SPL Director Manuale utente

Professional Fidelity

Mastering Grade Listening

VOLTAiR

120V DC A udio Rail

DAC Preamplifier

Director

SOURCE

Director – User Manual

DA Converter and Preamplier

This User Manual is optimized for

Acrobat Reader.

Interactive buttons may not

appear in other applications.

Welcome

and thank you for choosing the Director.

The Director combines two units in one: a reference-class preamplifier with six inputs ( x analog and  x digital)

and both balanced and unbalanced outputs as well as a reference-class DA converter for PCM up to  kHz and

up to Double Rate DSD (DSD).

VOLTAiR technology is what we also call the SPL V Rail Technology within the Professional Fidelity series. This

makes the Director an outstandig device in terms of dynamic range, signal-to-noise ratio and headroom delivering an

exceptional sound experience with invincible serenity, transparancy and realness.

VOLTAiR

120V DC Audio R ail

DAC Preamplifier

Director

SOURCE

RISK OF ELEC TRIC SHO CK

DO NOT OPEN

CAUTION

RISQUEDE CHOC ÉLECTRIQUE

NE PAS OUVRIR

ATTENTION

USB

AES

OPTICAL

COAX

ANALOG < SOURCES > DIGITAL

1 ON: RCA Di rect Out

2 ON: XLR Di rect Out 5 ON: Ref +15dB

6 ON: Ref +18dB

3 ON: Zero f lag auto-m ute enabled

4 ON: RCA In -10d BV to 0dBuON BOTTOM SIDE:

DIP SWITCHES

Made in

Germany

OUT OUT R OUT L

Voltage Se lection: 1. Re move Fuse Hold er

2. Excha nge Fuses 3. Fl ip Over 4. Rei nstall

~115V A C/~230V A C, 50 Hz/60 Hz, P max . 45 W

Fuses: 23 0 V: T 500mA L 250V, 115 V: T 1 A L 250V

AMP CTL

PGM IR

PGM

SOURCE

VOLUME

Refer to

Manual

Content

Getting started 

Front view 

Rear view 

Bottom view 

DIP switches 

VOLTAiR – V Rail Technology 

Comparisons 

Operation 

Source Selection 

Volume 

IR Remote Control 

Volume 

Source Selection 

AMP CTL (Amplifier Control) 

DIP switches 

Slave Thru 

Digital  

RCA input HiFi level / Studio level 

Reference level DA converter 

Specifications 

Inputs and Outputs 

Analog inputs 

Digital inputs/sample rates 

Outputs 

Measurements 

Internal Voltages 

Power supply 

Dimensions (incl. feet) 

Weight 

Important Notes 

Declaration of CE Conformity 

Getting started

Read thoroughly and follow the instructions as well as the security advices of the Quickstart

which is enclosed in the scope of delivery! You can also download the Quickstart here.

By pressing the -Button you get to the table of contents.

By pressing the -Button you get to the front view of the unit.

By pressing the -Button you get to the rear view of the unit.

By pressing the -Button you get to the bottom view of the unit.

By pressing the -Button you get to the previous content.

Front view

VOLTAiR

120V DC A udio Rail

DAC Preamplifier

Director

SOURCE

Power LED

Rear view

RISK OF E LECTRI C SHOCK

DO NOT OPEN

CAUTION

RISQUE DE CHOC ÉLECTRIQUE

NE PAS OUVRIR

ATTENTION

USB

AES

OPTICAL

COAX

ANALOG < SOURCES > DIGITAL

1 ON: RCA Direct Out

2 ON: XLR Direct Out 5 ON: Ref +15dB

6 ON: Ref +18dB

3 ON: Zero flag auto-mute enabled

4 ON: RCA In -10dBV to 0dBuON BOTTOM SIDE:

DIP SWITCHES

Made in

Germany

OUT OUT R OUT L

Voltage Selection: 1. Remove Fuse Holder

2. Exchange Fuses 3. Flip Over 4. Reinstall

~115 V AC/~230 V AC, 50 Hz/60 Hz, P max. 45 W

Fuses: 230 V: T 500mA L 250V, 115 V: T 1 A L 250V

AMP CTL

PGM IR

PGM

SOURCE

VOLUME

Refer to

Manual

Digital Audio Inputs

Mains Switch 11

Mains Voltage 10 Analog Audio Inputs

Analog Audio Outputs

Bottom view

DIP switches

Factory setting

VOLTAiR – 120V Rail Technology

VOLTAiR – V Rail Technology

VOLTAiR is the synonym for our V Rail Technology within the Professional Fidelity series. The audio signals are

processed with an unequalled +/-V DC, which corresponds to twice that of discrete operational amplifiers and

four-times that of semiconductor operational amplifiers.

VOLTAiR Technology reaches outstanding technical and sonic performances. Technically especially in terms of

dynamic range and headroom and sonically especially in reproducing the finest details and delivering a totally

relaxed sounding audio experience. Music sounds absolutely natural.

VOLTAiR – 120V Rail Technology

Comparisons

These diagrams show how our VOLTAiR Technology compares to other circuits.

The direct relation between operating level and maximum level is fundamental for the classification: the higher

the operating level, the higher the maximum level a circuit can handle. And since virtually all essential acoustic

and musical parameters depend on this relation, a higher operating voltage also has a positive impact on the

dynamic range, distortion limit and signal-to-noise ratio.

100

120

Volt

30 V 36 V

120 V

+ / -  Volt + / -  Volt + / - Volt

Operating Voltage

120

125

130

135

140

145

124,2

129,1

141,4

OPA @ V OPA @ V SPL- OP@ V

Dynamic Range

VOLTAiR – 120V Rail Technology

Do bear in mind that dB scales do not represent linear but rather exponential increases. A dB increase corre-

sponds to doubling the acoustic power, +dB correspond to twice the sound pressure level, and +dB corre-

spond to twice the perceived loudness.

When it comes to volume, the VOLTAiR Technology exhibits a performance, in regard to maximum level and dynamic

range, that is twice that of common components and circuits given that its values are approximately dB higher.

THD measurements show a difference of more than dB compared to the OPA at V — in terms of sound

pressure level, that corresponds to an improvement of more than %. The operating level most commonly used for

audio equipment is +/-  volts.

Max. Audio Level

OPA @ V OPA @ V SPL- O P@ V

dBu

21,5 22,5

33,2

TL @ V OPA @ V SPL- O P@ V

-115

-113

-111

-109

-107

-105

dBu

-106

-111,7

-114,2

THD&N

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Indice

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