Applications

- These 6.5”ultimate sounding quality Bass-Midrange drivers have been designed to match advanced studio monitoring requirements for proximity monitoring
- The exceptional sound accuracy of these units results from a careful design using A/B listening tests to select technological solutions
- It is this which authorizes their use up to 2.5kHz without any compromise, and up to 4.0kHz with full preservation of dynamic behavior (Compromise is on directivity pattern only)
- Optimum Bass-Reflex loading is situated between 12L and 16L
tuned from 45Hz to 40Hz


Design Concept
Deflection Controlled Diaphram
- Optimized for dynamic damping
- Deflection Controlled Diaphragm technology consists in optimizing the shape and material of the diaphragm so that it works as a mechanical transmission line, to avoid breaking modes as well as mechanical threshold which destroy sound quality
- It is this leading edge technology which offers substantial sonic advantages
- Those advantages include sound coherency, fast transients, stable sound imaging, high sensitivity, wide frequency range and reduced directivity pattern

Soft Excursion Limiting
- The Soft Excursion Limiting mechanism is a special S-profile design of the rubber surround avoiding voice-coil bottoming which destroys driver functionality instantaneously
- The cone excursion is progressively limited to +/- 8mm, introducing a soft clipping which totally protects loudspeakers from over-excursion damage

Compact Magnet System
- Its design has been specially optimized to obtain maximum transducing efficiency while avoiding unlinear behaviour such as coil inductance variation with position, flux modulation, harmonic distortion, rest position offset, air compression and off-axis voice-coil pushing
- Its design incorporates a T-shaped pole piece and a flux stabilization ring
- It also takes into consideration demagnetization at cold temperatures

Intercooler System
- Entirely integrated into the loudspeaker itself, the Intercooler System extracts the heat produced by the Joule effect in the voice-coil
- It does so via an air flow directed through the heatsink rims of the basket by the motion of the dust-cap and the spider
- The gain brought about by this technology is over 20% of extra power, so for example, a 3" coil according to this design has the same power handling capacity as a classical 4" one


Features
- Power handling capacity - 100W ABS
- Reference Efficiency (1W @ 1m) - 93 dB SPL
- SPL max (continuous) - 109 dB SPL
- Usable frequency range - 50-4000 Hz
- Environmental withstanding - Outdoor✚


Architectural Specifications
- Nominal Diameter - 166mm
- Frame - High tensile alloy pressure die-cast basket with patented Intercooler System
- Magnet System - 1.5" highly energized, heat extracting design with flux stabilizing ring
- Voice Coil - High-temperature stabilized copper-clad aluminium ribbon wound on vented high-strength glass polyimide
- Cone Assembly - High-strength cellulose fiber cone impregnated and coated on both sides with damped resins, fitted with fabric dome, high-speed flat, damped surround and acoustically damped rear cavity
- Speaker Mass - 2.15kg


Typical Characteristics

		1220	1230
Rated Impedence	Z	8	4	Ω
Reference Efficiency (1W @ 1m)	-	93	93	dB SPL
Usable Frequency Range 1	-	50-4000	50-4000	Hz
Power Handling Capacity 2 (AES)	-	100	100	W
Max Sound Pressure Level 3	SPL max	109	109	dB SPL
Min. Impedence modulus	Z min	3.6 @ 360Hz	13.5 @ 360Hz	Ω
Voice-coil Inductance 4 @ 1 kHz	L e1k	0.64	1.33	mH
@ 10 kHz	L e10k	0.23	0.46	mH
BI product	BI	8.30	11.90	N/A
Moving Mass	M ms	0.012	0.012	Kg