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Although having few controls makes the unit look simple, they can still take a bit of getting used to. You'll notice there's no ratio setting, as compression behaviour here is a combination of the time constants and signal level. This splits the stereo input signal into sum and difference elements, with the left channel controlling mono and the right governing the stereo aspect of the signal.
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In addition, the 670 adds dual stereo and linked operation and also the vertical-lateral option, like the original hardware. On to the compressors, then, and the 660 and 670 are both simple designs, with input and output levels, threshold, and six time-constant settings that control attack and release. Overall, both EQs sounded very similar to other Pultec emulations we compared them to. We were curious about the Mains Hum setting and came to the conclusion that it also added a tiny bit of hiss. The great thing about these EQs is you can do this without it sounding harsh.
#WAVES SSL REVIEW MUSICRADAR PRO#
Spinning through the ten EQP-1A and three MEQ-5 presets gives not only an idea of how they sound but also how far a pro mixer chooses to push their settings to get the desired result. However, other aspects of the Pultec sound are. Waves rightly points out that due to their transformer stages, the EQs have a gentle roll-off at high frequencies and the plug-ins emulate this, though it's not immediately obvious when you load them up. The second band offers cut or 'dip' at 11 fixed frequencies (200Hz to 7kHz), and the remaining band is boost-only at five fixed mid-to-high frequencies (1.5kHz to 5kHz). Band one is boost-only at five fixed frequencies in the low- to mid-range (200Hz to 1kHz). The MEQ-5 fills in the mid-range gaps left by the EQP, with three fixed Q bell-shaped bands. Finally, the third band offers a high-cut with three frequencies and variable attenuation. Next is a bell-shaped section with variable bandwidth, offering 18dB boost at seven fixed frequencies (3kHz to 16kHz). The first band is a low shelf with four fixed frequencies (20Hz to 100Hz) and simultaneous 18dB boost and attenuation. We'll kick things off with a look at the EQP-1A, which is an idiosyncratic 3-band EQ. There are also a few modern conveniences that the original units didn't enjoy: on the PuigTecs, you'll find output levels and VU metering, and all plug-ins have optional mains hum emulation in 50Hz and 60Hz flavours.