| Model Fifteen |
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| Cascade Model Fifteen Subwoofer 800W Powered Sub/ Plate Amp |
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| LINE VOLTAGE | Yes/No | Hi/Lo Line | Nom. | Unit |
| Notes |
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| US 120vac/60Hz | Yes | 120 | Vrms | Normal Operation |
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| QA Test |
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| Parameter | Specification | Unit | Limits | Conditions |
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| Amp Section |
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| Type (Class AB, D, other) | D |
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| Load Impedance (speaker) | 4 | Ohms |
| Nominal |
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| Rated Output Power | 800 | Watts |
| Regulated 120 V line | 5% tolerance applies |
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| THD@ Rated Power | 1 | % |
| 22k filter, 50Hz | 800W +/- 5% |
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| THD @ 1 Watt | 0.5 | % |
| 22k filter, 50Hz |
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| DC Offset |
| < 20 | @ Speaker Outputs |
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| Damping factor | 20 | N/A | > 15 |
| measured at 50 Hz |
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| Input Sensitivity |
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| Line Input | 370 mV | mVrms |
| 900 W @ 50Hz | 1 input driven |
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| Signal to Noise |
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| 100 | dBA |
| relative to rated power |
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| 70 | dBr |
| relative to rated power | 22k filter |
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| SNR rel. | 60 | dBr |
| relative to 1W Output | 22k filter |
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| Volume @max, using RMS reading DMM/VOM |
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| Residual Noise Floor | 3 | mVrms |
| (or A/P) |
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| Volume @max, w/ A/P Swept Bandpass |
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| Residual Noise Floor | 3 | mVrms(max) |
| Measurement (Line freq.+ harmonics) |
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| Input Impedance |
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| Line Input | 10 k | ohms |
| Nominal |
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| Active Filters |
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| Low Pass (fixed or variable) | Variable |
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| Frequency | 50 - 150 Hz. | Hz |
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| Slope | 24 | dB/Octave |
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| Q | Butterworth |
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| Subsonic filter (HPF) | fixed |
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| Frequency | 33 | Hz |
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| Slope | 12 | dB/Octave |
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| Q | 2.5 |
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| Friend Circuit | FIXED |
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| Frequency | 80 Hz | Hz |
| notch filter |
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| Dip | dB |
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| Q | 1 |
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| Special filter | RABOS |
| parameteric EQ, variable f, Q and notch depth. |
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| Switches |
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| Main Power ON/OFF | YES |
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| Type | rocker |
| Located on amp plate |
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| Rabos ON/OFF | YES |
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| Type | mini toggle |
| Located on amp plate |
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| Polarity Switch | YES |
| "Off": 0°; "On": 180° |
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| Type | mini toggle |
| Located on amp plate |
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| Limiter (yes/no) | YES |
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| compressor and limiter |
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| THD at Max. Output Power | less than 10 | % |
| Maximum Output Power | Max THD as a result of limiting. |
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| Output Volume Control |
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| Volume Control Pot | YES |
| mounted on amp panel |
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| Taper (lin/log) | log A taper |
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| @ minimum setting | no output |
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| Input/Output Configuration |
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| Line In (L,C,R,AC3,Mono) | Stereo |
| RCA phono jack, gold plated |
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| LFE In | YES |
| Shared with "R" Line In jack |
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| Line Outputs (L,C,R) | YES |
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| Hi Level Out | YES |
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| Signal Sensing (ATO) |
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| YES |
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| ATO Input Test Frequency | 100 | Hz |
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| ATO Input Threshold | 2 | mV | typ. |
| LPF "On", BOS "Off" |
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| ATO Low Pass cutoff | 400 | Hz | 450 | LPF "On", BOS "Off" |
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| Amp connected and AC on, then input signal |
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| ATO | 1 | ms | 10 | applied ( 1 W output ) |
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| Auto Mute / | 10 | minutes | 5 < t < 15 | Time before muting, after signal is removed |
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