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User Manual for TUBE-TECH HLT2AM Hi & Lo Shelving Analog EQ with T-Filter Click to enlarge the picture
Contents of the user manual for the TUBE-TECH HLT2AM Hi & Lo Shelving
- Product category: Equalizers TUBE-TECH
- Brand: TUBE-TECH
- 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 TUBE-TECH Equalizers
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User manual for the TUBE-TECH HLT2AM Hi & Lo Shelving 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 TUBE-TECH 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 TUBE-TECH 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 TUBE-TECH product will considerably shorten its lifespan!
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Product description The HLT2AM Hi & Lo Shelving Analog EQ from Tube-Tech is a stereo unit combining variable high and low shelving EQ and filters with an adjustable midrange T-Filter. The shelving filters are designed around a high gain tube amplifier. The T-filter is a passive filter placed between the shelving filters and the output amplifier. All three sections are supplied with an in/out switch. The low and high cut filters are also passive with a slope of 6 dB/octave. A bypass switches the whole filter section out of the amplifier circuit, keeping the output stage in the circuit. This unit has stepped pots and a smaller and more detailed range for the shelf and T- filter EQ.When the low end goes up, the high end goes down and vice versa. When the potentiometer is turned clockwise, the high frequencies are boosted and the low frequencies are attenuated. When the potentiometer is turned counter clockwise, the low frequencies are boosted and the high frequencies are attenuated. The unit is all tube based except for the power supply. Input and output have fully floating transformers. All DC voltages are stabilized, except the anode voltage for the output stage. -
- Tube-based push-pull amplifier
- Conductive plastic potentiometers
- In- and output are transformer balanced and fully floating
- All-tube active/passive EQ
Table of Contents
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Technical parametersTUBE-TECH HLT2AM Specs | Frequency Response | @ -3 dB: 5 Hz to 55 kHz | | Low Noise | < -80 dBU @ 0 dB gain | | CMRR | > 60 dB @ 10 kHz | | Filters | Low cut: 18, 25, 40, 60, 85 Hz, 6 dB/octave
Low shelving: 18, 37, 80, 180, 370, 800 Hz, Gain: +/‑12 dB
High shelving: 1, 2, 5, 10, 15, 22 kHz, Gain: +/‑12 dB
T.-filter: 0.5, 1, 2 kHz, Gain: +4/-7 dB
High cut: 12, 15, 18, 20, 25 kHz, 6 db/octave
Tracking between channels: +/-0,3 dB | | Input Impedance | >10 kOhms | | Output Impedance | < 60 Ohms | | Dimensions | 19 x 3.5 x 6.5" (48 x 8.9 x 17 cm) | | Weight | 9.5 lb (4.3 kg) |
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