Mackie CR4.5: Bigger Woofer, Deeper Sound, Same Do-It-All Design

The Mackie CR4.5 is a pair of 4.5-inch powered studio monitors built for listeners who want more low-end authority than a compact 3-inch set can give while keeping the same versatile, tone-shaping design. A 4.5-inch woven woofer and a 1-inch silk-dome tweeter, driven by 50 watts of Class A/B power, reach down to a -10 dB point of 55 Hz and peak at 101 dB SPL, so bass-heavy music, film, and games land with real weight. With a sound-shaping tone control and TRS, RCA, and 3.5 mm inputs on board, it is the step-up creative reference pair for a desk that needs to fill a little more room.

More Cone Area, More Low-End Reach

The jump from 3.5 to 4.5 inches of woofer is not cosmetic: the larger cone moves more air, extending usable low frequencies to a -10 dB point of 55 Hz versus the CR3.5's 60 Hz, and pushing peak output to 101 dB. That extra headroom and reach matter for electronic and hip-hop production, cinematic gaming, and anyone who wants the kick and bass to feel physical rather than implied — all without a subwoofer, though a CR-series sub can still be added when you want the bottom octave.

The Tone Control: Reference Flat to Party Loud

Like every CR-series monitor, the CR4.5 hinges on its front-panel tone knob. Turned fully counter-clockwise, the response is flat and transparent — the honest reference you need to track and mix. Turned clockwise, the curve gradually boosts bass and treble into an exciting "smiley face" voicing for casual listening, movies, and gaming, with a balanced blend at the 12 o'clock center. One knob turns a studio tool into a home-entertainment speaker and back again.

50 Watts, Two Drivers, One Clean Handoff

The CR4.5 runs 50 watts RMS of bi-amplified Class A/B power across its two transducers. The 4.5-inch woven woofer handles the lows and low-mids, the 1-inch silk-dome tweeter with protective grille carries the highs to 20 kHz, and a 3.0 kHz crossover splits the signal cleanly between them. A solid MDF enclosure with a custom-tuned rear port keeps the cabinet quiet and the bass tight, so the extra output stays controlled instead of boomy.

Connect Everything, Place It Anywhere

Balanced/unbalanced 1/4-inch TRS, unbalanced RCA, and a 1/8-inch (3.5 mm) stereo input all stay active at once and sum together, so an interface, a turntable, and a laptop can share the speakers without re-patching. A front-panel headphone output mutes the monitors for private listening, a rear location switch tunes the sound for desktop or bookshelf placement, and a powered-speaker position select switch puts the active cabinet — and its controls — on whichever side you prefer.

Who the CR4.5 Is For

Producers working in bass-forward genres, gamers who want cinematic low-end, and creators who need one accurate-yet-fun pair for a larger desk or a small room reach for the CR4.5 when the 3.5-inch model feels too polite. It slots straight into a Mackie interface or mixer setup, references honestly with the tone knob left, and turns into a room-filling entertainment system when you turn it right — a genuine do-everything monitor with the woofer to back it up.