Round in-ceiling loudspeaker with 6 1/2-inch driver.

9 5/8" Diameter
24.45cm Diameter



Available Finishes:
Additional Images

Practically Invisible In-Ceiling Loundspeaker

To perform well with a budget in mind is to perform well, indeed. This practically invisible in-ceiling speaker is your introduction to the world of stealth audio; with superior components for performance the critics consider top-flight in its class. Built to satisfy the need for clutter-free audio, interior design savvy and audiophile performance standards, Vanishing® RT speakers are the best sounding entry-level in-ceiling & in-wall speakers Polk has ever made.

Vanishing 620-RT Features:

Vanishing Series RT speakers are timbre-matched to Polk RTi speakers to insure utterly seamless blending from speaker to speaker in systems that combine traditional and built-in speakers.

Superior imaging and clear, lifelike detail is revealed by the responsive silk dome tweeter in Vanishing RT speakers; it’s set in a 15-degree swivel housing, for more direct high frequency control, excellent off-axis imaging and more placement flexibility.

Vanishing Series built-in speakers feature our exclusive wafer-thin Sheer-Grille, a magnetically-secured grille that protrudes only 7mm from its surroundings. Sheer-Grilles have nearly transparent, ultra-small perfs, and are acoustically inert, for dynamic, unimpeded sound and more uniform coverage, even in larger rooms.

Painted to match your decor, Vanishing Series built-in speakers are virtually indistinguishable from their surroundings.

Easy one-cut, drop-in installation puts built-in audio within reach, with Perfect Fit templates, a precision flange, and (available) pre-construction brackets; achieve secure, vibration-free efficiency with a simple turn of the patented Rotating Cam system.

All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.

Driver Complement

Diameter3/4" (1.91cm) 
TypeDynamic Balance silk/polymer composite dome 
Mid / Woofer
Diameter6 1/2" (16.51cm) 
TypeDynamic Balance polymer composite cone with rubber surround 


Total Frequency Response35Hz-25kHz 
Upper -3dB Limit23 kHz
Lower -3dB Limit52 Hz
Nominal Impedance8 ohms
Efficiency89 dB
Recommended Amplifier Power10-100 watts per channel
InputsGold-plated spring-loaded posts 


Cut-Out Diameter8 3/16" (20.80cm) 
Overall Diameter9 5/8" (24.45cm) 
Mounting Depth (includes 1/2" drywall)3 3/4" (9.53cm) 
Pre-Construction BracketPB LC60i 
Overall Depth4 1/4" (10.79cm) 


Unit of Measureeach 
Total Shipping Weight5.64 pounds


Speaker WarrantyLifetime 

Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

620-RT Media

620-RT Accessories

PB LC60i

PB LC60i

$49.95 each

Works with Vanishing Series 900-LS, 90-RT, 620-RT and TCi Series TC60i, TC620i