclusion

The RSL CG23M is a compact, flexible speaker that gets the hard parts right. Its imaging and center-image stability are excellent, its midrange is neutral, and its bass is clean if limited. Add a subwoofer and it becomes a convincing small home theater and music system. Buy it as a pair for stereo, or as a center channel to anchor a modest surround setup, and it will reward the decision.