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Manley Labs SLAM Mastering

Discussion in 'Dual Compressors' started by audiokid, Oct 24, 2011.

  1. audiokid

    audiokid Chris Staff Resource Member

    Mar 20, 2000
    Prince George, BC
    Home Page:

    The UMastering VersionU of the BSLAMB! incorporating detented and logable 12dB steps built with 1% metal film resistors on sealed gold-contact Grayhill switches is in full production.

    First off: no microphone preamps. You mastering engineers certainly don't need those.
    The mic pre and input select switch are removed and the switches become dedicated "mode" switches one each for the ELOPĀ® and the FET limiters.

    1) The ELOPĀ® limiter gets more Ratios - 10:1, 5:1, 3:1, 2:1 and something new called AutoHF which starts off as a 1.5:1 ratio and increases gradually to 10:1 for highs. This is something like a de-esser, and of course can work with the ELOP SC toggle at 200Hz for even more effect.

    2) The FET limiters get new modes that are 50%, NORM, LP Lim, BOTH, and CLIP.

    The "50%" setting mixes in the straight signal to the limited signal which is often difficult to do in a mastering environment and because the FET sidechain 'reads' off the output, the amount of gain reduction doubles. It resembles halving the FET ratio but is cleaner due to the mix.

    The "LP Lim" setting only comes into play for hot signals and reduces the depth of gain reduction for high freqs. This translates to - hot signals + moderate gain reduction = brighter, more present signal, less distortion, more balls. This mode allows more high frequencies to pass through without being limited.

    The "CLIP" setting introduces a fixed threshold clipper circuit set up about -2 dB DFS or +18 dBv at the XLR. Within normal usage "CLIP" generally prevents outputs from passing beyond +18 dBv, and 97% of the time, clips in a controlled fast-recovery manner before a converter would (in generally a less than desirable sounding way).

    Finally, the "BOTH" setting on the FET limiter engages both the "LP Limit" and the "CLIP" functions at the same time. This might be appropriate for metal and projects demanding intense volume. The "BOTH" mode is designed for situations where extreme processing and loudness is required but where attack, brightness and aggressiveness needs to be preserved or enhanced.

    TD="width: 100%"
    *Input Tubes: 2 x 12AT7A NOS GE specially selected by Manley Labs for lo-noise and stable bias
    *Output Tubes: 2 x 6414W NOS USA dual triodes
    *IO: MANLEY transformer coupled Balanced Inputs and Outputs
    *Gain: 20dB max Limiter Gain
    *Input Impedance:
    *FET Limiter: Attack: approx. 100?S; Release: 10mS to 2Sec; Ratio: better than 20:1
    *ELOP Limiter: Attack: approx. 10mS for 6dB GR; Release: 2.5 Sec; Ratio: 10:1
    *DAC: AES 24Bit 192KHz upsampling from 44.1, 48, 88.2, & 96KHz
    *A to D: 24Bit 96KHz (for now)
    *Frequency Response: 5Hz to 60KHz
    *Maximum Output : +32dBm, +30dBm (into 1K? load)

    Attached Files:

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