Invisa Signature Point Source (SPS)


The Invisa Signature Point Source is intended for use as a main front left, right or center channel loudspeaker, as well as a side or rear surround, in high quality multi-channel home theater and music systems, as well as in simpler two channel systems of the highest quality. It presents a compact 28-3/16” x 8-9/16” fascia, and, of course, is of a proper depth (3-1/4” without optional backbox, 3-3/4” with) to allow it to easily fit, into a standard wall depth. Each Invisa SPS incorporates four 5-1/4” high-definition cast basket drivers, which are very similar to those found in the award-winning Triton Reference. The Invisa SPS also incorporates an extraordinary Triton Reference One Reference High-Velocity Folded Ribbon AMT Tweeter. The complex crossover network utilizes the special fully balanced topology incorporated in our upper range models, with a special polystyrene film capacitor on the high frequency section. The drivers are wired with special wire which has a unique twist that was engineered for highest performance.

The four 5-1/4” drivers are not identical, nor do they cover the same frequency range. In order to achieve a point source radiation pattern, with the dramatic benefits of better dispersion and improved imaging, the outer two drivers have their upper range limited to 500 Hz., while the two inner 5-1/4” drivers go all the way up to 3 kHz in order to meet and blend perfectly with the tweeter. All this is precisely accomplished by the complex balanced crossover network. Other small, but important details include: a switch to allow adjustment of the tweeter level, a magnetically attached low profile grille, non-resonant mineral-filled frame structure, special dogs to allow easy and secure attachment to the wall, and a rotatable tweeter to allow for correct orientation of the tweeter for vertical or horizontal positioning. There is a unique optional backbox available, that has been engineered with special EVA damping foam internally and open-cell foam externally to prevent bleed though of sound into the adjacent room.


Driver Complement

One Reference High-Velocity Folded Ribbon AMT Tweeter

Two 5.25" (13.33cm) High-Definition Cast-Basket Multi-Vaned Phase Plug (MVPP) Mid/Bass Drivers

Two 5.25" (13.33cm) High-Definition Cast-Basket Lower Mid/Bass Drivers

Efficiency 92dB 1W/1M @ 4Ω (2.83V/1M)
Frequency Response 34Hz–25kHz typical (-6dB on axis @ 37Hz, anechoic bass response)
Nominal Impedance
Recommended Amplification 20 - 350Wpc

Speaker: : 27.6" (70cm) H x 8" (20.2cm) W x 3.2" (8.25cm) D; with optional back box 3.75" (9.5cm)

Square Grille: 28.3" (71.59cm) H x 8.06" (21.74cm) W

Round Grille: n/a

Cutout: 26.55" (67.43cm) x 7.14" (18.25cm)

Weight Product: 14lbs (6.4kg); Shipping: 17lbs (7.7kg)