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User Manual for Manley Labs TNT 2-Channel Microphone Preamp Click to enlarge the picture
Contents of the user manual for the Manley Labs TNT 2-Channel Microphone Preamp
- Product category: Microphone Preamps Manley Labs
- Brand: Manley Labs
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Manley Labs Microphone Preamps
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User manual for the Manley Labs TNT 2-Channel Microphone Preamp contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Manley Labs product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Manley Labs user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Manley Labs product will considerably shorten its lifespan!
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Product description The TNT 2-Channel Microphone Preamp from Manley Labs offers two distinct preamps with vastly different characteristics allowing for a broad spectrum of colors for processing audio. The tube channel offers a transparent sound with tube warmth, while the cool channel's solid-state design offers a palette of clean tones to heavy distortion. The unit is constructed with professional-grade components, hand-wound transformers and hand-selected tubes. The tube channel is based on the Manley Slam! JFET / Vacuum Tube Triode cascade circuit that allows for high gain, low noise, and low distortion without using negative feedback. The three variable impedance settings offer near-zero gain change, which allows the user to focus on the differences in mic and cable characteristics. Inspired by vintage British designs, the solid-state cool channel uses opposite topologies from two different preamps. These high and low impedance preamps are used in tandem. The preamps can be controlled via the variable impedance switch. The high impedance preamp operates in voltage mode and uses a paralleled cascaded ultra-low-noise FET / op-amp circuit. The low impedance preamp operates in current mode with a special Lundahl input transformer, paired with an ultra-low noise, ultra-low distortion op-amp. With a medium impedance setting, both voltage and current preamps are engaged and blended at the output. The iron control knob reduces or exaggerates the effects of the custom-wound output transformer. The '60s / '70s color switch engages a circuit simulating the qualities of vintage discrete nonlinearities, tape overload (tape compression) and changes in frequency response. The front panel for both preamps feature phantom power, a high pass filter, a phase reversal switch, an instrument input, and LED indicators for level and overload. Hand-made in the USA, the unit is housed in a 1U steel chassis with a CNC-machined 1/4" faceplate that is also inlaid with laser-engraved inserts. The TNT ships with an IEC power cable. - Tube Channel
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- Class A tube preamp
- 48V phantom power
- Phase reverse switch
- 80 Hz high pass filter switch
- Variable impedance for microphone and instrument inputs
- Gain matching when switching impedances
- 1/4" instrument jack for direct injection (DI)
- Gain Switch: +20 to +70 dB (in +5 dB increments)
- Trim Knob: up to +10 dB of gain
- Cool Channel
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- Inspired by vintage British solid state design
- 48V phantom power
- Phase reverse switch
- High Pass Filter: Flat, 60 Hz, 120 Hz
- Variable impedance for microphone and instrument inputs
- 1/4" instrument jack for direct injection (DI)
- Gain Switch: +20 to +70 dB (in +5 dB increments)
- Trim Knob: up to +10 dB of gain
- Color Switch: Clean, '60s, and '70s
- Iron Knob: Variable knob to reduce or exaggerate the effects of the custom nickel output transformer
- Additional Features
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- LED Meters indicate signal presence, input overload, +10 output, +22 output (1st stage clipping)
- Cool Channel Output Mode Switch: Rear-panel toggle that sets both output level and whether XLR/1/4" jacks are balanced or unbalanced
UPC: 890833000168 In the Box Manley Labs TNT 2-Channel Microphone Preamp - IEC Power Cable
- Limited 90-Day Warranty, Extends to 5 Years with Registration
Table of Contents
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Technical parametersManley Labs MTNT Specs | Number of Channels | 2 | | Input & Output | Input
Tube Channel Mic: 1 x Combo XLR/1/4" Neutrik Connector
Cool Channel Mic: 1 x Combo XLR/1/4" Neutrik Connector
Tube Channel Instrument: 1 x 1/4"
Cool Channel Instrument: 1 x 1/4"
Output
Tube Channel: 1 x XLR transformer balanced
Tube Channel: 1 x 1/4" unbalanced (+4 dB)
Cool Channel: 1 x XLR transformer balanced
Cool Channel: 1 x 1/4" unbalanced (+4 dB) | | Gain Range | Tube Channel: +10 to +80 dB (20 to 70 dB in 5 dB steps)
Cool Channel: +10 to +80 dB (20 to 70 dB in 5 dB steps) | | Maximum Output | Tube Channel for 1% THD via balanced +4 XLR: +31 dBu
Cool Channel for 1% THD:
via balanced +4 XLR: 30 dBu
via unbalanced +4 output: 24 dBu
via unbalanced -10 output: 16 dBu | | Tubes | Tube Channel Vacuum Tubes: 1 x 12AT7EH + 1 x NOS 6414 or 6414W | | Input Impedance | Tube Channel Mic: 600, 2400, 10,000 Ω
Tube Channel Instrument: 300 k, 1 Meg, 3 Meg Ω
Cool Channel Mic: 300, 600, 2000, 2 Meg Ω
Cool Channel Instrument: 100 k, 300 k, 1 Meg, 3 Meg, 10 Meg Ω | | Frequency Response (Audio) | Tube Channel: (-1 dB) 10 Hz to 30 kHz; (-3dB) 5 Hz to 45 kHz
Cool Channel: (-1 dB) 15 Hz to 30 kHz; (-3dB) 5 Hz to 50 kHz | | THD & Noise | Tube Channel (1 kHz @ 20 dB gain): 0.035% typical (-68 dB)
Cool Channel (1 kHz @ 20 dB gain): 0.01% typical (-80 dB) no distortion products measurable, noise dominates measurement | | Noise Floor | Tube Channel: -60 dB typical referenced to +4 dBm
Cool Channel: -66 dB typical referenced to +4 dBm | | EIN | Tube Channel: -120 dB
Cool Channel: -126 dB | | S / N Ratio | Tube Channel @ 70 dB Gain: 95 dB (TRIM has major effect)
Cool Channel @ 70 dB Gain: 85 dB (TRIM has little effect) | | Distortion | Cool Channel Distortion @ 1 kHz using '60s / '70s switch:
1.5% typical with LED onset (+4 dBu out)
3% typical with LED fully lit (+7 dBu out) | | Power Specifications | 200 mA @ 120 VAC
30 W
Fuse: 500 mA Slo-Blo | | Rackmount | 1U | | Dimensions (W x H x D) | 19.0 x 1.8 x 10.0" / 48.3 x 4.4 x 25.4 cm | | Weight | 11.0 lb / 5.0 kg | | | | Package Weight | 13.0 lb | | Box Dimensions (LxWxH) | 22.5 x 14.6 x 7.9" |
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