Built-In Passband Filter; Speaker Input Select Switch - Kenwood TS-890S In-Depth Manual

Built-in Passband Filter

The built-in passband filters, which are also popular on the SP-990, are designed with optimized values for the full-range
speaker. High-cut and low-cut filters are installed, and the optimal filters can be selected according to the mode, such as
SSB or CW operation. Doing so allows frequency characteristics suited for a wide range of uses to be obtained.
The charts below show the frequency characteristics.

Speaker Input Select Switch

The speaker has two speaker input terminals, A and B. When two transceivers are connected to the speaker, the sound
source can be toggled on the front panel. This also applies to connecting a set of headphones.
Fig. 98 Filter Switch (Front Panel)
Fig. 99 Characteristics of High-Cut Filters and Low-Cut Filters
Fig. 100 Input Select (A/B) Switch (Front Panel)
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