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GML 8304 4-Channel Microphone Preamp with 8355 Power Supply

GML 8304 4-Channel Microphone Preamp with 8355 Power Supply

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GML 8304 Four Channel Microphone Preamp. GML Microphone Preamplifiers are world renowned for their life-like realism, high resolving power, and reference-standard transparency.
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GML 8304 Four Channel Microphone Preamp

GML Microphone Preamplifiers are world renowned for their life-like realism, high resolving power, and reference-standard transparency. Their all-discrete, bipolar transistor circuit topologies are completely transformerless with no FET's, IC's, or electrolytic capacitors in the signal path. Even the outputs are direct-coupled; time-proven active servos remove DC without adding any artificial color. 15dB to 70dB of Gain is front panel selectable in accurate 5dB steps. A +24dBv CLIP indicator warns of any impending overloads and switchable phantom powering is built in. Both the 8302 two-channel mic preamp as well as the 8304 four-channel version fit compactly in only 1U of rack space, and use one external GML 8355 power supply is now included with this product.

Power supply now included!


 

More Information
Product Name GML 8304 4-Channel Microphone Preamp with 8355 Power Supply
Brand GML
Condition New
UPC 880933000557
Shipping Option Free Shipping to the Continental U.S.
  • INPUT - 1kΩ balanced XLR, 80 dB common mode rejection at 100Hz & 10kHz, +12.4 dBv maximum input before clipping (minimum gain setting)
  • THROUGHOUT - 50 volts/microsecond minimum, symmetrical at 30 dB gain, Distortion: Maximum SMPTE intermodulation at +20 dBv output level; 0.0015% at 30 dB gain /0.007% at 70 dB gain, Effective input noise: < -126.5 dBv with 150 ohm source / < -129.5 dBv with 0 ohm source (measurements at 400Hz & 30 KHz, 12 dB/octave high & low-pass filters (ref: 0.775v), Frequency response: +0, -0.2db @ 10 Hz & 50 KHz / +0, -0.3db @ 1.7 Hz & 260 KHz, Phase shift: 22 degrees @ 10 Hz & 260 KHz
  • FORM FACTOR - Number of channels: 4 maximum (2 or 4 on order), Clip indicator: +24 dBv ±0.5 dB, Gain:10 to 65dB in 5db (±.25dB) steps, Front Panel Indicators: 4 red clip LED’s, 1 green power LED, Phantom: 48 volt switchable, 40 ma. available. Currently supplied with standard 6.81 KΩ, 1% resistors.
  • OUTPUT - +27.4 dBv at clip, unbalanced XLR (pin 2 hot), 3 mv output offset max, stabilized by D.C. servo correction
  • OTHER - external power supply: +28 volts, separate ground and chassis connections at rear, Enclosure: 1.75"X 19" rack mounting, 10" deep. Satin grain, black anodized finish

GML 8304 4-Channel Microphone Preamp with 8355 Power Supply

Details

GML 8304 Four Channel Microphone Preamp

GML Microphone Preamplifiers are world renowned for their life-like realism, high resolving power, and reference-standard transparency. Their all-discrete, bipolar transistor circuit topologies are completely transformerless with no FET's, IC's, or electrolytic capacitors in the signal path. Even the outputs are direct-coupled; time-proven active servos remove DC without adding any artificial color. 15dB to 70dB of Gain is front panel selectable in accurate 5dB steps. A +24dBv CLIP indicator warns of any impending overloads and switchable phantom powering is built in. Both the 8302 two-channel mic preamp as well as the 8304 four-channel version fit compactly in only 1U of rack space, and use one external GML 8355 power supply is now included with this product.

Power supply now included!


 

More Information
Product Name GML 8304 4-Channel Microphone Preamp with 8355 Power Supply
Brand GML
Condition New
UPC 880933000557
Shipping Option Free Shipping to the Continental U.S.
Features
  • INPUT - 1kΩ balanced XLR, 80 dB common mode rejection at 100Hz & 10kHz, +12.4 dBv maximum input before clipping (minimum gain setting)
  • THROUGHOUT - 50 volts/microsecond minimum, symmetrical at 30 dB gain, Distortion: Maximum SMPTE intermodulation at +20 dBv output level; 0.0015% at 30 dB gain /0.007% at 70 dB gain, Effective input noise: < -126.5 dBv with 150 ohm source / < -129.5 dBv with 0 ohm source (measurements at 400Hz & 30 KHz, 12 dB/octave high & low-pass filters (ref: 0.775v), Frequency response: +0, -0.2db @ 10 Hz & 50 KHz / +0, -0.3db @ 1.7 Hz & 260 KHz, Phase shift: 22 degrees @ 10 Hz & 260 KHz
  • FORM FACTOR - Number of channels: 4 maximum (2 or 4 on order), Clip indicator: +24 dBv ±0.5 dB, Gain:10 to 65dB in 5db (±.25dB) steps, Front Panel Indicators: 4 red clip LED’s, 1 green power LED, Phantom: 48 volt switchable, 40 ma. available. Currently supplied with standard 6.81 KΩ, 1% resistors.
  • OUTPUT - +27.4 dBv at clip, unbalanced XLR (pin 2 hot), 3 mv output offset max, stabilized by D.C. servo correction
  • OTHER - external power supply: +28 volts, separate ground and chassis connections at rear, Enclosure: 1.75"X 19" rack mounting, 10" deep. Satin grain, black anodized finish
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