225.0175.0290.0
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Interactive 3D model of Passive Studio Monitor Enclosure

Brackets and mounts

Passive Studio Monitor Enclosure

1 views
Bounding box
175.0 × 225.0 × 290.0 mm
Engine
Precision B-rep
Parameters
19
Published
November 2, 2026

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The prompt

Here is the Text-to-CAD prompt for the passive companion monitor. Since this is the passive unit, this prompt removes the side control knob and swaps out the massive rear amplifier cavity for a smaller, standard terminal cup cutout to wire it to the active unit. **Text-to-CAD Prompt:** > A rectangular passive studio monitor enclosure with exact outer dimensions of 285mm height, 175mm width, and 225mm depth, featuring a material shell thickness of 15mm. The front baffle features a 10mm radius fillet on all outer edges. The front face includes four specific cutouts: a 45mm diameter circular cutout centered horizontally at 220mm from the bottom edge for a tweeter; a 120mm diameter circular cutout centered horizontally at 110mm from the bottom edge for a 5-inch woofer; and two 25mm diameter circular cutouts positioned 35mm from the bottom edge and spaced exactly 90mm apart for front-firing bass reflex ports. Both the left and right side panels are entirely solid with no cutouts. The rear face features a smaller 75mm width by 50mm height rectangular cutout, recessed by 3mm and centered horizontally at 60mm from the bottom edge, designed to house a standard speaker wire terminal cup. The bottom face includes four 15mm diameter, 5mm tall cylindrical extrusions positioned exactly 20mm inward from each corner to serve as mounting points for rubber feet. > **Measurement Changes from the Active Unit:** * **Side Knob:** Completely removed (solid left and right side panels). * **Rear Cutout:** Reduced from the large 250mm x 145mm amp cavity to a compact 75mm x 50mm terminal cup cutout for speaker wire binding posts. * **Front Baffle & Dimensions:** Identical to ensure the pair perfectly matches.

Parameters

NameValueRange
Enclosure Width175 mm100 – 400
Enclosure Depth225 mm100 – 400
Enclosure Height285 mm100 – 500
Shell Thickness15 mm1 – 30
Tweeter Diameter45 mm10 – 100
Tweeter Z from Bottom220 mm1 – 400
Woofer Diameter120 mm50 – 200
Woofer Z from Bottom110 mm1 – 400
Bass Port Diameter25 mm5 – 80
Bass Port Z from Bottom35 mm1 – 200
Bass Port Spacing90 mm10 – 160
Rear Cutout Width75 mm20 – 160
Rear Cutout Height50 mm20 – 150
Rear Cutout Recess3 mm1 – 10
Rear Cutout Z from Bottom60 mm1 – 250
Foot Diameter15 mm5 – 30
Foot Height5 mm1 – 15
Foot Inset20 mm5 – 50
Fillet Radius10 mm0.1 – 10

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

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Passive Studio Monitor Enclosure - Free CAD Model (STEP, STL) | TextoCAD