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Congratulations on your purchase of the 14-tube 26Wpc Raven
Audio Spirit 300B Reference Stereo Amplifier. Locate your
amplifier between the speakers if possible and preferably not on
carpet without using amp stands. Best practice is to use longer
interconnects to the amp and shorter speaker cables.
Insert tubes with care according to the diagram and check tube
orientation with their sockets. Wipe off the tubes before first use.
All Raven Audio amplifiers are auto-biasing so you never have to
be concerned when inserting compatible power tubes, but
always use matching pairs.
VACUUM TUBE ASSEMBLY DIAGRAM
300B
300B
12SN7
12SN7
12SN7
12J5
12J5
300B
300B
12SN7
12SN7
12J5
12J5
12SN7
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PRODUCT DETAIL
Specifications
Output: 26Wpc
Frequency response: 20Hz - 20kHz
Inputs: 1/pr balanced XLR, 1/pr single-ended RCA
Speaker terminals: 4 and 8 ohm
Recommended speaker sensitivity: 96dB or higher
Dimensions: W 19.4" x D 11.5" x H 10.5"
Weight: 70lbs
Tube Complement
4 x 12J5 - (inside pair) first stage, (outside pair) phase inverter
2 x 12SN7/12SX7 – Driver tubes
2 x 12SN7 – Cathode followers
2 x 12SN7 – Auto-bias
4 x 300B – Power tubes
Auto-biased power tubes, interstage transformers
IMPORTANT: USING YOUR VACUUM TUBE AMPLIFIER
Do not unplug an interconnect while the preamplifier is on
•
Do not unplug a speaker cable while the amplifier is on
•
Do not allow the ends of unconnected speaker cables to touch
•
Do not plug your amplifier into an ungrounded power socket
•
Turn on the preamp and source components first
•
Allow them to warm up before turning on amplifier
•
Turn down the volume on the preamp and turn the amp on last
•
Turn down the volume on the preamp and turn the amp off first
•
Always use the correct tube types available from Raven
•
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