background image

Page 10

Specifications

  

-

  

Seta

  

Model

  

L,

  

for

  

Low

  

Output/Low

  

Impedance

  

(Moving

  

Coil)

  

Cartridges

• Voltage

  

Gain:

  

43,

  

46,

  

49,

  

53

  

dB

• Input

  

Load

  

Resistance:

  

maximum

  

2

  

kΩ;

  

user

  

adjustable

• Frequency

  

Response

  

(-3

  

dB):

  

DC

  

to

  

>

  

5

  

MHz,

  

at

  

any

  

gain

  

setting;

  

slew

  

rate

  

greater

  

than

  

500

  

volts

  

per

  

microsecond

  

(5

  

volts

  

peak

  

to

  

peak

  

output,

  

25

  

to

  

75%)

• Phase

  

Shift:

  

ultralinear,

  

less

  

than

  

1

  

degree,

  

DC

  

to

  

100

  

kHz,

  

at

  

any

  

gain

  

setting

• Signal

  

Propagation

  

Delay:

  

less

  

than

  

60

  

nanoseconds,

  

input

  

to

  

output

• Distortion:

  

less

  

than

  

0.001%,

  

10

  

Hz

  

to

  

40

  

kHz,

  

at

  

any

  

gain

  

setting,

  

0

  

dBV

  

(3

  

Volts)

  

output

  

level

• Circuit

  

Topology:

  

Fully

  

balanced,

  

direct-coupled

  

(no

  

capacitors

  

in

  

the

  

signal

  

path)

• Cartridge

  

Fine

  

Balance

  

Trim:

  

2

  

dB

  

range,

  

not

  

affected

  

by

  

Voltage

  

Gain

  

setting

• Inputs:

  

Neutrik,

  

Premium

  

Gold

  

Pin

  

XLR

  

Balanced;

  

WBT,

  

premium

  

wide

  

bandwidth

  

helical

  

gold

  

pin

  

RCA

  

(RCA

  

inputs

  

function

  

as

  

single-ended

  

to

  

balanced

  

adapters)

• Outputs:

  

Neutrik,

  

Premium

  

Gold

  

Pin

  

XLR

  

Balanced

• Output

  

Impedance:

  

less

  

than

  

40

  

ohms

• Output

  

Drive

  

Capability:

  

Balanced

  

cable,

  

up

  

to

  

33

  

feet

  

(10

  

meters),

  

600

  

ohms

  

or

  

greater

  

load

  

impedance

• Storage

  

Temperature

  

(with

  

charged

  

AGM

  

batteries):

  

0

  

to

  

78

  

degrees

  

F

• Operating

  

temperature:

  

40

  

to

  

75

  

degrees

  

F;

  

battery

  

life

  

will

  

be

  

diminished

  

at

  

higher

  

temperatures

• Power

  

Consumption:

  

less

  

than

  

5

  

watts

  

idle

  

/

  

maintenance

  

AGM

  

float;

  

less

  

than

  

20

  

watts

  

while

  

operating

  

or

  

with

  

AGM

  

recharging

Optional

  

RIAA

  

Correction

  

Module

• Circuit

  

Topology:

  

Fully

  

balanced,

  

direct

  

coupled;

  

second

  

order,

  

dual-range

  

DC

  

servo

  

(primary

  

time

  

constant

  

10.3

  

seconds).

  

Passive

  

high

  

frequency

  

EQ;

  

premium,

  

low

  

distortion

  

wide

  

bandwidth

  

FET

  

based

  

gain

  

stage

  

for

  

active

  

low

  

frequency

  

EQ.

  

Independent

  

single

  

ended

  

(RCA)

  

ground

  

referenced

  

and

  

balanced

  

outputs;

  

low

  

noise

  

4-layer

  

circuit

  

boards

  

and

  

surface

  

mount

  

component

  

technology

• Gain:

  

adds

  

12

  

dB

  

to

  

“flat”

  

signal

• Channel

  

Separation:≥

  

80

  

dB,

  

20

  

Hz

  

-

  

20

  

kHz

  

(greater

  

than

  

100

  

dB

  

at

  

1

  

kHz)

• Frequency

  

Response

  

(-3

  

dB):

  

DC

  

to

  

12

  

MHz,

  

balanced

  

or

  

single-ended

  

outputs

• Channel

  

Match:

  

better

  

than

  

±

  

0.02

  

dB,

  

10

  

Hz

  

-

  

50

  

kHz

• Deviation

  

from

  

RIAA

  

Standard:

  

less

  

than

  

±

  

0.1

  

dB,

  

10

  

Hz

  

-

  

50

  

kHz

• Harmonic

  

Distortion

  

(20

  

Hz

  

-

  

20

  

kHz):

  

less

  

than

  

0.001%

• RIAA

  

Overload

  

Margin:

  

26

  

dB

  

at

  

1

  

kHz,

  

15

  

dB

  

at

  

20

  

kHz

• High-pass

  

filter:

  

-12

  

dB

  

/

  

octave

  

at

  

10

  

Hz

  

(can

  

be

  

disabled

  

with

  

internal

  

jumpers)

• “Neumann”

  

setting:

  

50

  

kHz

  

RIAA

  

modification,

  

can

  

be

  

enabled

  

with

  

internal

  

jumpers

• Outputs:

  

Neutrik,

  

Premium

  

Gold

  

Pin

  

XLR

  

Balanced;

  

WBT,

  

premium

  

wide

  

bandwidth

  

helical

  

gold

  

pin

  

RCA

• Output

  

Impedance:

  

less

  

than

  

40

  

ohms

• Output

  

Drive

  

Capability:

  

Balanced

  

cable,

  

up

  

to

  

33

  

feet

  

(10

  

meters),

  

600

  

ohms

  

or

  

greater

  

load

  

impedance

• Components:

  

Precision

  

(0.1

  

percent)

  

metal

  

film

  

resistors;

  

ultra

  

low

  

dissipation

  

factor

  

sprayed

  

metal

  

film

  

polypropylene

  

capacitors,

  

hand

  

selected

  

to

  

match

  

design

  

within

  

0.1

  

percent

  

tolerance;

  

ultra

  

low

  

ESR

  

power

  

supply

  

decoupling

  

capacitors

Dimensions

• 15.1”X

  

2.4”X

  

6.6”

  

(W

  

x

  

H

  

x

  

D)

    

Weight

  

9

  

pounds

  

(Seta

  

Plus)

• 12”X

  

2”X

  

7”

  

(W

  

x

  

H

  

x

  

D)

  

Weight

  

6.5

  

pounds

  

(Seta)

Warranty

• One

  

year

  

parts

  

and

  

labor,

  

limited

  

warranty.

  

In

  

the

  

unlikely

  

event

  

your

  

Seta

  

must

  

be

  

returned

  

to

  

Channel

  

D

  

for

  

repair,

  

contact

  

Channel

  

D

  

in

  

advance

  

for

  

a

  

return

  

material

  

authorization

  

number

  

and

  

shipping

  

instructions.

In

  

keeping

  

with

  

our

  

continuing

  

efforts

  

to

  

enhance

  

and

  

improve

  

our

  

products,

we

  

reserve

  

the

  

right

  

to

  

change

  

specifications

  

without

  

notice.

Document

  

Copyright

  

©

  

2008,

  

2009,

  

2010,

  

2012,

  

2013,

  

2014,

  

2015,

  

2016

  

Channel

  

D

  

All

  

Rights

  

Reserved

Seta

  

is

  

a

  

Registered

  

Trademark

  

of

  

Channel

  

D

Summary of Contents for SETA L

Page 1: ...wer jack on the rear panel of the Seta It will take the Seta at least one hour for the internal circuitry and solid copper parts to become stabilized to normal operating temperature The following items are included Please check the package and notify Channel D of any shortage Seta Preamplifier with Internal AGM Batteries Installed External DC power supply 110 220 Volt Input 2 Wire Isolated Input P...

Page 2: ...rs for applying RIAA compensation or other similar software on other computer platforms Consult the Pure Vinyl software User Guide for more information If using an audio interface with single ended unbalanced inputs not recommended do not connect either XLR output pin to common ground The correct wiring configuration would be to use XLR Pin 2 as signal and XLR Pin 1 as ground if using a balanced t...

Page 3: ...be initialized by pressing the front panel Gain button several times until the Low Light Blue indicator appears The gain setting will be preserved as long as power is supplied and as indicated below in the AGM Rechargeable Battery Operation and Charging section the Seta should normally be maintained in a powered state WARNING Always make changes to the Gain Setting at a reduced or muted playback v...

Page 4: ...ed to offer quieter operation and wider bandwidth with low output moving coil cartridges than is possible with the circuitry used in the Model H Note the Model L cannot be used with high impedance cartridges such as moving magnet or high output moving coil Note If you re accustomed to using conventional phonograph preamplifiers the available Flat Seta gain settings may seem somewhat lower than usu...

Page 5: ...ndex line on the shaft to assist in determining the selector position Note the load settings correspond to having the Single Ended jumpers see below set to the factory supplied Balanced position 25 Ohms 50 Ohms 100 Ohms 150 Ohms 200 Ohms 300 Ohms 500 Ohms 750 Ohms 1000 Ohms 2000 Ohms Other load settings can be obtained by inserting user supplied resistors in the sockets provided on the main circui...

Page 6: ...d The sockets are premium machined gold fingered high reliability type The sockets are on 0 3 inch centers and will accommodate the leads of typical passive resistors and capacitors with this lead spacing Removing Cover Seta with RIAA Correction Module shown Seta Plus Remove 6 hex screws inset figure shows side view Seta Remove 4 Philips screws inset figure shows side view ...

Page 7: ...operation it is strongly advised that balanced shielded twisted pair cable be used to connect the turntable to the Seta This may entail rewiring the turntable For low impedance low output cartridges such as moving coil with an internal resistance of 100 ohms or less and nominal output voltage around 0 6 mV or less shielded twisted pair microphone standard audio signal cable can be used For high im...

Page 8: ...over 24 hours of continuous operation The AGM type lead acid battery is superior to all other battery types used in high end audio applications see http www channld com seta html under the Rechargeable Battery section The Seta will automatically activate Charge mode under either of the following two normal conditions A signal resulting in an output level of less than 40 dBV isn t detected for abou...

Page 9: ... capacity of approximately 2 3 ampere hours is acceptable For example McMaster Carr part number 7448K13 Power Sonic PS 630 The batteries must be replaced in pairs and only sealed lead acid type batteries can be used All other battery types are incompatible with the internal battery monitoring and maintenance circuitry and Seta power and voltage requirements It s best to obtain a fresh replacement ...

Page 10: ...ve low frequency EQ Independent single ended RCA ground referenced and balanced outputs low noise 4 layer circuit boards and surface mount component technology Gain adds 12 dB to flat signal Channel Separation 80 dB 20 Hz 20 kHz greater than 100 dB at 1 kHz Frequency Response 3 dB DC to 12 MHz balanced or single ended outputs Channel Match better than 0 02 dB 10 Hz 50 kHz Deviation from RIAA Stand...

Page 11: ...mmended move all four jumpers indicated into the DC position Neumann RIAA Curve Modification The Seta is configured from the factory for the standard RIAA curve The Neumann modification introduces an extra high frequency time constant to compensate for the putative roll off of the mastering lathe cutting head The Neumann setting can be enabled by removing the two jumpers indicated or placing them ...

Reviews: