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User Manual for Demeter HBP-1J H Series Tube Bass Preamplifier with Jensen Transformer Click to enlarge the picture
Contents of the user manual for the Demeter HBP-1J H Series Tube Bass
- Product category: Bass Amplifiers Demeter
- Brand: Demeter
- 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 Demeter Bass Amplifiers
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User manual for the Demeter HBP-1J H Series Tube Bass 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 Demeter 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 Demeter 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 Demeter product will considerably shorten its lifespan!
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Product description The HBP-1J with Jensen Transformer from Demeter is a hand-wired preamp specifically designed for bass guitar that provides both tube and solid-state tones. It features a high voltage (250V) tube front end with preamp gain and passive tone controls, a two-band solid-state parametric equalizer tuned for bass, and an active effects loop with send and return level controls. In addition, there is a balanced XLR output switchable for a mic or line level signal to connect to a mixer/recording console or a power amp with an XLR input, as well as both balanced and unbalanced 1/4" TRS line level outputs for connection to an amplifier. A dedicated tuner output and a mute switch allow you to tune up silently. - Balanced and Unbalanced Outputs
- A fully balanced XLR line output is provided to feed the audio signal from your bass to an external mixing console
- Active and Passive Inputs
- Separate inputs are provided to connect active and passive instruments
- Tube Front End
- The HBP-1 uses a 12AX7a tube on the front end for gain and passive tone controls
- Adjustable Effects Loop
- External effects can be connected through the active effects loop. Send and return level controls are provided on the front panel
In the Box Demeter HBP-1J H Series Tube Bass Preamplifier with Jensen Transformer Limited 1-Year Warranty Table of Contents
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Technical parametersDemeter HBP-1J Specs | Inputs | 1/4" Active Instrument x1 1/4" Passive Instrument x1 1/4" FX Return x1 IEC Power Cable x1 | | Outputs | 1/4" Tuner x1 1/4" FX Send x1 1/4" Unbalanced Line Out x1 XLR Balanced Line Out x1 | | Controls | Front Panel: Volume Control x1 Treble Control x1 Middle Control x1 Bass Control x1 Presence Control x1 EQ In/Out Switch x1 EQ Low Frequency dB Level Control x1 EQ Low Frequency Hz Control x1 EQ Low Frequency Width Control x1 EQ Mid Frequency dB Level Control x1 EQ Mid Frequency Hz Control x1 EQ Mid Frequency Width Control x1 FX Loop In/Out Switch x1 FX Send Level Control x1 FX Return Level Control x1 Mute On/Off Switch x1 Power On/Off Switch x1 Rear Panel: Line Level/Mic Level Switch x1 Ground Lift Switch Voltage Selector Switch | | Input Impedance | 1 MOhm | | Minimum Load Impedance | 600 ohms | | Maximum Output | +24 dBV @ 600 ohms + 28 dB | | Gain | Adjustable to +10 dB Mid 440 Hz to 4 kHz EQ Gain: +/-15 dB | | Signal to Noise Ratio | -80 dB | | THD | 0.5% | | Frequency Response | 10 Hz to 40 kHz | | Tube | 12AX7a x1 | | Parametric Equalizer | Q or width continuously variable Low 40 to 440 Hz Mid 440 Hz to 4.4 kHz | | Operating Voltage | 115 V / 230 V AC switchable | | Filament | 12.6 V fully regulated | | Power Supply | 250 V fully regulated | | Dimensions (WxDxH) | 19 x 10.5 x 1.8" (482.6 x 266.7 x 45.7 mm) | | | | Package Weight | 12.0 lb | | Box Dimensions (LxWxH) | 21.6 x 15.9 x 7.3" |
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