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CONGRATULATIONS! You are now the proud owner of the Crate TXB50 battery powered amplifier with Digital Signal Processing. At last, you can take your music with you and have great tone on the road. Not only is the TXB50 compact and portable, it also features a four band rotary eq, a switchable contour control and the incredible sound that has made Crate a household name among musicians. The high tech polymer enclosure makes the amplifier lighter and even more portable! Like all Crate products, yo
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FEATURES: • Four band rotary equalizer • Switchable Contour control • Crate’s Digital Signal Processing (DSP) • Insert jack for connecting external effects • CD Inputs for connecting background music • Headphones jack for silent operation • Internal rechargeable power supply for at least 8 hours of normal playing time, 2 hours at full output – fully recharges within 6 hours (when battery is fully discharged; shorter if partially charged) • Two-color battery status LED – red indicates low battery
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ABOUT THE POWER SUPPLY: The TXB50 uses a sealed lead-acid 12-volt battery as its internal power source. Unlike ni-cad batteries, this battery has no “memory” – it can be fully recharged at any time, without damage to the battery. When fully charged, the LED next to the power switch will illuminate yellow with the switch at the on position. The LED will change to red when the battery is low and needs recharging. When this happens, turn the amp off, connect the 15-volt charger to the charger jack
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ABOUT THE POWER SUPPLY (continued): The TXB50 may also be powered by using a 12-volt automotive cigarette lighter adapter, available at most electronic supply stores. Make certain that the polarity on the adapter matches what is shown below. POSITIVE NEGATIVE Connect the small round end of the adapter to the 12VDC Automobile adapter jack (#18, page 8), then connect the other end of the adapter into the vehicle’s cigarette lighter socket. (In some vehicles, the ignition switch must be in the “on
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THE FRONT PANEL: INPUT EQUALIZATION INPUT GAIN CONTOUR LOW LOW HIGH HIGH MID MID –12 +12 –12 +12 –12 +12 –12 +12 ACTIVE TXB50 1 2 3 4 5 6 7 8 1. INPUT: Connect an active or passive 5. LOW: Use this control to adjust the instrument here by means of a shield- low frequency level of the amplifier. ed signal cable terminated with a 1/4” This control provides a 19dB range of connector. cut or boost at 60Hz. 2. GAIN: Use this control to adjust the 6. LOW MID: Use this control to adjust input signal le
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MASTER DSP LEVEL MODE LEVEL CD INPUT INSERT POWER FUNK-WAH FLANGE OCTAVE CHORUS CHO/HALL ECHO ROOM DELAY HALL BASS BUS 9 10 11 12 13 14 15 16 9. MASTER LEVEL: Use this control to player may need to be attenuated for a adjust the overall output of the amplifier. suitable mix with the input channels – see the notes on page 10. 10. DSP MODE: Use this control to select the type of Digital Signal Processing 13. INSERT: Use this jack to connect an (DSP) effect applied to the signal. The external effec
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RING TIP RING TIP THE REAR PANEL: DC CHARGER DC CIGARETTE PLUG LIGHTER ADAPTOR LIT WHEN CHARGING 15V DC 12V DC POSITIVE NEGATIVE 17 18 17. DC CHARGER PLUG, 15VDC: Plug the 18. DC CIGARETTE LIGHTER ADAPTER, 12 small round connector of the ACwall VDC: Plug the small round connector of the adapter into this jack to charge the internal optional 12-volt car adapter into this jack to battery. The LED next to the jack glows red play the amplifier from a vehicle, instead of when the amp is charging.
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SUGGESTED SET-UPS: The TXB50 can be used in a variety of different ways, some of which are shown below and on the following page. Use these ideas to fuel your imagination for the setup which best suits your needs. Idea 1 – Play along, with external effects and backup: Connect an instru- ment (bass, guitar, keyboard) to the Input jack. (This high-Z input works with all types of pickups, from Piezo to active types.) Connect a tape player or CD player to the CD Input jacks. Connect the external eff
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SUGGESTED SET-UPS (CONTINUED): Idea 3 - Music Playback: Connect the outputs of a CD player or tape deck to the Input jack. (Use a dual RCA-to-mono 1/4” adapter as shown below.) Use the gain, eq and level controls to adjust the sound as desired. CD PLAYER INPUT EQ, COMP/LMTR INSERT Notes: • When a tape player or CD player is connected to the CD Input jacks, the output of the player may need to be adjusted by means of its out- put level control (if it has one), or by an external attenuator/preamp
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SYSTEM BLOCK DIAGRAM: INPUT CONTOUR EQ GAIN DSP SHAPE LOW LOW HIGH HIGH MID MID LEVEL MODE POWER AMP LIMITER MASTER LEVEL HEAD PHONES INSERT CD INPUTS POWER SUPPLY DC CIGARETTE LIGHTER ADAPTER FUSE SMART CHARGER DC CHARGER CHARGING CIRCUIT BATTERY FUSE INDICATOR CHARGING INDICATOR BATTERY 11
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TECHNICAL SPECIFICATIONS OUTPUT POWER RATING 50W RMS @ 10% THD, 4 ohms, 13.6VDC in INPUT IMPEDANCE 220k ohm MAXIMUM SIGNAL ACCEPTED 12V peak to peak GAIN Input 52dB CD Input 23dB Insert 37dB SENSITIVITY Input 25mV RMS Line In Insert 150mV RMS EQS Low 19dB range @ 60Hz Low Mid 25dB range @ 200Hz High Mid 16dB range @ 1kHz High 28dB range @ 10kHz INSERT JACK Tip Line In Ring Line Out Sleeve Ground SPEAKER Crate Custom Design 10”, 4 ohm, 50 watt 1.0” voice coil, 30 oz magnet POWER REQUIREMENTS Inte
