background image

6

1)

output

discrete input

.

Phase reverse switch,where

11)

switch.

12)

PHASE:

STANDBY

Ovl led:

Clip led:

Signal led:

GAIN Mic/Line:

HPF:

+48V:

PAD:

Phantom led:

POWER:

The Red Led iluminate when level exceeds the maximum

level which is 3 dB

below the overload point.

2)

The Yellow Led iluminate when the input level exceeds the maximum XLR input level

which is 3 dB below the overload point.

3)

The Green Led iluminate when the input level exceeds -20dBu.

4)

An 11 position rotary switch that controls the gain of the

stage

Output level control.

6)

'+' is normal phase (input pin 2 hot), and '-' is inverted

phase (input pin 3 hot).

7)

Provides 12dB/octave low frequency rolloff 90Hz.

8)

Supplies 48 volts to the XLR inputs for condenser microphones requiring phantom

power. Avoid selecting phantom power if you are using a dynamic, ribbon or tube mics.

9)

Selects between the MIC input (via the XLR input connectors on the rear panel) and

Line levels

10)

The Red Led iluminate when the phantom power is on.

The red Led light indicates that the unit is on.

5)

FRONT PANEL

Input & Output module

Max-800

Max-800

0 dB

0 dB

COMP

OPTICAL

FET

FAST

O

REV

P

H

A

S

E

P

H

A

S

E

90Hz

F

I

L

T

E

R

F

I

L

T

E

R

MID

A

T

T

A

C

K

A

T

T

A

C

K

+48V

P

H

A

N

T

O

M

P

H

A

N

T

O

M

-20dB

P

A

D

P

A

D

OFF

LIMITER

M

O

D

E

M

O

D

E

O

F

F

O

F

F

S

Max

8

M a x

8

Slow

Max

THRESHOLD

STANDBY

ON

OFF

EIGHT VACUUM TUBE

MICROPHONE

PREAMPLIFIER

EIGHT VACUUM TUBE

MICROPHONE

PREAMPLIFIER

0 dB

0 dB

0 dB

0 dB

0 dB

0 dB

0 dB

0 dB

COMP

COMP

COMP

COMP

OPTICAL

OPTICAL

OPTICAL

OPTICAL

FET

FET

FET

FET

FAST

FAST

FAST

FAST

O

O

O

O

REV

REV

REV

REV

P

H

A

S

E

P

H

A

S

E

P

H

A

S

E

P

H

A

S

E

P

H

A

S

E

P

H

A

S

E

Clip

Clip

Clip

Clip

Ovl

Ovl

Ovl

Ovl

90Hz

90Hz

90Hz

90Hz

F

I

L

T

E

R

F

I

L

T

E

R

F

I

L

T

E

R

F

I

L

T

E

R

F

I

L

T

E

R

F

I

L

T

E

R

MID

MID

MID

MID

A

T

T

A

C

K

A

T

T

A

C

K

A

T

T

A

C

K

A

T

T

A

C

K

A

T

T

A

C

K

A

T

T

A

C

K

+48V

+48V

+48V

+48V

P

H

A

N

T

O

M

P

H

A

N

T

O

M

P

H

A

N

T

O

M

P

H

A

N

T

O

M

P

H

A

N

T

O

M

P

H

A

N

T

O

M

-20dB

-20dB

-20dB

-20dB

P

A

D

P

A

D

P

A

D

P

A

D

P

A

D

P

A

D

OFF

OFF

OFF

OFF

LIMITER

LIMITER

LIMITER

LIMITER

M

O

D

E

M

O

D

E

M

O

D

E

M

O

D

E

M

O

D

E

M

O

D

E

O

F

F

O

F

F

O

F

F

O

F

F

O

F

F

O

F

F

Sig

Sig

Sig

Sig

S

S

S

S

0

0

0

0

2

2

2

2

4

4

4

4

6

6

6

6

8

8

8

8

10

10

10

10

CHANNEL 1

CHANNEL 2

CHANNEL 3

CHANNEL 4

12

12

12

12

14

14

14

14

16

16

16

16

18

18

18

18

G.R

G.R

G.R

G.R

Off

Off

Off

Off

Max

Max

Max

Max

2

2

2

2

8

8

8

8

4

4

4

4

6

6

6

6

OUTPUT

LEVEL

OUTPUT

LEVEL

OUTPUT

LEVEL

OUTPUT

LEVEL

OUTPUT

LEVEL

OUTPUT

LEVEL

OUTPUT

LEVEL

OUTPUT

LEVEL

Min

Min

Min

Min

M a x

M a x

M a x

M a x

2

2

2

2

8

8

8

8

4

4

4

4

6

6

6

6

MIC/LINE

GAIN

MIC/LINE

GAIN

MIC/LINE

GAIN

MIC/LINE

GAIN

MIC/LINE

GAIN

MIC/LINE

GAIN

MIC/LINE

GAIN

MIC/LINE

GAIN

Fast

Fast

Fast

Fast

RECOVERY

RECOVERY

RECOVERY

RECOVERY

Slow

Slow

Slow

Slow

Off

Off

Off

Off

Max

Max

Max

Max

THRESHOLD

THRESHOLD

THRESHOLD

THRESHOLD

dB

dB

dB

dB

DAX

E

E

E

E

Audio labs

1

2

3

4

5

6

7

8

9

10

11

12

Summary of Contents for MAX-800

Page 1: ...O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F Sig Sig Sig Sig Sig Sig Sig Sig S S S S S S S S 0 0 0 0 0 0 0 0 2 2 2 2 2 2 2 2 4 4 4 4 4 4 4 4 6 6 6 6 6 6 6 6 8 8 8 8 8 8 8 8 10 10 10 10 10 10 10 10 CHANNEL 1 CHANNEL 1 CHANNE...

Page 2: ...esult in damage to the product or other property Do not defeat the earth ground connection in the AC power cable Do not operate this unit in the presence of rain liquids or condensing moisture Liquid entering the product enclosure presents the risk of electric shock injury Do not touch the AC plug or enclosure with wet hands Do not defeat intended AC power connection polarization Do not use a dama...

Page 3: ... a perfectly linear frequency response The transformerless input an output design s provides superior sound perfomance to that of the mic preamps with input transformers used in professional audio mixers Using Class A vacuum tube parallel topology with only the finest semiconductors in their architecture gives you a preamplifier with sound characteristics that bypass in perfomance the preamp modul...

Page 4: ...ES SPECIFICATIONS REGISTRATION and WARRANTY FREQUENCY RANGE CHART RECALL SHEET 5 1 Unpacking and Inspection 5 2 Rack mounting 5 3 Ventilation Preamp output module TABLE OF CONTENTS FRONT PANEL REAR PANEL 5 4 Power Requirements 5 5 Servicing Compressor Limiter module 3 1 2 3 4 5 5 5 5 5 5 6 7 8 8 9 10 11 12 ...

Page 5: ...an 48 Volt phantom power LED yellow show input peak conditions red output overload All signal routing with 32 sealed relays Minimal internal signal wiring Fully regulated high voltage phantom and dc power supplies Gold plated Neutrik XLR input and output and jack connectors Custom Dual toroidal Hum canceller power transformers with silicon foil shielding fominimuhum Dual voltage AC selector Sturdy...

Page 6: ...ntilation very 5 4 Power Requirements 5 5 Servicing For proper operation it is important that adequate ventilation is provided Vacuum tubes produce a significant amount of heat that must be removed from inside the chassis The top panel vents should never be blocked in any way We recommend that you provide adequate ventilation so that the air temperature surrounding the unit does not exceed 55 C 12...

Page 7: ... TUBE MICROPHONE PREAMPLIFIER EIGHT VACUUM TUBE MICROPHONE PREAMPLIFIER 0 dB 0 dB 0 dB 0 dB 0 dB 0 dB 0 dB 0 dB COMP COMP COMP COMP OPTICAL OPTICAL OPTICAL OPTICAL FET FET FET FET FAST FAST FAST FAST O O O O REV REV REV REV P H A S E P H A S E P H A S E P H A S E P H A S E P H A S E Clip Clip Clip Clip Ovl Ovl Ovl Ovl 90Hz 90Hz 90Hz 90Hz F I L T E R F I L T E R F I L T E R F I L T E R F I L T E R ...

Page 8: ... FET FAST FAST FAST FAST O O O O REV REV REV REV P H A S E P H A S E P H A S E P H A S E P H A S E P H A S E Clip Clip Clip Clip Ovl Ovl Ovl Ovl 90Hz 90Hz 90Hz 90Hz F I L T E R F I L T E R F I L T E R F I L T E R F I L T E R F I L T E R MID MID MID MID A T T A C K A T T A C K A T T A C K A T T A C K A T T A C K A T T A C K 48V 48V 48V 48V P H A N T O M P H A N T O M P H A N T O M P H A N T O M P H...

Page 9: ...OCK BALANCED OUTPUTS 1 8 The Db 25 pin wiring complies with the Tascam standard BALANCED OUTPUTS 1 8 The Db 25 pin wiring complies with the Tascam standard XLR BALANCED IN OUT CONFIGURATION PIN1 GND PIN2 HOT PIN XLR BALANCED IN OUT CONFIGURATION PIN1 GND PIN2 HOT PIN SERIAL MADE WITH FOREIGN AND DOMESTIC PARTS UNDER SPECIFICATIONS OF EDAX AUDIO LABS ENGINEERED AND MASTERED BY BENJAMIN A ME MADE WI...

Page 10: ...the high voltage in the unit to discharge and for the tubes to cool to room temperature 2 Only remove the top cover by removing the two 8 32 Allem head screws It is not necesary to remove the bottom cover 3 Note the position of the eight tubes V1 V8 in the porcelain sockets 4 Remove each tube and replace with the new one 5 Reinstall the top cover and screws If you notice the sound quality deterior...

Page 11: ... 3 1Vcc Mic Pad 20dB attenuation Mic Phase switch inverts the phase 180 degrees at the transformerless output Hi Pass Filter Passive 12 dB octave rolloff 90Hz Polarity input and output XLR connectors are pin 2 hot Power 100VAC to 240VAC 50 60Hz selectable Power consuption 100 watts maximum Dimensions 3U enclosure 19 x 5 25 x 14 37 48 3 x 13 3 x 36 5 cm Notes 0 dBu 0 775 Vrms All specifications are...

Page 12: ...unauthorized by Edax Audio Labs in such a manner as to injure in Edax Audio Labs sole judgment the performance stability or reliability of the unit The warranty does not apply if the unit is connected installed or used otherwise than in accordance with the instructions furnished byEdax Audio Labs There is no warranty on vacuum tubes If the equipment requires warranty repair return authorization mu...

Page 13: ...2 2 6 3 7 0 2 2 7 9 3 8 3 3 1 3 5 9 6 3 5 2 0 0 0 3 9 5 1 0 7 4 1 8 6 0 1 C D E F G A B C D E F G A A A A A A A B B B B B B B C C C C C C C D D D D D D E E E E E E F F F F F F G G G G G G M A L E F E M A L E E B A S S G U I T A R C E L L O V I O L I N T R O M B O N E P I A N O H u m a n v o i c e H u m a n v o i c e S t r i n g i n s t r u m e n t s S t r i n g i n s t r u m e n t s A L T O S A X ...

Page 14: ... A D P A D P A D P A D P A D P A D P A D P A D P A D P A D P A D OFF OFF OFF OFF OFF OFF OFF OFF LIMITER LIMITER LIMITER LIMITER LIMITER LIMITER LIMITER LIMITER M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E M O D E O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F O F F Sig Sig Sig Sig...

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