Alum field-stabilizing ring inside magnet assembly
Heavy-duty black fiber glass voice coil bobbin
Large motor system with 1¼" voice coil diameter and 90 mm magnet
The 6.5 transducers Quantum Series 6.5"(4 ohm) was designed for demanding bass and midrange applications. It works equally well for hi-fi level car audio.
Features:
1. Alum field-stabilizing ring inside magnet assembly for reduced high-level distortion
2. Vented voice coil former for reduced distortion and compression
3. New vented chassis for lower air flow speed reducing audible distortion
4. Heavy-duty black fiber glass voice coil bobbin to increase power handling and reduce mechanical losses resulting in better dynamic performance and low-level details
5. Large motor system with 1¼" voice coil diameter and 90 mm magnet for better control, power handling, and efficiency
6. Black magnet parts for better heat transfer to increase power handling
7. Linear suspension with specially designed Conex damper (spider) for long durability under extreme operating conditions
8. Gold plated terminals to ensure long-term trouble free connection
Nominal Specifications
Note 1 Measured in infinite baffle.
Note 2 Tested in free air (no cabinet).
Note 3 Measured using a semi-constant current source,nominal level 2 mA.
Note 4 Measured at 20 deg. C
Note 5 Measured at 25 deg. C
SPL & impedance response
Measuring conditions, SPL
Driver mounting: Flush in infinite baffle, back side open (no cabinet)
Microphone distance: 1.0 m
Input level: 2.83 VRMS
Smoothing: 1/6 oct.
Measuring conditions, impedance Driver
Mounting: Free air, no baffle, back side open (no cabinet)
Input signal: Semi-current-drive, nominal current 2 mA
Smoothing: None