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Phoenix Audio DRS-Q4
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Phoenix Audio DRS-Q4

Préampli à transistors de la marque Phoenix Audio

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  • Fabricant : Phoenix Audio
  • Modèle : DRS-Q4
  • Catégorie : Préamplis à transistors
  • Fiche créée le : 09/06/2007


DRS-Q4 Specifications

1U rack space unit: With 240V/110V mains voltage input selector switch

Class A (DSOP-2) Output specs.  Frequency response: 20Hz to 20kHz +- 0.5dB,  

Maximum Output Level:  +26dBu @ 1kHz  

Noise:  -90dB @ 20Hz to 20kHz. 

Output connections: XLR and TSR 1/4" Jack on rear                      

Phoenix Audio’s unique Class A, transformerless, True balanced Mic input stage.                          

Microphone/Line input:  XLR on Rear Panel                     

DI inputs:  ¼” TSR Jack on Front Panel 

Individual Earth Lift: Push-button Switches                   

Gain Range (Mic input): -30 to -70 in 5dB steps With 10dB more available on the fader. 

High Input Impedance DI: Mono 1/4" Jack on front panel (no FETs    

Gain Meter: LED Metering. (Green = 0dB, Yellow = +8dB, corresponding to “4” and “6” 
on a PPM Meter).           

Phantom Power: Switchable  phantom on Push-button Switch 

High Pass Filter: Roll-off starts at 120Hz @ 12dB per Octave.    

Phase Reverse: on Push-button Switch                 

Frequency Response Mic Input Stage: -0.4dB @ 40Hz, -0.3dB @ 25kHz                                

Frequency Response: DI Input Stage: -0.3dB @ 40Hz, - 0.5dB @ 25kHz                               

Typical Headroom: +24dB on Mic-Pre stage                      

Gyratory-based EQ Frequency Centres: (4 Bands) High - 15K, 10K,  Hi Mid - 6K, 3K, 
1K6,  Low Mid – 800Hz, 400Hz, 200Hz, Low - 130Hz, 80Hz, 40Hz                            

EQ Cut/Boost Levels: 16dB Cut/Boost Per Band 

DI Stage gain: Maximum of 20dB


CONNECTIONS AND CONTROLS 

Front Panel 

Rotary Gain Sensitivity Switch:  The sensitivity switch operates in both Mic and Line Mode. For Microphone 
mode the switch’s gain range is marked from -30dB to -70dB.  When the LINE switch is pressed in the 
sensitivity of the gain control is -30dB lower than the marked gain.  Eg: -30 position in LINE mode is 0dB, -
60dB position in LINE mode is -30dB. 

Output Level Rotary knob:  The Output level knob controls the level at the output XLR on the rear panel only.  
It does not affect the input sensitivity. 

Level LED’s: The LED’s are marked 0 (Green) and +8 (Red).  These are set to illuminate at 0dB and +8dB 
(Corresponding to 4 and 6 on a PPM Meter).  The LED’s are PPM style metering and have some hysteresis to 
allow a better view of fast changing levels. 

These LED’s are connected to the OUTPUT  stage of the unit to give you a clear view of what level is being sent 
to external equipment. 

DI Input ¼” Jack socket: The Jack socket is a TS socket wired Tip-Hot, Sleeve-Cold.  The DI input is a high 
input impedance circuit (without the use of FETs), and is capable of accepting a wide range of instruments, from 
keyboards to guitars and more. 

EQL Push Button: Engages the Gyratory Based Eq circuit when depressed. 

DI Push Button: Disconnects the Input XLR and engages the DI Jack on the front panel.  

HPF Push Button: Engages the High Pass Filter.  The filter is active regardless of which input is being used. 

Phase Push Button: Reverses the Phase of the Input XLR only. 

+48V Push Button: Applies 48V Phantom Power to the Input XLR.  The phantom power will be applied to the 
XLR in both Mic and Line mode. 

Mic/Line Push Button: Switches the Input XLR between Mic and Line (depressed) mode. 

Earth Lift Push Button: Disconnects internal 0v from the chassis earth.  This is for use when using 
microphones with their own PSU, or can be useful in situations where hum is being created by an earth loop.  
This push-button does not disconnect the chassis safety earth from the mains earth. 

REAR PANEL

Mic Input XLR: This XLR accepts both Microphone and Line level inputs.  These can be balanced or 
unbalanced inputs.  

Output XLR: Transformer balanced output.  Can be used at the same time as the Output ¼” TRS Jack, as long 
as total loading does not exceed 200R.  

INPUT and OUTPUT connections:

The DRS is fitted with an XLR input on the rear panel.  The XLR's are industry-standard Pin 1 - Ground, Pin 2 - 
Hot, Pin 3 - Cold. 

The DI input is a standard 1/4" (6.35mm) mono jack socket (wired Standard - Tip-hot, Sleeve-Ground) 

The Output of the unit is on the rear of the unit and is available on both a 3 Pin XLR (wired as the input XLR), 
and a Stereo 1/4" (6.35mm) Jack socket (wired Tip-Hot, Ring-Cold, Sleeve-Ground). The outputs are wired in 
parallel.

Distribué par Filling Distribution

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Autres catégories dans Préamplis microphones

Autres dénominations : drs q4, drsq4, drs q 4