Instruction/ maintenance manual of the product C 320 Yamaha
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POWER AMPLIFIER Owner’s Manual Mode d’emploi Bedienungsanleitung Manual de instrucciónes TEMP PROTECTION POWER ON OFF AB CLIP SIGNAL M.
Intr oduction Thank you for purchasing a Yamaha C450/320/160 series power amplifier. This series of audio amps was developed from Yamaha's wealth of experience in building PA equipment and its tradition of careful attention to every detail of circuit design.
Precautions 1. Avoid excessive heat, humidity, dust and vibration. Keep the unit away from locations where it is likely to be exposed to high temperatures or humidity — such as near radiators, stoves, etc. Also avoid locations which are subject to excessive dust accumulation or vibration which could cause mechanical damage.
2 Contr ols and Functions ■ F r ont P anel TEMP PROTECTION POWER ON OFF AB CLIP SIGNAL 1 23 4 5 1 POWER switch and indicator This is the main POWER switch. Press to power ON the amplifier. Press again to power OFF. The POWER indicator lights up when the amplifier is powered ON.
3 ■ Rear P anel SPEAKERS CHANNEL B CHANNEL A INPUT CHANNEL B CHANNEL A GG (BRIDGE) (PARALLEL) BRIDGE STEREO BRIDGE STEREO 4 3 2 5 CHANNEL B CHANNEL A ∞ 0 40 30 20 15 10 3 6 25 –dB ∞ 0 40 30 20 15 10 3 6 25 –dB 1 PARALLEL 4 SPEAKERS terminals For polarity in each mode, refer to the following diagram.
4 ■ Modes: STEREO/P ARALLEL/BRIDGE BRIDGE mode In this mode, the CHANNEL A input signal will be output from the BRIDGE output terminals. In this case, use the front panel (channel) A volume control to adjust the volume. ■ SPEAKER IMPED ANCE In STEREO and PARALLEL modes, the minimum load (=speaker) impedance is 4 Ω .
5 Caution for Speaker Connection 1. Turn off the POWER switch. 2. Remove the cover attachment screw(s) and remove the protective cover from the speaker terminals.
6 Rack Mounting ■ Mounting in an EIA standar d rac k If multiple high-power amp units are mounted in a rack with poor ventilation, the heat from the amps will cause the interior of the amp to become very hot, causing the performance of the amps to be impaired.
7 ■ P ortable Rack Mounting The amplifier intakes cool air through the front panel and exhausts warm air out the rear panel. When mounting amplifiers in a portable rack, make sure the rear panel is completely open for ventilation.
8 Specifications ■ Gener al Specifications C450 C320 C160 Power Output Level (Rated Power) 8 Ω /STEREO 460 W + 460 W 340 W + 340 W 160 W + 160 W 20 Hz~20 kHz 4 Ω /STEREO 620 W + 620 W 440 W + 440 W 200 W + 200 W 0.05% 8 Ω /BRIDGE 1240 W 880 W 400 W 1 kHz 8 Ω /STEREO 520 W + 520 W 370 W + 370 W 175 W + 175 W 0.
9 ■ Block Diagr am Temperature CHANNEL B CHANNEL A CLIP CLIP SIGNAL Bch Power Amp PC Limiter Ach Power Amp PC Limiter SPEAKERS (BRIDGE) (PARALLEL) CHANNEL A CHANNEL B CHANNEL B CHANNEL A INPUT PROTECTION TEMP (Heat Sink) Sensor Circuit Protection STEREO PARALLEL BRIDGE G G SIGNAL ■ Dimensions 15.
10 ■ P erformance Gr aphs Mode:STEREO Both ch Driven RL=4 Ω , f=1kHz Mode:STEREO Both ch Driven RL=4 Ω , f=1kHz Mode:STEREO Both ch Driven RL=4 Ω , f=1kHz C160 C320 C450 Output Power [W] Power.
An important point after buying a device Yamaha C 320 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Yamaha C 320 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Yamaha C 320 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Yamaha C 320 you will learn all the available features of the product, as well as information on its operation. The information that you get Yamaha C 320 will certainly help you make a decision on the purchase.
If you already are a holder of Yamaha C 320, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Yamaha C 320.
However, one of the most important roles played by the user manual is to help in solving problems with Yamaha C 320. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Yamaha C 320 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
