Manley Labs CORE Tube Reference Channel Strip

Manley Labs CORE Tube Reference Channel Strip

Manley Labs CORE Tube Reference Channel Strip

B&H # MAMCORE MFR # MCORE
Important Notice: This item is non-cancelable and non-returnable
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Expected availability: 7-14 business days 
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Product Highlights

  • Single Channel
  • Mic Preamp & Compressor from VOXBOX
  • Triode Vacuum Tube
  • Hand-Wound Custom Iron Input Transformer
  • Class A Circuit Topology for Mic Preamp
  • ELOP Compression Circuit
  • Baxandall Equalizer
  • FET "Brickwall" Limiter
  • High Headroom and Output Capability
  • CNC Machined 1/4" Thick Steel Chassis
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  • 1Description
The CORE Tube Reference Channel Strip from Manley Labs is a single-channel signal processor with an intuitive front panel layout that allows for quick and easy adjustment over mic preamp, compressor, EQ, and limiter settings. The CORE incorporates many of Manley's technological innovations including the preamp from the VOXBOX, featuring a hand-wound iron transformer with nickel laminations, negative feedback gain circuit, and triode vacuum tube circuit. The direct input offers an all discrete solid-state path with a 10 MΩ impedance.

The ELOP compressor, also borrowed from the VOXBOX, is an electro-optical (LA-2A style) limiter with a set ratio of 3:1. While other manufacturer's designs have the compressor post mic pre, the Core places the circuit before the mic preamp making it near impossible to clip. This also shortens the signal path and ensures a quality, low noise signal.

The unit also features a Baxandall shelf EQs with a sweepable mid frequency and a fast FET "brickwall" limiter. The large VU meters offer a 3-way toggle switch for monitoring the compressor output, gain reduction and main output. Handmade in the USA, the unit is housed in 2U steel chassis with a CNC machined 1/4" faceplate and inlaid with laser engraved inserts. The CORE ships with an IEC power cable.

Preamplifier
  • Input Level: Input attenuator or variable pad for mic, line, and DI
  • Mic/Line: Switches between microphone and line/DI input
  • High Pass Filter Switch: 120 Hz
  • Mic Preamp Selectable Gain: 40 to 60 dB
  • Line Amp Selectable Gain: 20 to 40 dB
  • 48 Volt Phantom: 48v power for microphones requiring phantom power
  • Phase reverse switch
  • Direct In: 1/4" direct Injection (DI) input for instruments
Compressor
  • ELOP compressor (Electro-Optical Limiter)
  • 3.1 ratio
  • Continuously variable attack, release and, threshold control knobs
  • Silent bypass switch
EQ
  • Low Shelf Baxandall EQ: 80 Hz ±12 dB
  • High Shelf Baxandall EQ: 12 kHz ±12 dB
  • Sweepable Midrange Bell EQ: Switchable 100 Hz to 1 kHz or 1 to 10 kHz ±10 dB
Limiter
  • FET "brickwall" limiter
  • High ratio
  • Fast attack
  • Continuously variable threshold and release control knobs
  • Peak limit LED indicator
  • Output Range: -10 to +4 dB
VU Meter
  • Large illuminated analog display
  • 3-way Toggle Switch: O/P 1, O/P 2, and GR
  • O/P 1: Direct output of preamp and compressor
  • O/P 2: Main output
  • GR: Compressor gain reduction
Additional Features
  • Auto Mute Warm-up Delay: 30 seconds
  • Hand-wound Manley iron input transformer
  • Silent conductive plastic input attenuator
  • Class A circuit topology
  • Triode vacuum tubes on 300V B+ power supply
UPC: 890833001851
In the Box
Manley Labs CORE Tube Reference Channel Strip
  • IEC Power Cable
  • Limited 90-Day Warranty, Extends to 5 Years with Registration
  • Table of Contents
    • 1Description
    Input / Output 1 x Mic Input: Balanced transformer coupled XLR at 1.2 kΩ
    1 x Line Input: Balanced XLR at 10 kΩ
    1 x Direct Input: Unbalanced 1/4" at 10 MΩ
    1 x Main Output: Balanced XLR at 50 Ω
    1 x Direct Output: Balanced XLR at 50 Ω
    1 x Insert: 1/4" TRS send at 50 Ω return at 13 kΩ
    EQ Section Baxandall Low Shelf: 90 Hz ±12 dB
    Baxandall High Shelf: 12 kHz ±12 dB
    Mid-Range Switchable Bell EQ: 100Hz to 1kHz or 1kHz to 10kHz ±10 dB
    Compressor Maximum Gain Reduction: 16 dB
    Attack Time: 14 to 150 ms for 6dB compression
    Release Time: 2.63 to 150 ms for 6dB compression
    Limiter Attack Time: 115 μs
    Release Time: 2.3 to 300 ms
    Tubes 1 x 12AX7WA for gain
    1 x 6922 White Follower output
    Maximum Input Maximum Mic Input
    Low Gain Setting: -5 dBu or 435mV RMS @ 0.5% THD
    High Gain Setting: -25 dBu or 44mV RMS @ 0.5% THD
    Max Line Input
    Low Gain Setting: +13 dBu or 3.5V RMS @ 0.5% THD
    High Gain Setting: -8 dBu or 300mV RMS @ 0.5% THD
    Direct Input
    Low Gain Setting: +24 dBu or 12V RMS @ 0.5% THD
    High Gain Setting: +17 dBu or 5.5V RMS @ 0.5% THD
    Insert Return: +20 dBu or 7.8V RMS @ 0.5% THD
    Maximum Output Maximum Preamp Output (Insert Send): +35 dBu or 43V RMS @ 0.5% THD
    Maximum Main Output: +20 dBu
    Main Output Impedance: 50 Ohms
    Direct Output Headroom (Referenced to +4 dBv): 31 dB
    Main Output Headroom (Referenced to +4 dBv): 16 dB
    Dynamic Range >90 dB
    Frequency Response (Audio) 10 Hz to 20 kHz ±0.5 dB
    THD & Noise THD & Noise (1kHz @ +4 dBm): 0.02% at Low Gain setting
    Noise Floor Noise Floor (Gain Set to Minimum): -70 dB wideband typical
    Gain Microphone Input: 40 or 60 dB
    Line Input: 20 or 40dB
    EQ and Limiter Section: 10 dB
    Power Universal Power Supply: 90 to 254 VAC
    Power Consumption: 35 W
    Mains Voltage Frequency: 50~60 Hz
    Rackmountable 2U
    Dimensions (W x H x D) 19.0 x 3.5 x 7.0" / 48 x 9.0 x 18 cm
    Weight 8 lb / 4 kg
    Packaging Info
    Package Weight 11.7 lb
    Box Dimensions (LxWxH) 23.4 x 11.1 x 8.9"

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