Turns out this was not the manual i was looking for. The concertmate 670 keyboard i have is a "Realistic" model made for Radio Shack and none of the diagrams on the owners manual i received matches up. HOWEVER, I must say the service Owners Manual provides was fast and efficient by being available online. The manual was in good readable condition and easily downloaded.
A Note on Power Handling
JBL Decade Series speakers are designed to produce reasonable volume levels with little amplifier power. However, the addition of a subwoofer and an amplifier will enhance the dynamic range of your system and help overcome the ambient noise in a moving vehicle. These speakers are designed to handle the power of a dedicated amplifier driven at or below its rated power. If an amplifier is driven far above its rated power, the output signal will �clip, and the additional power present � in a clipped signal can damage the speakers. Distorted or �fuzzy� sound from your speakers is an indication that the amplifier has exceeded its rated power and you should reduce the volume level.
93dB 2-15/16" (75mm) 6-1/16" x 8-3/4" (154mm x 223mm)
General Care
The loudspeaker grilles may be cleaned with a slightly damp cloth. Do not use any cleaners or solvents on the grilles or the speaker cones.
