Related Manuals for Dave Hill Designs EUROPA I
Summary of Contents for Dave Hill Designs EUROPA I
- Page 1 EUROPA I PREAMPLIFIER MANUAL VER 1.01 201102025 2117 E5th street Superior WI USA 54880 davehilldesigns.com See the next page for startup switch settings © 2011 Dave Hill Designs...
- Page 2 Start Up Settings Safety Information Introduction Guided Tour Panel Guide Color-Distortion Curves Filter Curves Specifications SETTINGS TO START WITH HARMONICS SET TO OFF IMPEDANCE PHANTOM SET TO MID POWER SPEED SET TO OFF SET TO FAST PHASE LOW CUT 18 DB/OCTAVE SET TO SET TO OFF MIC INPUT...
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions 2. Keep these instructions 3. Heed all warnings 4. Follow all instructions 5. Do not use this apparatus near water 6. Clean only with dry cloth 7. Install in accordance with the manufacturer's instructions 8. - Page 4 INTRODUCTION Europa 1 is a preamplifier that is constructed with 91 transistors in it’s main audio path and it is of discrete Class A topology. The preamplifier controls are either traditional pre-amplifier type controls or color controls. It is also necessary to understand that distortion may not sound like what one normally thinks distortion is.
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Page 5: A Guided Tour
A GUIDED TOUR a self guided sound test Controls that change the color or add distortion are always difficult to describe The Speed control is a control that changes the way the preamp responds to transits. It is a control that changes the slew rate, it is a rate of change filter. - Page 6 Being the controls are in series, try the a drum and or voice and bring up both the Speed control and the Odd Harmonic control. Compare this with the unprocessed audio. The level dependence is that same thing that happens with all vintage analog gear. This is not about making a color by adding a little LF boost or a little HF cut;...
- Page 7 MIC IMPEDANCE HI-Z 2.2K OHMS HARMONICS 300 OHMS GAIN PHANTOM MIC GAIN 0 TO 66 DB POWER HI-Z GAIN 0 TO 30 DB SPEED HI-Z INSTRUMENT PHASE INPUT LOW CUT POWER 18 DB/OCTAVE MIC - INSTRUMENT EVEN SELECT HARMONICS LINE VOLTAGE SELECTION...
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Page 8: Speed Control
The top wave shape is a vocal recoding The bottom is the same slowed down by the Speed control; this is an extreme case to show the effect on the wave shape SPEED CONTROL... - Page 9 FREQUENCY RESPONCE OF WITH THE SPEED CONTROL SET TO 1 NOTE: LOW LEVEL SIGNALS HAVE A NEAR FLAT RESPONCE HIGH LEVEL SIGNALS ARE CHANGED SPEED CONTROL FREQUENCY RESPONCE...
- Page 10 EVEN HARMONIC DISTORTION WITH LEVEL...
- Page 11 ODD HARMONIC DISTORTION WITH LEVEL...
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Page 12: Low Cut Filter
LOW CUT FILTER... -
Page 13: Specifications
SPECIFICATIONS Maximum input: +24dbu balanced, +16dbu unbalanced Maximum output: +24dbu balanced Hipass Filter: 3 pole, 18db per octave, 8 frequencies 148 Hz, 130 Hz, 17 Hz, 100 Hz, 81 Hz, 63 Hz, 48 Hz, 33 Hz Gain: 0 to 66 db, 1 steps Gain Insturment Input: 0 to 30 db, 1 db steps Mic Impedance:...
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