Q Install QI65C ST Stereo In Ceiling Speaker (Single)

Best-Selling Q Acoustics Single-Stereo Speaker with Square or Round Grille Options
Grille Type: Circle

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Specifications of the Q Install QI65C ST Stereo In Ceiling Speaker (Single)

  • Weight (Kg) 1.200000
  • Brand Q Acoustics
  • Warranty 5 Years
  • Cut-out Dimensions 232mm diameter
  • Mounting Depth from Surface 84mm
  • Sensitivity (1W@1M) Sensitivity dB spl (2.83V, 1m): 86
  • Frequency Response Response(Low freq.) -3dB Hz: 75
  • Power Handling (RMS) 15-60W
  • Speaker Depth Slim (100mm & Under)
  • Speaker Size 6-6.5"
  • Product Type Single Stereo

At Smart Home Sounds we pride ourselves on customer satisfaction and would like our customers to be 100% happy with their purchase.

We offer 30-day hassle-free returns and personalised service from real-life people. If an item doesn't meet your expectations, simply return your item to us in its original condition and packaging within 30 days for a full refund or exchange. 


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QI 65C ST/ QI 65S ST Single Stereo In-Ceiling Speaker (Single)

QI 65C ST/ QI 65S ST Single Stereo In-Ceiling Speaker (Single)

With a thin bezel and grille design, the QI 65C ST/ QI65S ST single-stereo speaker is the perfect option for discreet home audio. With a moisture-proof rating, the QI 65C ST/ QI65S ST is a great solution for a small bathroom or other room where you can’t fit a stereo pair of speakers in the ceiling.

  • Passive Single-Stereo In-Ceiling Speaker
  • Capable of producing a stereo soundstage from a single speaker unit
  • 6.5” polypropylene cone for crisp and clear audio quality
  • Adjustable High Frequency Output Level
  • Discreet magnetic grille
  • Slim 84mm Mounting Depth
  • Circular and Square Grille Options Available

Great, Single-Stereo Audio

Great, Single-Stereo Audio

Based on the best-selling QI 65, the QI 65C ST/ QI 65S ST features two internal drivers to offer full stereo sound in spaces that are too tight to fit a pair of in-ceiling speakers.

Dual tweeters separate out left and right meaning you won’t miss out on any of the audio you play. The QI65C ST/ QI65S ST is perfect for a smaller room like a bathroom or study where you want to listen to great music, but don’t have the space to install multiple speakers.

Easy Installation

Easy Installation

The Q Install QI 65C ST/ QI65S ST is simple to install with built-in binding posts & has a magnetic grille that clips on easily. Both a Square and Circular Grille are available.

The QI 65C ST/ QI65S ST is also moisture resistant so can be used in a bathroom if positioned away from a water source. The grille geometry has been carefully optimised to create the perfect balance between sound and a discreet appearance.

Important Information
Cut-out diameter - 203mm (7.99 inches)
Grille diameter - 232mm (9.13 inches) Square Grille size - 232mm x 232mm (9.13inches x 9.13inches)
Mounting depth - 84mm (3.31 inches)

How To Power

How To Power

The QI 65C ST/ QI65S ST requires an amplifier and Q Install recommends an amplifier power of between 15-60 watts

Our recommended pairing is with the Sonos Amp for easy set-up and wireless music control.

Connect via 2-core speaker cable, you will need two lengths (or one length of 4-core) as this is a single-stereo speaker with two internal drivers. Our recommended cable for runs under 35m is the 16 gauge 2 core speaker cable.


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Return your order hassle free within 30 days for a full refund. 100% satisfaction.


Speak with an expert

Call 0800 677 1100 or chat with us online for help creating your ideal setup.