Crate BV300H - User Manual

This is the operation guide for the Crate BV300H.
READ IT.
Then get ready for the Ride of your Life!

Summary

Important Safety Instructions

General Safety Warnings

Groups CAUTION, PRECAUCION, and ATTENTION warnings for electrical shock and exposure.

Essential Safety Precautions

Covers instructions on operation near heat, liquids, ventilation, and power cord handling.

Front Panel Controls - Channel 1

Input and Channel Selection

Details the Input Jack and the Channel 1 Select Switch for guitar connection.

Midrange Controls (Select & Level)

Describes selecting the mid frequency and adjusting the midrange output level.

Front Panel Controls - Channel 2

Channel 2 Select Switch

Details the switch to activate Channel 2 and its associated amber LED indicator.

Midrange Controls (Boost Select & Level)

Describes adding a mid boost and adjusting the main midrange output level.

Front Panel Controls - Channel 3

Channel 3 Select Switch

Details the switch to activate Channel 3 and its associated red LED indicator.

Gain and Treble Controls

Explains gain for aggressive rhythm playing and treble level adjustment.

High Frequency Controls (Select & Level)

Describes selecting the high frequency range and adjusting the high-end level.

Level and Bass Controls

Details adjusting the output level and the low-end response for Channel 3.

Front Panel Effects and Power Controls

Effects Loop Switch

Eek! and Ugh! Controls

Standby and Power Switches

Rear Panel Connectivity - Footswitch, Speakers, Slave Out

Footswitch Jack

Connects the BVFS4 footswitch for remote channel and effects loop control.

Speaker Output Jacks

Provides parallel-wired Speakon and 1/4" jacks for connecting speaker cabinets.

Impedance Matching Switch

Slave Out Connections

Rear Panel Connections - Effects Loop, Bias, Power

Effects Loop Send and Return

Effects Loop Series;Parallel Switch

Bias Controls

Fuse and AC Power Inlet

Tube Replacement and Biasing

When to Replace Tubes

Preamplifier Tube Checks

Power Tube Replacement Guidelines

The Importance Of Proper Biasing

The Block Diagram

Channel Signal Paths

Power Amp and Output Stages

Tube Complement and Features

Technical Specifications

Performance Ratings

Details output power, signal-to-noise ratio, and gain specifications.

EQ and Frequency Response

Lists EQ ranges for Bass, Mid, and High frequencies across all channels.

Tube Types and Power Requirements

Crate BV300H Specifications

Output and Signal

output power rating	300 Watts RMS @ 5% THD, 4 ohm load, 120 VAC
signal to noise ratio	75dB Typical
gain channel 1	80dB
gain channel 2	105dB
gain channel 3	105dB

Equalization

low eq channel 1	24dB range @ 50Hz
low eq channel 2	20dB range @ 50Hz
low eq channel 3	18dB range @ 100Hz
mid eq channel 1	+10/-22dB @ EQ Switch
mid eq channel 2	10dB range @ 750Hz
mid eq channel 3	20dB range @ 1.2kHz
high eq channel 1	38dB range @ 5kHz
high eq channel 2	12dB range @ 2kHz
high eq channel 3	25dB range @ EQ Switch

Power

power requirements	120 VAC, 60 Hz, 600VA, 100/115 VAC, 50/60 Hz, 600VA, 230 VAC, 50/60 Hz, 600VA

Physical Specifications

dimensions	30”W x 12-1/2” H x 11”D
weight	80 lbs.