SONODYNE SIC 3261

Product overview

The SONODYNE SIC 3261 is a high performance 2 way dual concentric in-ceiling speaker with a rimless, magnetic grille, built for high sonic performance with music.

Its 6 inch coaxial speaker covers 50 Hz to 21 kHz (-10 dB) with a sensitivity of 93 dB (1 W, 1 m, half space) and reaches 107 dB at its rated power of 30 W. The SIC 3261 runs in both LMT and direct modes: four transformer taps for 100 V lines (3.8, 7.5, 15, 30 W) and 70 V lines (1.9, 3.75, 7.5, 15 W), or 8 Ω direct with 60 W power handling. It fixes into a 205 mm ceiling cut-out with a twist lock.

Key features

• 2 way dual concentric transducers: 1 x 6 inch coaxial speaker
• Both LMT and direct modes
• High sonic performance for music: 50 Hz - 21 kHz
• Rimless magnetic grille
• Twist lock fixing with four adjusting screws
• 100 V taps 3.8 / 7.5 / 15 / 30 W; 70 V taps 1.9 / 3.75 / 7.5 / 15 W
• 205 mm cut-out, 236 mm outer diameter, white

Dual concentric driver

The 6 inch coaxial speaker places both drivers on one axis. It covers 50 Hz to 21 kHz (-10 dB), with 93 dB sensitivity (1 W, 1 m, half space) and 107 dB SPL at the rated 30 W.

Rimless magnetic grille

The grille is held by magnets and has no visible rim. It is removed for installation and fitted back into the speaker afterwards, as the owner's manual shows.

LMT and direct modes

A line matching transformer gives four taps on a 5-pin push-type terminal at the rear: COM (black) plus green, yellow, blue and white wires for 1.9, 3.75, 7.5 and 15 W at 70 V, or 3.8, 7.5, 15 and 30 W at 100 V. In direct mode the speaker is 8 Ω with 60 W power handling. The owner's manual adds an impedance table per tap and a schematic.

Mounting with twist lock

The owner's manual describes the installation: make a 205 mm cut-out, connect COM and the chosen tap observing polarity, remove the magnetic grille, slide the speaker through the cut-out with the magnet facing upward, tighten the four adjusting screws so the dog-ears pull firmly against the ceiling (without over-tightening) and fit the grille back. Outer dimensions are 107 mm depth by 236 mm diameter; net weight is 1.5 kg.

In the box

• SIC 3261 in-ceiling speaker with magnetic grille

SONODYNE SIC 3261: frequently asked questions

Which power taps does the SIC 3261 have?

3.8, 7.5, 15 and 30 W on a 100 V line, and 1.9, 3.75, 7.5 and 15 W on a 70 V line.

Can it be driven directly at 8 Ω?

Yes. It works in both LMT and direct modes; in direct mode it is 8 Ω with 60 W power handling.

How is the grille fixed?

The rimless grille is magnetic: it is removed for installation and fitted back afterwards.

What cut-out does it need?

A 205 mm wall / ceiling cut-out. The speaker is 236 mm in diameter.

Where can I buy the SONODYNE SIC 3261 in India?

The SONODYNE SIC 3261 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.

Workflow 1: Restaurant music system

Restaurants and cafes playing music through the ceiling.

Connections

Setup

1. Make 205 mm cut-outs over the dining areas.
2. Connect COM and the chosen tap on each speaker.
3. Fit the speakers and put the magnetic grilles back.

Tip: SONODYNE shows the SIC 3261 in a restaurant ceiling.

Workflow 2: 70 V distributed systems

Installations running a 70 V speaker line.

Connections

Setup

1. Pick a tap for each speaker.
2. Add up the taps on the line.
3. Set the amplifier level.

Tip: The owner's manual lists the impedance of each tap.

Workflow 3: Direct 8 Ω music zones

Smaller music systems driven by a low impedance amplifier.

Connections

Setup

1. Connect the speaker in direct mode.
2. Keep the amplifier within the 60 W handling.
3. Check the level in the room.

Tip: Both LMT and direct modes are supported.

Workflow 4: Premium retail

Stores where the ceiling should look clean.

Connections

Setup

1. Place the speakers in the ceiling grid.
2. Connect and fix them with the twist lock.
3. Fit the rimless magnetic grilles.

Tip: The rimless grille sits flush in the ceiling.

Workflow 5: Hotel lobbies and lounges

Hospitality spaces with background music.

Connections

Setup

1. Space the speakers over the seating.
2. Choose taps for the level each area needs.
3. Fit the grilles.

Tip: 50 Hz - 21 kHz frequency range.

Workflow 6: Meeting and conference rooms

Rooms needing clear speech and music from the ceiling.

Connections

Setup

1. Make the 205 mm cut-outs.
2. Connect in LMT or direct mode.
3. Tighten the four adjusting screws without over-tightening.

Tip: 107 dB SPL at rated power.