Kenwood SP-31 External Speaker For The Kenwood HF TRANSCEIVER Used

Description

Selling for my grandmother who is a HAM radio fanatic but no longer has the time to enjoy it. The speaker works great.
The
Kenwood SP-31
is a high quality external speaker with audio filtration. It is 8 ohms, can handle up to 2 watts and has a normal frequency response of 160 Hz to 7 kHz. This speaker may be used with virtually any communications receiver or transceiver. The SP-31 features a 4 inch (10 cm) speaker in a metal enclosure. The switch in the upper the right corner can select from two audio input sources. The three switches on the lower right activate two high (HIGH 1, HIGH 2) cut and one low (LOW) cut audio filters. This allows you to tailor the frequency response of the speaker system. Click here to see
diagram
.
With both HIGH 1 and LOW filters the passband width is from 400 to 3000 Hz
With both HIGH 2 and LOW filters the passband width is from 400 to 1200 Hz
With both HIGH 1, HIGH 2 and LOW filters the passband width is from 400 to 900 Hz
By narrowing the bandwidth of the audio stage, the noise component of the signal can be reduced.
This speaker also has a standard 1/4 inch headphone jack on the front panel of the speaker and a Line Output Jack on the
back panel
(to feed a recorder, RTTY unit, etc.). These convenient output jacks are post filtration. The input posts are spring-loaded terminals. An
audio cable
(bare wire to plug) is provided. This speaker filter is 7.2 x 4.7 x 12.3 inches 4.4 lbs. (180x120x310mm 2kg). The front panel may elevated by the extending the front feet with supplied feet extenders.