YORKVILLE AP6020AP6020, Owner'S Manual

3

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 making any 

speaker connections. Ensure that no strands of bare conductor 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 output. 

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 convenient 

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 terminals 

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.

TAB

SLOT

YS#Z260 AirFlow Grille

YS#8807 Mounting Screw

YS# 8379 Foam Filter

Insert AirFlow Grille Tab

into Slot on Chassis first. 

AP60xx

 AIR FILTER REPLACEMENT 

and MAINTENANCE DIAGRAM

Both Channels Driven

Load

(OHMS)

1 KHz Cont.

Avg.

1 KHz Burst

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. 

Power Output