Yamaha C450 Support and Manuals
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Owner's Manual - Page 2
... and barrier strip), and barrier strip for purchasing a Yamaha C450/320/160 series power amplifier. The wire which is coloured BLUE must be connected to the terminal which is coloured GREEN and YELLOW must be connected to heat generation. This owner's manual covers the three models C450, C320 and C160. In order to take full advantage...
Owner's Manual - Page 3
... the Housed Amplifier 7 Specifications 8 General Specifications 8 Block Diagram 9 Dimensions 9 Performance Graphs 10 Troubleshooting 10 If you mount the unit in your local AC mains supply. by gripping the connector, not the cord.
7. Also make sure that heat generated from locations where it with care.
4. such as benzine or thinner to qualified Yamaha service personnel...
Owner's Manual - Page 4
... red LED indicator lights up for approximately 3 seconds when the amplifier is powered ON, indicating that the soft-start up . If the problem is working. The speaker system is actually disconnected from the amplifier outputs when this indicator goes out, and normal amplifier operation is activated during soft-start protection system is corrected, the...
Owner's Manual - Page 5
....
2 INPUTS (CHANNEL A, B) Two types of balanced inputs for the connected speaker system is the grounding screw terminal. If hum or noise occurs, ground (earth) the unit via this jack, or try connecting it to set the amplifier operating mode: STEREO, BRIDGE or PARALLEL. The minimum impedance for channels A and B are not used.
Owner's Manual - Page 6
... adjusted independently. OUTPUT 450W/4Ω (STEREO) MAX. Speaker System
PARALLEL mode connections
BRIDGE
Set to STEREO
BRIDGE
SPEAKERS
CHANNEL B
CHANNEL A
BRIDGE
STEREO
STEREO PARALLEL
MAX. In BRIDGE mode... below this mode, channels A and B operate independently (as a conventional stereo amp).
s SPEAKER IMPEDANCE
In STEREO and PARALLEL modes, the minimum load (=speaker) impedance...
Owner's Manual - Page 7
... system is calculated as 3.5 [A].
• Speaker cable If you can protect your amplifier is very high: 460 W+460 W (8Ω) in stereo and 1240 W (8Ω) in monaural on the C450; 340 W+340 W (8Ω) in stereo and..., the required fuse capacity is lower than the rated output of the speaker cables do not extend from the speaker terminals. Be sure to use as thick a cable as shown below...
Owner's Manual - Page 8
... when (even with poor ventilation, the heat from the amps will be even better if the top surface of the amps to be impaired. Ventilation panel Yamaha provides an optional 1U-size ventilation panel VP1.
480
44
Unit: mm
s Mounting four or fewer amps in an open . Air circulation will cause the interior of the...
Owner's Manual - Page 9
...
6
40
3
∞ -dB 0
CHANNEL A
(BRIDGE) (PARALLEL)
BRIDGE
SPEAKERS
CHANNEL B
CHANNEL A
STEREO
BRIDGE
STEREO PARALLEL
s Positioning the Housed Amplifier
Place the case so that the ventilation airflow paths are not blocked. s Portable Rack Mounting
The amplifier intakes cool air through the front panel and exhausts warm air out the rear panel.
Air intake...
Owner's Manual - Page 10
... (mute) CLIP OUTPUT SIGNAL
PC limiter Fan Circuits Power Requirements
Power Consumption Dimensions (W × H × D) Weight Options
United States & Canada Europe Other
C450
460 W + 460 W 620 W + 620 W 1240 W
520 W + 520 W 720 W + 720 W 1440... Power=1/2 Power Output Level (Rated Power) Specifications subject to change without notice.
8 input 600Ω shunt
Slew Rate 8Ω full...
Owner's Manual - Page 12
... Graphs
C450
5k...20 1
10
100
1k
Output Power [W]
Troubleshooting
The following table lists the main causes of ±2 V or greater was generated in each case.
The amplifier load is a short at least 4Ω...in the power amplifier's output circuit. Check the ventilation slots, and improve the airflow around the amplifier. Consult your dealer or nearest Yamaha service center. PROTECTION ...
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