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Crate THUNDERBASS BT-350 manual

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Table of contents for the manual

  • Page 1

    for the Owner’ s Manual BT -350 BT -350 Bass Amplifier Bass Amplifier[...]

  • Page 2

    THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND RELIABLE OPERA TION. IN ORDER TO PROLONG THE LIFE OF THE UNIT AND PREVENT ACCIDENT AL DAMAGES OR INJURY , PLEASE FOLLOW THESE PRECAUTIONARY GUIDELINES: CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT OPEN CHASSIS; DO NOT DEFEAT OR REMOVE THE GROUND PIN OF THE POWER CORD; CONN[...]

  • Page 3

    Introduction: The Crate BT-350 ThunderBass amp i s a high-quality bass guitar amplification system that combines extremely high power with very desirable f eatures. Each f eature and control is discussed in detail in the sec- tions entitled “The Front P anel,” “The Rear P anel” and “Using the Biamp C apabilities.” Crate off ers a heavy-[...]

  • Page 4

    I NPUTS: 1. 0dB INPUT: C onnect your bass here using a shielded instrument cable. The output signal of your bass will run full-strength into the amplifier, which is fine f or most basses hav ing passive elec- tronics and/or low-output pickups. If your bass has active on-board electron- ics and/or active pickups, use the -15dB input jack (#2) to avo[...]

  • Page 5

    5 5 11. LIMIT LED: The BT-350 offers a special limiting circuit which helps to keep the output of the amplifier “clean” when played at extreme volume levels. When the Limiter is engaged, the Limit LED will come on as the power amp is being driven to full output. 12. LIMITER: When a power amplifier reaches maximum output levels, it may begin to [...]

  • Page 6

    The Rear Panel: 6 6 27. SPEAKER OUTPUT jacks: Using a 1/4” mono phone plug, connect the out- put of the BT-350 to your speaker cabi- net(s) via these jacks. Be sure to use heavy gauge speaker cable – not instru- ment patch cords – f or these connec- tions. These jacks are wired in parallel: when connecting your speakers, keep the total impeda[...]

  • Page 7

    System Block Diagram: 7 7 BT -350 BT -350 ThunderBass Amplifier[...]

  • Page 8

    Using the Biamp Capabilities: Y our BT-350 can be used along with an additional power amplifier, to “biamp” your system: that is, using two ampli- fier/speaker combinations to share the task of reproducing the full range of your bass. Due to increased efficiencies, the combined output may sound cleaner and more powerful than that of a single-am[...]

  • Page 9

    9 9 Using the Biamp Capabilities (con’ t): Using the BT-350 as the high-frequency power amplifier: In the biamp configuration shown below, the BT-350 serves as the system preamp, biamp crossover, and high-fre- quency power amplifier. A second power amp of 200 to 500 watts may be used to amplify the low frequencies. The crossover frequency (that p[...]

  • Page 10

    Some Suggested Settings: 1 1 0 0 Biamp and Chorus controls optional. Y ou can crank the T ube Drive even more f or distortion; if you do, back off the EQ level. R OCK: This will produce a very smooth sound with a minimum of percussive tones. JAZZ: BT -350 BT -350 ThunderBass Amplifier[...]

  • Page 11

    Some Suggested Settings: 1 1 1 1 Increasing the EQ Level produces more clean volume. Set the Master Level to taste. COUNTRY: Chorus is a great eff ect with this setting. FUNK “POPPING”: BT -350 BT -350 ThunderBass Amplifier[...]

  • Page 12

    T echnical Specifications: CRA TE/SLM ELECTRONICS, A DIVISION OF ST . LOUIS MUSIC, 1400 FERGUSON A VENUE, ST . LOUIS, MO 63133 47-599-02 • 02-96 CRA TE continually develops new products, as well as improves existing ones. For this reason, specifications and information in this manual are subject to change without notice. Output P ower Rating 350 [...]