AP6040 - Sound system YORKVILLE - Free user manual and instructions

USER MANUAL AP6040 YORKVILLE

This lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be sufficient

magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

Instructions pertaining to a risk of fire, electric shock, or injury to a person

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

Read Instructions: The Owner's Manual should be read and understood before operation of your unit. Please, save these instructions for future reference and heed all warnings.

Clean only with dry cloth.

Packaging: Keep the box and packaging materials, in case the unit needs to be returned for service.

Warning: To reduce the risk or fire or electric shock, do not expose this apparatus to rain or moisture. Do not use this apparatus near water!

Warning: When using electric products, basic precautions should always be followed, including the following:

Power Sources

Your unit should be connected to a power source only of the voltage specified in the owners manual or as marked on the unit. This unit has a polarized plug. Do not use with an extension cord or receptacle unless the plug can be fully inserted. Precautions should be taken so that the grounding scheme on the unit is not defeated. An apparatus with CLASS I construction shall be connected to a Mains socket outlet with a protective earthing ground. Where the MAINS plug or an appliance coupler is used as the disconnect device, the disconnect device shall remain readily operable.

Hazards

Do not place this product on an unstable cart, stand, tripod, bracket or table. The product may fall, causing serious personal injury and serious damage to the product. Use only with cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the product. Follow the manufacturer's instructions when installing the product and use mounting accessories recommended by the manufacturer. Only use attachments/accessories specified by the manufacturer

Note: Prolonged use of headphones at a high volume may cause health damage on your ears.

The apparatus should not be exposed to dripping or splashing water; no objects filled with liquids should be placed on the apparatus.

Terminals marked with the "lightning bolt" are hazardous live; the external wiring connected to these terminals require installation by an instructed person or the use of ready made leads or cords.

Ensure that proper ventilation is provided around the appliance. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

No naked flame sources, such as lighted candles, should be placed on the apparatus.

Power Cord

Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. The AC supply cord should be routed so that it is unlikely that it will be damaged. Protect the power cord from being walked on or pinched particularly at plugs. If the AC supply cord is damaged DO NOT OPERATE THE UNIT. To completely disconnect this apparatus from the AC Mains, disconnect the power supply cord plug from the AC receptacle. The mains plug of the power supply cord shall remain readily operable.

Unplug this apparatus during lightning storms or when unused for long periods of time.

Service

The unit should be serviced only by qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

SUVEZ TOUTES LES INSTRUCTIONS

Your new Yorkville AP6040 power amplifier is designed and built to provide years of trouble free performance. The AP6040 combines the field proven reliability of our Audiopro amplifiers with customer requested features such as switchable limiter, a Mono/Stereo switch, and SPEAKON™ output connectors as well as binding posts.

The AP6040 weighs a comfortable but solid 64 pounds, fits into three rack spaces, and reproduces music with over 7000 Watts of headroom. It will drive reactive phase shifted loads with no difficulty - even though it is fully protected from accidental short circuits. Our design goal was to create an amplifier which would do exactly what an amplifier should do: reproduce music with great power, complete reliability, and uncompromising signal fidelity. We think you will agree that the Yorkville AP6040 does exactly that.

Inputs

Balanced Inputs

Either XLR or two-circuit 'Ring, Tip, Sleeve' Stereo 1/4-inch PHONE cords may be used. Each channel's XLR input is internally paralleled with its phone input (The TIP of the channel 'A' PHONE input is connected to pin 2 of its XLR input, the RING is connected to pin 3, and the Sleeve is connected to PIN 1). PIN 2 is in phase, PIN 3 is 180 degrees out of phase, and PIN 1 is ground. We recommend using balanced lines for the best hum-free performance, particularly when chaining multiple amplifiers.

Unbalanced Inputs

Ordinary single circuit Standard 1/4-inch PHONE plugs may be used to connect unbalanced signals. IMPORTANT NOTE: Such plugs effectively connect the ring terminal to sleeve ground, so they work correctly. However, if you use a Stereo 1/4-inch PHONE plug on an unbalanced line, you MUST short the Ring terminal to the sleeve terminal, otherwise the sensitivity will be 6dB lower than is specified! (The same applies to the XLR input: To connect an unbalanced source via the XLR input, you must connect the signal to Pin 2 and ground both Pin 1 and Pin 3).

Remote Referencing

You can approach balanced performance with unbalanced sources by utilizing the remote reference feature of the AP6040. Connect a balanced cable to the AP6040 just as you would if you were running a balanced line. At the other end, connect Pin 3 and Pin 1 together, (or connect ring to sleeve if you are using a PHONE plug cable), and plug this modified end into your unbalanced piece of equipment. This connection enables the AP6040's input to look down the cable directly at the output jack of the unbalanced equipment. Any hum voltage generated across the cable's impedance will be attenuated by the common mode rejection of the AP6040.

Driving Multiple AP6040's

In large installations it is often desirable to operate many amplifiers in tandem. Since each channel's XLR input is internally paralleled with its phone input, you may use the remaining input jack as an output to the next amplifier. Obviously you will need both XLR to XLR and PHONE to PHONE patch cords if you are going to tandem more than two amplifiers.

NOTE: These patch cords MUST be balanced whether the input signal is balanced or unbalanced!

Ground Switch

Switching the ground switch on the rear panel will disconnect chassis ground from circuit ground. Safety (earth) ground is still connected to the chassis. We do not recommend lifting the ground strap unless you are experiencing problems with ground loop hum in multiple amplifier setups where lifting the ground straps of all but one amplifier cures the hum problem.

CAUTION: Sometimes hum problems are an indication of improper AC wiring somewhere else in your system. Don't just doctor the symptom by lifting grounds. Fix the cause by making sure that the proper electrical wiring safety regulations have been adhered to.

Modes

The AP6040 can be configured for dual-MONO or STEREO operation via the rear panel MODE switch. The following is a description of each mode:

Mono Mode

• Channel A and B inputs are paralleled.
  Each gain control adjusts the signal level for its respective channel,
• Output signals are of equal phase.
• Two loads are driven.
• Loads are connected between the BLACK and RED post on each channel.

Stereo Mode

• Two independent amplifiers, Amp A and Amp B.
• Two loads are driven.
• Loads are connected between the BLACK and RED posts on each channel.

Subsonic Filter Switch

The AP6040 features a specially designed subsonic filter which effectively blocks potentially destructive energy in the band below 40Hz . The filter provides a 12 dB/ octave. skirt below 40Hz . It is implemented with a two pole network designed to minimize phase shift down to 40Hz . We recommend using this filter in conjunction with some subwoofoers and with all high power full range cabinets. With the filter disabled, the AP6040 is flat down to 20Hz , and rolls off at 12dB/Oct below that.

Limiter Switch

With the internal limiters activated, the AP6040's gain is continuously adjusted to fit the signal within the available dynamic range. Occasional clipping is permitted. The limiters will not only help to protect your system's horns and tweeters, but will automatically make the best use of the available dynamic headroom. With the limiters activated, all you need to do is turn up the signal level until you start to see some clipping. The limiters will make sure that you are getting the maximum clean power output at all times. Setting the switch to the IN position completely disables both limiters.

Protect LED

In the event of a shorted load or a load which is of too low an impedance for the amplifier to handle the PROTECT LED will flash alternately on and off at about 3 second intervals. The sound may come on and off at 12 second intervals. In this case, the fault is in the speakers or the speaker cables and should be located and remedied. No reset of the AP6040 is required to restore proper operation. The PROTECT LED will stay on if the amplifier has overheated. Check the speaker load impedance and any restrictions to air flow at the air intake or exhaust vents of the amplifier.

Short Circuit Protection

The AP6040 is fully protected against all possible passive load conditions. It can operate into a dead short continuously without damage. (However, we don't recommend that you short your AP6040 "just for fun." Shorts do create a lot of stress on the output devices). The output stage uses a unique triple slope VI-limiting scheme which is sophisticated enough to remain inert during transient currents in excess of 100 Amperes and phase angles of more than 45 degrees, yet is capable of protecting the output stage from damage due to accidental short circuits and improper loads.

DC Protection

In the unlikely event of the AP6040's outputs going DC, a thyristor circuit will short the output terminals and divert all potentially harmful currents away from your speakers.

Thermal Protection

In the unlikely event that the AP6040 overheats, the signal will be sporadically cut off and the PROTECT LED will stay on. The AP6040 is designed and tested to operate under "worst case" conditions without shutting down, so if you experience a thermal shut down you should check for blocked air flow.

CAUTION: The AP6040 can deliver over 2000 Watts of power into a speaker load. Yorkville's own high power speaker systems have circuit-breaker protection built in. Although these speakers will protect themselves, they are unlikely to be damaged by a AP6040. However, many other speaker manufacturers make "high power cabinets" with no protection features at all.

Yorkville Sound is not responsible for any damage which may result as a consequence of exceeding such a speaker's power handling capability. Yorkville's two year unconditional warranty does not cover any consequential damages to non-Yorkville equipment. Please consider these facts carefully before you choose to run your AP6040!

Cooling

The fan draws air in from the front and expels hot air through the rear vents. This is compatible with most installations. Since hot air rises, the heated air forcibly expelled from the back tends to rise away from the equipment rack. This draws cool air from the floor upwards into the front of the rack. In some cases where the rear of the rack is obstructed, it may be necessary to install rack fans to aid cooling. If there are no obstructions, no secondary cooling is required.

Clip LEDs

The CLIP LEDs on the front panel will visibly indicate any signal excursion beyond the dynamic headroom of the amplifier.

Reliability

The AP6040 is designed and manufactured by Yorkville Sound. Each unit undergoes a thorough, temperature cycled burn-in period, and each circuit is tested by both manual and sophisticated computer controlled equipment which is capable of identifying any deviation from the design center parameters. The design of the AP6040 is conservative with respect to the power handling capabilities of the output devices. The topology guarantees that thermal stress not secondary breakdown will set the limits of operation, while the computer optimized heat dissipation system insures that excessive thermal stress will not occur. Yorkville's reputation as a manufacturer of reliable equipment will be further enhanced by the AP6040.

The AP6040 is not only suitable for use in both heavy duty touring sound reinforcement systems but also when high headroom and low distortion are needed to fully reproduce the dynamic range and clarity of today's CD recordings. It is built to survive grueling road conditions and constant 4 Ohm operation. Its reliability in a fixed installation running 4 or 8 ohm studio monitors is without parallel.

Fan Filter Maintenance

The AP6040 is factory equipped with fan filters mounted on the air-intake grills located on the amplifier's front panel. Regular cleaning of these filters will increase the amplifier's long term reliability. The filters should be removed and washed at the first sign of visible clogging. This will typically occur every four to six weeks depending on use and environment. Replacement filters are inexpensive and can be ordered 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 visible on the heatsink fins.

Note: In an unusually dusty location, without regular filter inspections, 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 AP6040 has 5-way binding posts and Neutrik four contact 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 its respective binding post.

Note: Do not operate in Bridge Mode and Do Not Ground Output Terminals!

POWER OUTPUT

Both Channels Driven

Load (OHMS)	1 KHz Cont. Avg.	1 KHz Burst
8	1200	2000
4	2000	3600

All values are in WATTS. Measurements were made at the 0.1% distortion point. Some CONTINUOUS 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 60Hz 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 electrical outlet, it will usually be possible to get 3600 Watts when the AP6040 drives 4 ohms. The BURST measurements use a 10mS burst at 1KHz with a 1/8 second pause between bursts. The 1KHz burst represents the maximum possible sine wave output power.

AP6040

PROFESSIONAL SERIES

Specifications

Amplifier class H

Coninuous Average Power @ 8 ohms BCD (Watts) 1250 (x2)

Coninuous Average Power @ 4 ohms BCD (Watts) 2000 (x2)

Coninuous Average Power @ 2 ohms BCD (Watts) NA

Continuous Average Power Bridged BCD (Watts) NA

Burst Average Power @ 8 ohms BCD (Watts) 2000 (x2)

Burst Average Power @ 4 ohms BCD (Watts) 3625 (x2)

Burst Average Power @ 2 ohms BCD (Watts) NA

Burst Average Power Bridged BCD (Watts) NA

Frequency Response (Hz, +/- 1dB) 20-20,000

Hum and Noise (un / Aweighted -dB) 0.971698113

THD -1kHz- 4 ohms 0.01%

THD - 20Hz-20kHz, 4 ohms less than 0.1%

Slew Rate (V/uS) 50

Damping Factor (30 Hz - 400 Hz @ 8 ohms) 600

Crosstalk (1kHz/20Hz-20kHz) -75/-60 dB

Input Impedance - Bal/Unbal (ohms) 20,000/10,000

Input Sensitivity (Vrms) For Full Power Out 1.4 V

Max Voltage Gain (dB) 41

CMRR @ 60Hz (min/typ) 48/56 dB

Stereo / Mono / Bridge (S/M/B) S/M

Protection DC,Load,Thermal

Limiter Peak

High Pass Filter 40Hz, 12dB Octave

Cooling Dual Internal Fans

Cooling Path Front to Rear

Fan Filter 2x User Serviceable

Inputs-XLR 2

Inputs - 1/4 inch Jacks 2

Outputs - Speakon 4-pin 2

Outputs-Binding Post 2

Power Consumption (typ/max) 1800/3000 Watts

Rack Spaces 3

Transformer Type Toroidal

Exterior Finish Baked, Black Painted

19 × 18.5 × 25 × 17.6

Dimensions (DWH /D fm ears, inches)

Dimensions (DWH /D fm ears, cm)

Weight (Ibs / kg) 67

48.3 x 47 x 13.3 x 44.7

67/31

Introduction

Puisance Moyenne Continue @ 2 ohms DCF (Watts) NA

Dimensions (PLH /P fm ears, cm) 48.3 x 47 x 13.3 x 44.7

ap-detents-1v1.pdf July 17/2001

Unlimited Warranty

Yorkville's two and ten-year unlimited warranty on this product is transferable and does not require registration with Yorkville Sound or your dealer. If this product should fail for any reason within two years of the original purchase date (ten years for the wooden enclosure), simply return it to your Yorkville dealer with original proof of purchase and it will be repaired free of charge. This includes all Yorkville products, except for the YSM Series studio monitors, Coliseum Mini Series and TX Series Loudspeakers.

Freight charges, consequential damages, weather damage, damage as a result of improper installation, damages due to exposure to extreme humidity, accident or natural disaster are excluded under the terms of this warranty. Warranty does not cover consumables such as vacuum tubes or par bulbs. See your Yorkville dealer for more details. Warranty valid only in Canada and the United States.

Garantie Illimitée

Niagara Falls, New York

14305 USA

Voice: [phone]

Fax: [phone]