Yorkville Sound AP6020AP6020 manual Power Output, Output Connections

through Yorkville dealers. The foam filters should be removed if a regular inspection schedule is not going to be followed. The amplifier can operate without the filters in place, but the amplifier should be cleaned internally by a qualified service technician when dust is vis- ible on the heatsink fins. (see diagram, next page)

Note: In an unusually dusty location, without regular filter inspec- tions, removing the foam filter can extend the operating time before thermal shutdown could occur. At that time, the internal heatsinks should be cleaned thoroughly.

Output Connections

WARNING: When driven to full power, there is more than 100Vrms appearing between the binding posts. This represents a significant shock hazard and due care should be taken when mak- ing any speaker connections. Ensure that no strands of bare con- ductor are exposed after inserting the speaker wire into the hole in the side of the binding post terminals.

The AP6020 has 5–way binding posts and Neutrik four con- tact SPEAKON™ connectors for output speaker connections. Connection to the binding posts can either be made with a banana plug inserted into the end of the post or by wires wrapped around the threads and tightened.

There are two SPEAKON™ connectors, one for each channel out-

put. All connectors are connected to the amplifier’s outputs whether the amplifier is in stereo or mono modes. Connection configurations are labeled on the back panel. Each SPEAKON™ output connector (output A and output B) are wired in parallel with it’s respective binding post.

Speakon™ output A also doubles as the A&B/Bridge connector. This Speakon™ contains both channels on one connector. This is con- venient when connecting one speaker to the amplifier in bridge mode where the speaker is connected across the positives of each amplifier output. Configure the mode switch for bridge and connect the speaker to pins +1 and +2 of the bridge/bi-amp Speakon (figure 3).

To connect a bi-amp speaker, configure the amplifier for stereo and connect to the bridge/bi-amp connector but use all four termi- nals in the Speakon connector which will connect A and B outputs separately to the speaker (figure 2). Connection configurations are labeled on the back panel.

AP60xx AIR FILTER REPLACEMENT

and MAINTENANCE DIAGRAM

SLOT YS# 8379 Foam Filter

YS#8807 Mounting Screw

TAB

Insert AirFlow Grille Tab	YS#Z260 AirFlow Grille
into Slot on Chassis first.

Power Output

Both Channels Driven

Load	1 KHz Cont.	1 KHz Burst
(OHMS)	Avg.
4	1200	2000
2	2000	3600

All values are in WATTS. Measurements were made at the 0.1% distortion point. Some CONTIN- UOUS AVERAGE POWER measurements required line currents greater than 30 Amps. The amplifier under test was plugged into an IDEAL POWER LINE consisting of a REGULATED 120 VAC RMS 60 Hz pure sine wave. Ordinary AC "wall outlet" lines will always exhibit varying and unpredictable amounts of sag. To produce objectively verifiable and accurate specifications these unknown factors must be eliminated by using an ideal AC line. When using an ordinary elecrtical outlet, it will usually be possible to get 3600 Watts when the AP6020 drives 2 ohms. The BURST measurements use a 10ms burst at 1Khz with 1/8 second pause between bursts. The 1Khz burst represents the maximum possible sine wave output power.

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