The CDS6 S3 is a dedicated surround speaker and is an in-wall version of the on-wall DS6 S3. Surround speakers generally fall into two main types – those that one might describe as normal speakers - so-called monopoles, where the sound comes from a set of drive units mounted on the front of the enclosure - and those that give a more diffuse sound field, such as dipoles. Each type has its advantages.

Description	2-way closed-box selectable dipole/monopole surround system
Dimensions	Height: 249mm (9.8 in) Width: 380mm (15 in) Depth: 153mm (6 in)
Net Weight	5.2kg (11.5 lb)
Freq. Response	85Hz – 22kHz ±3dB on reference axis (monopole mode) 85Hz – 10kHz ±3dB power averaged over front hemisphere (dipole mode)
Freq. Range	-6dB at 63Hz and 42kHz (monopole mode) -6dB at 63Hz and 15kHz (dipole mode)
Sensitivity	89dB spl (2.83V, 1m)
Normal Impedance	8§Ù (minimum 3.3§Ù)
Power Handling	25W – 100W into 8§Ù on unclipped programme
Drive Units	Unit 1: ø130mm (5 in) woven Kevlar® cone bass / midrange Unit 2: 2x ø80mm (3 in) midrange / high frequency Unit 3: ø25mm (1 in) alloy dome high-frequency
Finish	Cabinet: Black or white Grille: Black or white cloth
Dispersion	Description: Dipole mode: horizontal figure of eight Effective null zone ±20º (250Hz – 15kHz) Monopole mode: within 2dB of reference response Horizontal: over 40º arc Vertical: over 10º arc
Harmonic Distortion	2nd and 3rd harmonics (90dB, 1m) <1% 130Hz – 20kHz
Crossover Frequency	250Hz (dipole mode) 4kHz (monopole mode)
Max. Recommended Cable Impedance	0.1§Ù