dtr20 Posted March 30, 2021 Share Posted March 30, 2021 I picked up a Wharfedale Pro MP1200 amplifier awhile back. I heard it demoed and that's it, its been sitting in its box ever since. The specs look impressive, but the frequency response confuses me. I am trying to figure out if it could be used to drive a subwoofer and get below 20 hz or not. It supposedly does 20Hz-20kHz at +/-1db, but does 5Hz-50kHz at +/-3db. Does this mean its an option what tolerance you want? See full specs below. Thanks for your help. Specifications MP 1200 Power: Per Channel (1% THD) Stereo Mode 8 Ohms 260 Watts Stereo Mode 4 Ohms 400 Watts Stereo Mode 2 Ohms 640 Watts Bridged Mono Mode 8 Ohms 800 Watts Bridged Mono Mode 4 Ohms 1280 Watts Input Sensitivity & Impedance At 4 Ohms 0.775v Unbalanced 1/4" Jack 10K Ohms Balanced XLR 20K Ohms Voltage Gain 35dB Slew Rate: 8 ohms FULL SWING Stereo >30v/u sec Channel Seperation 76dB Signal to Noise (20Hz - 20kHz) 100dB Distortion (SMPTE-1M) less than 0.05% Frequency Response +/-1dB @ 4 Ohms 20Hz to 20kHz +/-3dB @ 4 Ohms 5Hz to 50kHz Damping Factor (8 ohms, 1kHz) Greater than 300 Topology Class AB Connectors Input XLR & 1/4" TRS Output 5 Way Binding Posts & Speakon or Speakon Controls Front AC Switch, CH1 & CH2 Gain Knobs Rear Stereo/Bridge Mode Switch Indicators Power switch on/off mute, Short circuit, Open circuit, Thermal Cooling Variable Speed Fan Gross Weight (kg / lbs) 23kg / 50.6lbs Net Weight (kg / lbs) 21.5kg / 47.3lbs Dimensions (HxWxD) mm 133 x 483 x 355 Dimensions (HxWxD) inches 5.2 x 19 x 13.9 Quote Link to comment Share on other sites More sharing options...
The Dude Posted March 30, 2021 Share Posted March 30, 2021 I understand it that the amp produces +/- 1db at the 20-20k range, but +/- 3db at the 5-50k range. Meaning the amp has the ability to produce 5-50k frequency range, but not as well as the 20-20k frequency range. I don't see why it wouldn't run your sub below 20 hz, just not as loud as above. That being said, how low does your sub go? Would bridging help out? Here's an example of the Behringer NX6000 everyone uses. Outside of the power, it appears your amp has a little better control/specs. Looking at these, I would say you are good to go. Quote Link to comment Share on other sites More sharing options...
dtr20 Posted March 30, 2021 Author Share Posted March 30, 2021 just trying to plan something for the future. looking at an 18" driver from parts-express for my father's setup. I have an older Definitive Technology Powerfield 18 that we were thinking about switching out the driver in it and powering it with this amp, Quote Link to comment Share on other sites More sharing options...
Lbk Posted March 31, 2021 Share Posted March 31, 2021 I am using one to power my revel b15, chorus II mains. The revels sub amp is messed up. Quote Link to comment Share on other sites More sharing options...
dtr20 Posted April 1, 2021 Author Share Posted April 1, 2021 Thanks for the help. The consensus is they will play down to the teens? Quote Link to comment Share on other sites More sharing options...
OO1 Posted April 1, 2021 Share Posted April 1, 2021 43 minutes ago, dtr20 said: Thanks for the help. The consensus is they will play down to the teens? easily - Quote Link to comment Share on other sites More sharing options...
The Dude Posted April 4, 2021 Share Posted April 4, 2021 Thanks for the help. The consensus is they will play down to the teens? Yes, just down 2 db below 20 hz.Sent from my SM-G986U using Tapatalk Quote Link to comment Share on other sites More sharing options...
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