SDH164D SoundFX Wired Mobile Decoder for HO Locomotives
Speaker: Two 28mm dia. 32 Ohm, 0.5 W These speakers are connected in parallel.
Master Volume CV58= 9 to 15, Diesel CV60 = 1, Bell CV141= 64 Max., Horn CV142= 64 Max.
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Diesel Horn |
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880Tone Sine Wav. |
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Horn & 880 Hz together |
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Factor |
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dB@4' |
CV58 |
MtoP |
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dB@4' |
CV58 |
MtoP |
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dB@4' |
CV58 |
MtoP |
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x 0.71 |
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68 |
15 |
4.15 |
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66 |
15 |
4.25 |
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70 |
15 |
4.25 |
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3.00 |
Vrms |
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67 |
12 |
4.10 |
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65 |
12 |
4.20 |
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Each 0.5 W Speaker is O.K. |
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16 Ohm |
Load |
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66 |
9 |
3.95 |
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64 |
9 |
4.15 |
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+2 dB |
0.55 |
x 1.3 = |
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0.70 |
Watts |
The Generic Steam Diesel Scheme_38a download by a PR3, and the Bell is replaced with a Tone880Hz.wav
The dB@4' by Bob Frey with a SOUND LEVEL METER Range: 40 dB to 85 dB 9 Aug. 2012