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REFERENCE POWER SUPPLY DESIGN |
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The REFERENCE amplifiers employ an extremely efficient unregulated pulse- |
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width modulated oower SUDDIV. REFERENCE amolifiers from Soundstream |
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are rated at 12 ;olts but &e’designed to take advantage of the additional |
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voltage available when the vehicle is running. The two major advantages of the |
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unregulated power supply are: |
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• awesome dynamic power capabilities |
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• added continuous power with higher voltages (see chart below) |
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Because of the dynamic properties of most music, all audiocomponents should |
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be able to react accordingly. Thanks to their unregulated power supplies, the |
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REFERENCE amplifiers can comfortably exceed their rated power for dynamic | I |
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portions of the music. |
| 6 dB/octave hiah nass |
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| L = high quality (DCR < 1 ohm) inductor/coil | ||||||
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PASSIVE AND ELECTRONIC CROSSOVERS
Your REFERENCE amplifier is unique in its ability to switch between Coherent StereoTM 
, Bridged Mono, and Mixed Mono output mode. The REFERENCE ampliiiers are capable of driving a complete subwoofer and satellite system in the Mixed Mono conliguration. However, lor lowest distortion, maximum output, and best sound quality, we recommend that you use an electronic crossover and multiple channels of amplilication.
If a single REFERENCE amplifier is to drive a subwoder and satellite system, passive high and low pass crossovers will be necessary. Use the charts on pages 7 and 8 to determine the values of the crossover components.
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| L | c | L | C |
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| 4.1 mH | 8.2 mH | 500 | uF | 16 mH | 250 WF | ||||
| 3.1 | mH | + 6.2 rnH | 4W FF | 12 mH | 200 PF | ||||
| 2.4 | rnH | 4.7 mH | 300 PF | IomH | 150 | )LF | |||
| 1.6 | rnH | 3.3 rnH | 2W pF | 6.8 mH | 100)1F | ||||
| I,2 mH | 2.4 mH | 150 pF | 4.7 mH | 75 | PF | ||||
| 0,s | mH | 1.6 | mH | 100 | pF | 3.3 mH | 50 | VF | |
| 0,5 | mti | 1 .O | mH | 58 | pF | 2.0 | mH | 33 | VF |
| 0.41 mH | 0.82 | mH | 50 )rF | 1.6 | mH | 26 VF | |||
| 0.31 mH | 0.62 | mH | 39pF | 1.2 | mH | 20 )rF | |||
| 0,25 | mH | 0.51 mH | 33 pF | l.OmH | 16 ,,F | ||||
| D.16 mH | 0.33 | mH | 22PF | 0.6.9 mH | 10~F | ||||
| D.08 mH | 0.16fIlH | 1OPF | 0.33 | mH | 5 PF | ||||
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6 | 7 |
