Phonic A6500 User Manual

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1. Re ad the se ins tr uc ti on s be fore o pe ra ti ng t hi s apparatus.

2. Keep these instructions for future reference.

3. Heed all warnings to ensure safe operation.

4. Follow all instructions provided in this document.

5. Do not use this apparatus near water or in locations where condensation may occur.

6. Clean only with dry cloth. Do not use aerosol or liquid cleaners. Unplug this apparatus before cleaning.

7. Do not block any of the ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including

.

9. 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 is provided for your safety. If the provided plug does not into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plug, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories by the manufacturer.

12. Use only with a cart, stand , tripod, bracket, or table by the manufacturer, or sold with the apparatus. When a cart is used, use caution wh en mov in g the cart/apparatus combination to avoid injury from tipover.

13. Unplug this apparatus during lighting st or ms or when unused for lon g periods of time.

14. Refer all servicing to 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.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK)

NO USER SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED PERSONNEL

The 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

’

magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is in-

tended to alert the user to the presence of important operat-

ing and maintenance (servicing) instructions in the literature

accompanying the appliance.

WARNING: To reduce the risk of or electric shock, do

not expose this apparatus to rain or moisture.

CAUTION: Use of controls or adjustments or performance

of procedures other than those may result in

hazardous radiation exposure.

The apparatus shall not be exposed to dripping or splashing and that no objects with liquids, such as vases, shall be placed on the apparatus. The MAINS plug is used as the disconnect device, the disconnect device shall remain readily operable.

Warning: the user shall not place this apparatus in the area during the operation so that the mains switch can be easily accessible.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

TABLE OF CONTENTS

INTRODUCTION................................4

FEATURES ........................................4

CONTROLS & CONNECTIONS ........5

APPLICATIONS .................................7

BLOCK DIAGRAM............................8

DIMENSIONS.....................................9

SPECIFICATIONS............................10

APPENDIX: Typical Connectors....11

PHONIC CORPORATIONA6500 USER’S MANUALPage 4

INTRODUCTION

Thank you for choosing a Phonic professional audio product. The A6500 OPTIMIZER is a new generation two-channel audio compressor featuring dual-band controls with variable crossover frequency. Each band has its own independent controls for compression threshold, ratio, and attack time. The LED meters provide immediate display of the input, output, and gain reduction levels. A bypass switch in each channel allows quick comparison between the processed and unprocessed signals. The LINK option allows simultaneous control of both channels.

The dynamic controls on the OPTIMIZER effectively eliminate the excessive signal level from microphones or other sources in a live event or studio recording session, making this compressor an indispensable tool for any professional audio engineer.

This manual is designed to be both concise and comprehensive. It is concise, so you can quickly start using your new gear. It is also comprehensive, so you can gain a full understanding of the ﬁ ne equipment that you have just purchased. We hope you will soon discover that you have made a wise investment in buying a Phonic product.

FEATURES

• Full-feature two-channel dual-band

compressor

• Variable crossover for user-deﬁ ned

frequency bands

• Independent compression controls for low

and high bands

• 8-segment LED meters for displaying channel

output level and band-speciﬁ c input and gain reduction levels

• Illuminated function buttons

• Channel-link function

• Relay controlled bypass

• Balanced XLR and 1/4” TRS connectors for

input and output

• Operating levels of +4 dBu and -10 dBV

independently selectable for input and output

• Shielded toroidal power transformer

guarantying minimal interference noise

INTRODUCTION / FEATURES

A6500 USER’S MANUALPHONIC CORPORATION

Page 5

CONTROLS & CONNECTIONS

The OPTIMIZER has two channels which have identical controls and connections. The following descriptions apply to both channels.

Front Panel

1. LOW/HIGH INPUT LEVEL meter

This 8-segment LED meter displays the input level of either the low band or the high band, depending on the setting of the LO/HI METER button.

2. (Input) CLIP indicator

This LED indicator lights up when clipping occurs at either the low band or the high band, depending on the setting of the LO/HI METER button. If this indicator lights up frequently, reduce the input level from the source device to prevent audio distortion.

3. LO/HI METER button When this toggle button is depressed, the LOW/ HIGH INPUT LEVEL meter and the (input) CLIP

indicator display the status of the high band. When the button is released, the LOW/HIGH INPUT LEVEL meter and the (input) CLIP indicator display the status of the low band.

4. LOW REDUCTION meter

This 8-segment LED meter displays the amount of gain reduction occurring at the low band.

5. HIGH REDUCTION meter

This 8-segment LED meter displays the amount of gain reduction occurring at the high band.

6. OUTPUT LEVEL meter

This 8-segment LED meter displays the level of the channel output.

7. (Output) CLIP indicator

This LED indicator lights up when clipping occurs at the channel output. If this indicator lights up frequently, reduce the output level to prevent audio distortion.

8. LO COMP. T-HOLD control

This control knob adjusts the compression threshold of the low band. All signals above the set level are compressed. The threshold for the low band can be set at any level between -40 and +10 dB.

9. LO COMP. RAT control

This control knob determines the compression ratio for the low band, ranging from 1:1.2 to 1:25.

10. (Low) ATTACK control

This control knob determines the speed with which the compression for the low band begins after the input level has exceeded the threshold. The range of control is from 0.1 to 200 milliseconds.

11. (Low) RELEASE control

This control knob determines the speed with which the compression for the low band ceases after the input level has fallen below the threshold. The range of control is from 0.05 to 3 seconds.

12. X-OVER control

This control knob determines the crossover frequency, or the frequency at which the low and high bands are separated. The crossover can be set at any frequency between 10 Hz and 12 kHz.

13. HI COMP. T-HOLD control

This control knob adjusts the compression threshold of the high band. All signals above the set level are compressed. The threshold for the high band can be set at any level between -40 and +10 dB.

CONTROLS & CONNECTIONS

PHONIC CORPORATIONA6500 USER’S MANUALPage 6

14. HI COMP. RAT control

This control knob determines the compression ratio for the high band, ranging from 1:1.2 to 1:25.

15. (High) ATTACK control

This control knob determines the speed with which the compression for the high band begins after the input level has exceeded the threshold. The range of control is from 0.1 to 200 milliseconds.

16. (High) RELEASE control

This control knob determines the speed with which the compression for the high band ceases after the input level has fallen below the threshold. The range of control is from 0.05 to 3 seconds.

17. OUT LEVEL control

This control knob adjusts the level of the channel output. The range of control is from -12 to +12 dB.

18. BYPASS button

This toggle button determines whether the signal from the channel input should be processed (released) or unaltered (depressed) before it is sent to the channel output. The bypass function is useful for a quick comparison between processed and unprocessed sounds.

19. CH. LINK button

This toggle button determines whether Channel 1 and Channel 2 are to be controlled separately (released) or in sync (depressed). When the button is depressed, the settings for Channel 1 are applied to both channels.

20. POWER button

This toggle button turns on the OPTIMIZER when depressed, and turns it off when released.

Back Panel

21. INPUT connectors

The input connection is equipped with a female XLR and a 1/4" TRS jack. Both connectors are balanced.

22. Nominal operating level (IN)

This toggle button determines the nominal operating level of the input (-10 dBV when depressed, and +4 dBu when released). This setting should match the nominal operating level of the source device. In general, consumer products use -10 dBV, while professional products use +4 dBu.

23. Nominal operating level (OUT)

This toggle button determines the nominal operating level of the output (-10 dBV when depressed, and +4 dBu when released). This setting should match the nominal operating level of the target device. In general, consumer products use -10 dBV, while professional products use +4 dBu.

24. OUTPUT connectors

The output connection is equipped with a male XLR and a 1/4" TRS jack. Both connectors are balanced.

25. Power inlet and fuse holder

Use the supplied power cord to connect the OPTIMIZER to an AC power outlet of a suitable voltage. To change the fuse, use a screwdriver to slide open the fuse cover, then replace the fuse with one that is of identical type.

CONTROLS & CONNECTIONS

A6500 USER’S MANUALPHONIC CORPORATION

Page 7

APPLICATIONS

This section presents two typical methods for connecting the OPTIMIZER to a mixer.

By using a insert point

If your mixer has a insert point, you can process the signal from that insert point by connecting the OPTIMIZER to the insert point via an insert cord. See “Appendix: Typical Connectors” for an illustration of some insert cords.

By using an input channel

If your mixer does not have an insert point, or if you have used all available insert points, you may use one of the input channels as a return input. Follow these steps:

1. Connect the AUX (or EFX) output of your mixer to the input of the OPTIMIZER.

2. Connect the output of OPTIMIZER to one of the input channels of the mixer.

3. To prevent feedback, mute the AUX-send (or EFX-send) of the channel that is receiving its input from the OPTIMIZER.

Through this routing, the original signal is sent from the mixer to the OPTIMIZER for processing. The processed signal is then sent back to the mixer for mixing.

APPLICATIONS

PHONIC CORPORATIONA6500 USER’S MANUALPage 8

LOW LEVEL

LOW

LEVEL

HIGH COMP

HIGH

COMP

X-OVER FREQ

X-OVER

FREQ

VCA

LEVEL

HIGH LEVEL

HIGH

LEVEL

INPUT

VCA

RELEASE

HIGH GAIN

HIGH

GAIN

THRESHOLD

ATTACK

LOW LEVEL

LOW

LEVEL

+4/-10dB

LOW COMP

LOW

COMP

LOW GAIN

LOW

GAIN

output

+

+4/-10dB

THRESHOLD

RATIO

ATTACK

RATIO

THRESHOLD

FILTER

RATIO

MUTE

LOW GAIN

LOW

GAIN

MUTE

LEVEL

HIGH GAIN

HIGH

GAIN

THRESHOLD

K1

INPUT

ATTACK

MUTE

LOW COMP

LOW

COMP

STEREO LINK

STEREO

LINK

+

HIGH COMP

HIGH

COMP

BYPASS

HIGH LEVEL

HIGH

LEVEL

RELEASE

X-OVER FREQ

X-OVER

FREQ

BYPASS

X-OVER FREQ

X-OVER

FREQ

ATTACK

output

VCA

FILTER

MUTE

RELEASE

V+

3

4

5

6

8

7

1

2

3

4

5

6

8

7

1

2

+

-

+

-

HIGH

LOW

CHANNEL 1

CHANNEL 2

+

LOW

HIGH

+

-

CH2_H

CH2_L

CH2_H

CH2_L

BLOCK DIAGRAM

A6500 USER’S MANUALPHONIC CORPORATION

Page 9

DIMENSIONS

PHONIC CORPORATIONA6500 USER’S MANUALPage 10

Input

Connectors XLR and 1/4" TRS

Type RF ﬁ ltered, balanced input

Impedance 20k ohms balanced, 10k ohms unbalanced

Nominal Operating Level -10 dBu and +4 dBu, selectable

Maximum Input Level +14 dBu

Output

Connectors XLR and 1/4" TRS

Type RF ﬁ ltered, balanced output

Impedance 200 ohms balanced, 100 ohms unbalanced

Nominal Operating Level -10 dBu and +4 dBu, selectable

Maximum Output Level +14 dBu

System

Bandwidth 20 Hz to 20 kHz, 0 dB/-0.5 dB

Noise < -90 dB

THD + Noise 0.04% at 0 dB, 1 kHz

Crosstalk < -80 dB

Compressor

Crossover 10 Hz to 12 kHz

Threshold Low/High variable from -30 dB to +10 dB

Attack Variable (0.1 ms/20 dB to 200 ms/20 dB)

Release Variable (0.05 ms/20 dB to 3 s/20 dB)

Ratio Low/High 1:2 to 1:25

Output Level +/- 12 dB

Power Supply

Power Consumption 10 W

Power Connector Standard IEC connector

Operating Voltages 100V AC 50/60Hz, 120V AC 60Hz, 240V AC 50Hz

Fuse 100-120 V: 1 A / 250 V

200-240 V: 500 mA / 250 V

Physical

Dimension (W x H x D) Approx. 482 x 44 x 204 mm (19 x 1.75 x 8 in.)

Weight Approx. 2.7 kg (6.0 lbs.)

SPECIFICATIONS

A6500 USER’S MANUALPHONIC CORPORATION

Page 11

APPENDIX: TYPICAL CONNECTORS

Tip

Tip(Send)

Centre(Send)

Tip(Return)

Centre(Return)

Tip

1

Centre

Screen

1

Ring

2

2(Return)

2(Send)

2

3

1

2

3

1

2

3

Sleeve

Screen

Sleeve

Screen

Sleeve

B

A

L

A

N

C

E

D

U

N

B

A

L

A

N

C

E

D

I

N

S

E

R

T

C

O

R

D

Tip

1

2

XLR-F

3

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

1

2

XLR-F

3

1

2

XLR-F

3

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

XLR-F

1

2

3

1

2

XLR-F

3

11

2

3

XLR-M

1

2

XLR-F

3

11

2

3

XLR-M

1

2

XLR-F

3

11

2

3

XLR-M

Tip

Centre

Tip

1

Ring

2

3

Sleeve

Ring

Sleeve

Screen

Sleeve

B

A

L

A

N

C

E

D

U

N

B

A

L

A

N

C

E

D

Y

C

O

R

D

Y

C

O

R

D

H

E

A

D

P

H

O

N

E

S

P

L

I

T

E

R

1

2

XLR-F

3

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

11

2

3

XLR-M

APPENDIX

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