2pcs Sonion 33AP007 BA Driver Balanced Armature Receiver DIY IEM Receivers

Please wire touch unit contacts for test before install it. Replacements or refund are not available once drivers been soldered.

Miniature magnetic receiver (balanced armature type) for use in Hearing Instruments and Advanced Audio applications. Sonion 3300 series, Parallel impedance is 12ohms, same as TF10 woofer series, but different model, different frequency. The low frequency is approx. 5DB higher than Knowles DTEC and 33a007 at 100Hz. But TF10 woofer BA is 5DB higher than 3300, And TF10 woofer BA drivers are 12 ohms in series. 3300 is connected in series 48ohms, so it is recommended to use in parallel Note please, there is a microhole in the pad of this driver, be careful not to block when soldering and installing Sonion 3300 series are the same as Knowles DTEC series. 33AJ007i/8 and 33AJ007i/9 have better bass than other models

– Extended bass by tuned back vent – Tandem, twin-motor performance – Ideal for use as a woofer in multi-way systems

Weight: 0.60 gr.
Case material: Ni80Fe15Mo5
Solder pad material: Sn96.5Ag3.0Cu0.5 Dimensions: Refer to outline drawin

Drivers sold by paired