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Manley Labs Nu Mu Stereo Limiter Compressor

Manley Labs Nu Mu Stereo Limiter Compressor

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  • Details
  • Features
  • Tech Specs
  • Reviews

Building upon their proud heritage, the Manley Nu Mu® merges the esoteric “T-Bar mod” all-tube front end from the legendary Manley Variable Mu® and makes it standard followed by a new solid state audio chain for the smoothest dynamics action coupled to the punchiest sonic path. Featuring Manley’s new HIP function, the Nu Mu finesses dynamic control to bring up lower level details without knocking the life out of exciting transients. Smartly engineered to build efficiently and esthetically designed to elicit ravishing compliments from your clients, both visually and ergonomically, the Manley Nu Mu breaks new ground in performance and value, all proudly handbuilt in California, of course!

Output Control

The OUTPUT control is available on both the L and R channels. It adjusts the output level of that audio channel. Unity gain is about the ninth marking, or 11 o'clock.

Threshold Control

The THRESHOLD control is available on both the L and R channels. THRESHOLD or gain reduction sets the necessary amplitude for compression or limiting to take effect. The most extreme effect is when the control knob is set to MIN or fully counter-clockwise.

Compress / Limit Switch

This switch allows the Nu Mu to use two different compression ratios, offering either Compression at approximately 3:1 when the switch is engaged and illuminated, or Limiting at approximately a 10:1 ratio.

In / Bypass Switch

The BYPASS switch in the Nu Mu is a ‘Hardwire’ bypass for maximum performance. If the switch is engaged and illuminated to the “IN” position the audio will pass through either the Limiter or Compressor, so all the front panel controls will function. Use this switch to verify that the limiting or compressing is not messing up the original sound but enhancing it or at least leveling the volume.

VU Meter

The Large custom VU meters allow easy tracking of both channels with the Nu Mu. It shows the amount of gain reduction in dB from the 0 dB mark, when the switch (7) is set to REDUCTION. When this switch is selected to O/P and illuminated, the meter measures the output in decibels.

Hip Control

The "Hip" control allows compression to happen at lower volumes (lower in the dynamic range spectrum) but leaves the louder dynamics alone while still compressing the overall signal. You get louder soft sections and original dynamics of the louder sections. Previously the only way to get around this issue has been parallel compression, where the compressed signal is mixed with the uncompressed signal. Our "Hip" control achieves a similar effect while being easier to use, requiring less hardware (no need for extra mixing externally).

Link Function

When The LINK function is used it links the two Stereo channels together. The Left channel controls become the master linking THRESHOLD, ATTACK & the RECOVERY CONTROLS.

Input Level Switch

The Input Level is controlled by a toggle switch. There is an Input Level control for each cannel. Three levels of attenuation are available. +3dB, 0dB and -3dB.

HP SC Switch

The High Pass Side Chain filter is factory set a 100Hz. When this switch is engaged and illuminated, everything above 100Hz will have the effect of limiting or compression. Useful if you want the bass to come through with full impact and limit or compress everything else.

Power Switch

The Power Switch glows a soft blue color when an IEC power lead is connected to the unit. This indicates that the Nu Mu is in STANDBY mode. Engaging the power switch takes the Nu Mu out of standby mode and into warm-up mode. The power switch will illuminate to a brighter blue and the backlit VU meters will start to flash. This warm-up process last 30 seconds, after which the MUTE relays will lift and the VU meters will stop flashing.

More Information
Product Name Manley Labs Nu Mu Stereo Limiter Compressor
Brand Manley Labs
Condition New
MPN MNUMU
UPC 713803229423
Shipping Option Free Shipping to the Continental U.S.
  • Transformer: Manley IRON input transformers
  • Tubes: 4 x Hand-matched 6BA6 vacuum tubes
  • Connectors: Balanced XLR input/output Input-level preset 3-way switches
  • Controls: Continuously variable output-level controls Continuously variable threshold controls
  • Manley IRON® input transformers
  • 4 x hand-matched 6BA6 vacuum tubes
  • Balanced XLR inputs & outputs
  • Manley HIP function raises soft dynamics without squashing louder passages
  • High Voltage Switched Mode Power Supply custom designed for our vacuum tube audio circuits
  • INPUT Level Preset 3-way switches -3dB, 0, +3dB
  • Continuously variable OUTPUT level controls
  • Unity Gain set INPUT to "0" and OUTPUT control to 11 o’clock. (Input source Z= 150 Ohms, Output load Z= 100 kOhms)
  • Maximum input level: (1 kHz Sine, <0.3% THD+N)
     -3 = +25 dBu
      0 = +21 dBu
    +3 = +18 dBu
  • Maximum GAIN: 13dB
  • GAIN makeup: 10dB (gain above unity)
  • Output Headroom: 23dB (referenced to +4dBu)
  • Variable ATTACK control: 13msec - 130msec
  • RECOVERY switch 5 steps: 0.1s, 0.16s, 0.32s, 0.64s, 1.7sec.
  • Continuously variable THRESHOLD controls
  • Hardwired Relay Bypass Switch
  • Ratio Mode switches between LIMIT (1.5:1 to 12:1) or COMPRESS (1.2:1 to 3:1)
  • HP SC: High Pass Side Chain Filter -3dB @ 100Hz @ 6dB per Octave
  • Stereo Link establishes Left-Master dynamic control for THRESHOLD, ATTACK, and RECOVERY controls
  • Beautiful illuminated stereo VU meters read Gain Reduction or Output Level
  • Sidechain INSERT per channel via 1/4" TRS jack TIP=SEND, RING=Return, SLEEVE=Ground
  • Maximum Output: +27dBu (18Vrms) into 100K Ohm load; +24.5dBu (13Vrms) into 600 Ohm load. (1Khz Sine, < 0.3% THD+N, BW 20Hz - 20kHz).
  • Frequency Response: - 0.8dB @ 20Hz, -0.5dB @ 50kHz
  • Total Harmonic Distortion: <0.05% THD+N (1kHz Sine, +4dBu, BW: 20Hz - 22kHz)
  • Noise floor: -85dB typical (BW: 20Hz - 22kHz)
  • Dynamic Range: 112dB
  • Signal to Noise Ratio: 89dB (referenced to +4dBu)
  • Common-Mode Rejection Ratio (CMRR): 74dB (BW: 20Hz - 22kHz, +4dBu, 1kHz Sine)
  • Output Impedance: 100 Ohms
  • Input Impedance: -3dB= 1 kOhms, 0dB= 2.5 kOhms, +3dB= 4.5 kOhms
  • AUTOMUTE warmup delay: 30 Seconds
  • Power consumption: 35 Watts
  • Standby Power Consumption: 0.5 Watts
  • Operating mains voltage: 90 to 254 VAC (internal universal supply)
  • Mains Voltage Frequency: 50-60Hz
  • Dimensions: 19" x 3 1/2" x 7" (occupies 2u)
  • Unit Weight: 8.5 lbs.
  • Shipping weight: 11.5 lbs.

Manley Labs Nu Mu Stereo Limiter Compressor

Details

Building upon their proud heritage, the Manley Nu Mu® merges the esoteric “T-Bar mod” all-tube front end from the legendary Manley Variable Mu® and makes it standard followed by a new solid state audio chain for the smoothest dynamics action coupled to the punchiest sonic path. Featuring Manley’s new HIP function, the Nu Mu finesses dynamic control to bring up lower level details without knocking the life out of exciting transients. Smartly engineered to build efficiently and esthetically designed to elicit ravishing compliments from your clients, both visually and ergonomically, the Manley Nu Mu breaks new ground in performance and value, all proudly handbuilt in California, of course!

Output Control

The OUTPUT control is available on both the L and R channels. It adjusts the output level of that audio channel. Unity gain is about the ninth marking, or 11 o'clock.

Threshold Control

The THRESHOLD control is available on both the L and R channels. THRESHOLD or gain reduction sets the necessary amplitude for compression or limiting to take effect. The most extreme effect is when the control knob is set to MIN or fully counter-clockwise.

Compress / Limit Switch

This switch allows the Nu Mu to use two different compression ratios, offering either Compression at approximately 3:1 when the switch is engaged and illuminated, or Limiting at approximately a 10:1 ratio.

In / Bypass Switch

The BYPASS switch in the Nu Mu is a ‘Hardwire’ bypass for maximum performance. If the switch is engaged and illuminated to the “IN” position the audio will pass through either the Limiter or Compressor, so all the front panel controls will function. Use this switch to verify that the limiting or compressing is not messing up the original sound but enhancing it or at least leveling the volume.

VU Meter

The Large custom VU meters allow easy tracking of both channels with the Nu Mu. It shows the amount of gain reduction in dB from the 0 dB mark, when the switch (7) is set to REDUCTION. When this switch is selected to O/P and illuminated, the meter measures the output in decibels.

Hip Control

The "Hip" control allows compression to happen at lower volumes (lower in the dynamic range spectrum) but leaves the louder dynamics alone while still compressing the overall signal. You get louder soft sections and original dynamics of the louder sections. Previously the only way to get around this issue has been parallel compression, where the compressed signal is mixed with the uncompressed signal. Our "Hip" control achieves a similar effect while being easier to use, requiring less hardware (no need for extra mixing externally).

Link Function

When The LINK function is used it links the two Stereo channels together. The Left channel controls become the master linking THRESHOLD, ATTACK & the RECOVERY CONTROLS.

Input Level Switch

The Input Level is controlled by a toggle switch. There is an Input Level control for each cannel. Three levels of attenuation are available. +3dB, 0dB and -3dB.

HP SC Switch

The High Pass Side Chain filter is factory set a 100Hz. When this switch is engaged and illuminated, everything above 100Hz will have the effect of limiting or compression. Useful if you want the bass to come through with full impact and limit or compress everything else.

Power Switch

The Power Switch glows a soft blue color when an IEC power lead is connected to the unit. This indicates that the Nu Mu is in STANDBY mode. Engaging the power switch takes the Nu Mu out of standby mode and into warm-up mode. The power switch will illuminate to a brighter blue and the backlit VU meters will start to flash. This warm-up process last 30 seconds, after which the MUTE relays will lift and the VU meters will stop flashing.

More Information
Product Name Manley Labs Nu Mu Stereo Limiter Compressor
Brand Manley Labs
Condition New
MPN MNUMU
UPC 713803229423
Shipping Option Free Shipping to the Continental U.S.
Features
  • Transformer: Manley IRON input transformers
  • Tubes: 4 x Hand-matched 6BA6 vacuum tubes
  • Connectors: Balanced XLR input/output Input-level preset 3-way switches
  • Controls: Continuously variable output-level controls Continuously variable threshold controls
Tech Specs
  • Manley IRON® input transformers
  • 4 x hand-matched 6BA6 vacuum tubes
  • Balanced XLR inputs & outputs
  • Manley HIP function raises soft dynamics without squashing louder passages
  • High Voltage Switched Mode Power Supply custom designed for our vacuum tube audio circuits
  • INPUT Level Preset 3-way switches -3dB, 0, +3dB
  • Continuously variable OUTPUT level controls
  • Unity Gain set INPUT to "0" and OUTPUT control to 11 o’clock. (Input source Z= 150 Ohms, Output load Z= 100 kOhms)
  • Maximum input level: (1 kHz Sine, <0.3% THD+N)
     -3 = +25 dBu
      0 = +21 dBu
    +3 = +18 dBu
  • Maximum GAIN: 13dB
  • GAIN makeup: 10dB (gain above unity)
  • Output Headroom: 23dB (referenced to +4dBu)
  • Variable ATTACK control: 13msec - 130msec
  • RECOVERY switch 5 steps: 0.1s, 0.16s, 0.32s, 0.64s, 1.7sec.
  • Continuously variable THRESHOLD controls
  • Hardwired Relay Bypass Switch
  • Ratio Mode switches between LIMIT (1.5:1 to 12:1) or COMPRESS (1.2:1 to 3:1)
  • HP SC: High Pass Side Chain Filter -3dB @ 100Hz @ 6dB per Octave
  • Stereo Link establishes Left-Master dynamic control for THRESHOLD, ATTACK, and RECOVERY controls
  • Beautiful illuminated stereo VU meters read Gain Reduction or Output Level
  • Sidechain INSERT per channel via 1/4" TRS jack TIP=SEND, RING=Return, SLEEVE=Ground
  • Maximum Output: +27dBu (18Vrms) into 100K Ohm load; +24.5dBu (13Vrms) into 600 Ohm load. (1Khz Sine, < 0.3% THD+N, BW 20Hz - 20kHz).
  • Frequency Response: - 0.8dB @ 20Hz, -0.5dB @ 50kHz
  • Total Harmonic Distortion: <0.05% THD+N (1kHz Sine, +4dBu, BW: 20Hz - 22kHz)
  • Noise floor: -85dB typical (BW: 20Hz - 22kHz)
  • Dynamic Range: 112dB
  • Signal to Noise Ratio: 89dB (referenced to +4dBu)
  • Common-Mode Rejection Ratio (CMRR): 74dB (BW: 20Hz - 22kHz, +4dBu, 1kHz Sine)
  • Output Impedance: 100 Ohms
  • Input Impedance: -3dB= 1 kOhms, 0dB= 2.5 kOhms, +3dB= 4.5 kOhms
  • AUTOMUTE warmup delay: 30 Seconds
  • Power consumption: 35 Watts
  • Standby Power Consumption: 0.5 Watts
  • Operating mains voltage: 90 to 254 VAC (internal universal supply)
  • Mains Voltage Frequency: 50-60Hz
  • Dimensions: 19" x 3 1/2" x 7" (occupies 2u)
  • Unit Weight: 8.5 lbs.
  • Shipping weight: 11.5 lbs.
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