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SPHINX

    Project Eighteen

 9 

 

6. CARE AND MAINTENANCE

Clean the exterior with a soft, lint-free, anti-static
cloth. Do not use force while wiping the surface.
To remove difficult stains use a few drops of
detergent on a moist cloth, sweep carefully and
wipe dry afterwards.

If some scratching might occur, please first consult
your Sphinx dealer. He can give you advice about
possible solutions.

Do not use polishing or cleaning agents

: they

may damage the sensitive acrylic finish.

Do not use aerosol cleaning agents

.

Most contain solvents which might actively react
and damage the acrylic finish.

7. TECHNICAL SPECIFICATIONS

Bandwidth

0 - 100,000 Hz (+0/-1 dB, with input filter)

Phase response error

<1° (0 - 20,000 Hz)

Gain

30 dB max.

Minimum Power Output (1 - 20,000 Hz)

>2x 160 W into 8 ohm (22.0 dBW), THD<0.01%
>2x 280 W into 4 ohm (24.5 dBW), THD<0.01%
>2x 420 W into 2 ohm (26.2 dBW), THD<0.01%

Output voltage / current, max.

36 V / 43 A

THD+N (IHF-A)

<0.01% (1 W into 8 ohm, 1 - 20,000 Hz)

IMD

<0.01% (100 W into 8 ohm)

S/N ratio (IHF-A)

>120 dB (1 W into 8 ohm)

Common Mode Rejection Ratio

>80 dB (@ 100 Hz)

Slew rate

>50 V/µs

Damping factor

>2000 (1 - 20,000 Hz)

Input

cinch: unbalanced / XLR: balanced

 level, nominal

1.25V ( 1.9 dBV) / 1.25 V ( 1.9 dBV)

 impedance

20 kohm / 600 ohm

Supply capacitance

132,000 µF total

Power consumption

1500 W max. (70 W standby)

Dimensions (h x w x d)

143 x 482 x 452 mm

Weight

24 kg

This unit conforms to the EMC interference regulations from the EU and to the CE standards.
This unit complies with safety regulation VDE 0860 and thus with international safety regulation IEC 65.

Technical specifications can be changed by SPHINX without prior notice if technical developments make this
necessary.

©1999 Audioscript BV

Summary of Contents for PROJECT EIGHTEEN

Page 1: ...1 USER MANUAL PROJECT EIGHTEEN DUAL MONO STEREO POWER AMPLIFIER ...

Page 2: ...ALLATION AND CONNECTIONS 6 Installation 6 Connections in general 6 Connecting loudspeakers 6 Connecting the inputs 6 Balanced 6 Unbalanced 6 Connecting the optical cables 7 Connecting the mains power cable 7 5 OPERATION 8 Power On 8 Power off 8 Warnings 8 If you encounter problems 8 6 CARE AND MAINTENANCE 9 7 TECHNISCHE DATEN 9 ...

Page 3: ...ng for a big power amp with two transformers To obtain the maximum quality from this power amp it is necessary to use it with top quality audio components So preferably use it with other Sphinx components Your local dealer will be able to answer any questions concerning other Sphinx audio components 1 UNPACKING Before leaving the factory every Project Eighteen is subjected to stringent and extensi...

Page 4: ...SPHINX Project Eighteen 4 3 THE POWER AMP AT A GLANCE Front panel 1 STANDBY To switch the component on and off 2 LED Indicates the selected function stand by red on green 1 2 ...

Page 5: ...and 8 down balanced 5 and 9 8 CINCH LEFT To connect the cinch cable from the left output of the signal source 9 BALANCED LEFT To connect the XLR cable balanced cable from the left output of the signal source 10 CONTROL OUT To connect the optical cable going to another Sphinx component 11 LEFT OUTPUT To connect the cable from the left loudspeaker red white 12 ON OFF This is the mains power master s...

Page 6: ...least signal quality loss Connecting loudspeakers We recommend using a double pair of cables if this is possible with the loudspeakers used one pair for the highs and another for the lows In most cases you will hear a substantial improvement in the sound quality but be careful to prevent shorted connections Your dealer can recommend the best cables and connection methods Connect the red RIGHT OUTP...

Page 7: ...er Sphinx component which most likely will be another power amp this component will be selected to stand by by the Project Eighteen s stand by mode Ensure proper connection of the optical cables from CONTROL OUT to CONTROL IN otherwise the LED next to the STANDBY button 1 on the front panel may remain green although the stand by mode is activated If the Project Eighteen is placed in strong direct ...

Page 8: ...around the 70 W mark Warnings 1 Never put two amps on top of each other 2 The component should not be subjected to moisture of fluids 3 Do not touch the component and the loudspeaker outputs in particular with moist hands this powerful amp can output voltages in excess of 36 volt 4 Before removing the top panel you should disconnect the mains cable and wait at least 30 minutes because the power su...

Page 9: ...1 20 000 Hz 2x 160 W into 8 ohm 22 0 dBW THD 0 01 2x 280 W into 4 ohm 24 5 dBW THD 0 01 2x 420 W into 2 ohm 26 2 dBW THD 0 01 Output voltage current max 36 V 43 A THD N IHF A 0 01 1 W into 8 ohm 1 20 000 Hz IMD 0 01 100 W into 8 ohm S N ratio IHF A 120 dB 1 W into 8 ohm Common Mode Rejection Ratio 80 dB 100 Hz Slew rate 50 V µs Damping factor 2000 1 20 000 Hz Input cinch unbalanced XLR balanced le...

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