This is an instruction document about the Yamaha KMS-301 speaker system. The document provides precautions for operating the speaker system, including avoiding distortion, using high-power amplifiers, cleaning and maintenance, avoiding exposure to sunlight and humidity, and ensuring stable placement and installation. It also explains how to connect the speaker system to an amplifier.
The Yamaha KMS-301 is a magnetic-shielding type full-range bass-reflex speaker system designed for use in a side-long way. The document details how to connect the push-type input terminals at the rear of the speakers to an amplifier, ensuring correct polarity and secure connections using commercially available cables.
It also covers placement guidelines, including mounting on walls or ceilings with suitable screws (5 mm diameter, 0.8 mm pitch) and precautions regarding magnetic interference with TVs. The manual includes specifications such as a nominal impedance of 4 ohms, sensitivity of 90 dB/W/m, and dimensions of 273 x 167 x 211 mm.
| Speaker Unit | 12 cm cone type (JA1234) |
|---|---|
| Sensitivity | 90 dB/W/m |
| Dimensions (WxHxD) | 273 x 167 x 211 mm |
| Weight | 3.0 kg per speaker |
Connect the left speaker to the left terminals and the right speaker to the right terminals, ensuring correct polarity (+/-) is not reversed.
Use a screw with a diameter of 5 mm and a pitch of 0.8 mm that can be fully inserted into the hole on the speaker.
Yes, it is a magnetic-shielding type, but you should still keep it apart from TVs to avoid potential picture interference.