| Product | MPX Master Tape |
| Developer | Waves |
| Price (MSRP) | $200 |
| Type / Tags |
| Effect(s) |
| Operating System |
Latest Version |
Download | Released |
| 9r11 | Downloads | ![]() |
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| 9r11 | Downloads | ![]() |
| Copy Protection | Online Activation (Challenge / Response) |
| Avg. User Rating |
Developed in association with Eddie Kramer, the MPX Master Tape plugin is modeled on a rare machine consisting of an Ampex 350 transport and 351 electronics. With adjustable tape speed, bias, flux, wow & flutter, and noise parameters, the MPX provides comprehensive control over the contours of your sound. And to top it off, Waves added a flexible slap & feedback delay, ideal for rock, dance, dub, you name it. For recording, mixing, mastering, and more, bring the richness and warmth of real tape saturation to your DAW with the MPX Master Tape.
The MPX Dream Team
Special thanks go out to Eric Schilling (Shakira, Gloria Estefan, Natalie Cole, Elton John) who provided Waves with the machine, Bob Olhsson (Stevie Wonder, Marvin Gaye, Diana Ross) and especially John Haeny (Bonnie Raitt, Weather Report, Jackson Browne, Linda Ronstadt, Jim Morrison, Tom Jones), who provided invaluable assistance in the development of the MPX plugin.
Features:
- Modeled on the Ampex 350/351 1/4" reel-to-reel.
- Adjustable tape speed, bias, flux, wow & flutter.
- Slap & feedback delay.
- Up to 24bit 96kHz resolution.
- Mono and Stereo components.
- Supports TDM, RTAS, Audio Suite, VST, AU.
- PC and Mac compatible.
Controls:
- SPEED selects the simulated tape speed.
- MONITOR selects the monitoring mode.
- BIAS controls the level of the ultrasonic bias signal.
- VU METER displays input or output level.
- VU CALIBRATION controls the VU meter headroom calibration.
- DELAY TIME controls the time of the tape delay effect, with settings for 7.5 ips (266 milliseconds) and 15 ips (133 ms).
- DELAY TYPE toggles between delay modes.
- FEEDBACK controls the amount of the delayed output signal.
- LOWPASS controls the LP cutoff frequency on the delay path.
- RECORD LEVEL controls the input level.
- LINK I/O links Record and Playback Levels controls.
- PLAYBACK LEVEL controls the total signal output level.
- FLUX controls the level of simulated magnetic radiation emitted from the record head.
- WOW & FLUTTER controls the speed and gain modulations and fluctuations.
- NOISE controls the level of added modeled noise but not noise modulations and signal additive noise.

Discussion
TheoM Pretty sparse review sorry.. that was pretty uninformative. FWIW i disagree and would give it at least an 8 anyway.
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jam92189 ha I fully redid the review I decided to really make myself use it for about a week and so far I like it I still say its not amazing but its a nice plugin.
Endor-8o8 I didn't like this plug...sounds too muddy, seems to be like a dirty distortion thant like a tape emu imo. I prefer the Roundtone, the Reelbus or for the more expensive one : the virtual tape machine from Steven Slate. Just my humble point of view...
jam92189 yes I agree but its a okay tape plugin not amazing I like reel bus and roundtone better to. its pretty okay though at times some sources just dont sound right with those two. and I dont have a ilok so no slate tape even though I have heard it and its pretty amazing.
sonicpowa Endor, if you hear dirty distortion maybe you are cranking up the knobs too much.
I think KMT is really good for subtle tape-like coloring and vibe. There are and will be better ones, but I rate it at least 8.
jam92189 honestly I want to give it a 7.5 or something only for a really stupid reason. but yes if your hearing it mud up and distort turn it down also you can set the VU meter. so if you are putting stuff it really hot you can make it have more headroom to. but its a good plugin not bad at all I use it a lot of vocals lately. yes the distortion can get over distorted easy but that's why you can control headroom and distortion.
Endor-8o8 What I'm saying is that it just sounds too harsh and coarse to my ears, tape sound tends to be more smooth/round and gently compressed. To me Roundtone (for example) is less agressive and more subtle. I would give MPX a 7 not more, also considering the fact that it's not worth the price Waves is selling it (200$). But once again it's my subjective point of view, just my feeling after trying it so I can also understand that lot of people can fall in love with the MPX. Anyway, lot of kvr members still say that there are no true tape emu for the moment...pretty hard quest !!
jam92189 its not a great tape emulation to me it feels kinda like a saturation plus eq with some delays if you want em. but its okay not bad but not amazing I do like the other two mentioned before way better but this is a good plugin effect. not a amazing tape emulation but a decent tool and effect.
jam92189 yea that is basically the way I think of this plugin I love my roundtone and reelbus. yea they are not perfect but they sound great this works on some things that those don't so I am more than happy they are all tools.
sonicpowa I like subtle vibe it delivers, for instance "Mastering Soft Clean Compression" -preset.
If that preset is harsh and coarse check your gain staging.
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