Tube Works MosValve 962 User Manual

MosValve 962
Operation Notes
• This amplifier was designed primarily for musical instrument amplification. It is an addition
to your audio rig which will add warmth and definition to your sound.
• Use MosValve with any preamp capable of producing 450 MV into a 50K load (Virtually any
preamp in existence.)
• Use with speakers or cabinets capable of at least 80 watts RMS continuous power. Re-
member that MosValve can typically produce in excess of 100 Watts/channel under typical
conditions common on stage today. At least 100 Watt speakers or cabinets are therefore
highly recommended if you intend to use the amp at high power output. MANUFACTURER
IS NOT RESPONSEBLE FOR ANY SPEAKER FAILURE WHILE USING THIS EQUIP-
MENT.
• This is a stereo power amp. Mono operation is switchable (both channels. input bridged)
with the use of single input plugged into Channel A. Stereo operation is automatic when an
additional input is plugged into Channel B.
• It is often advisable to use only one channel for mono (for example, if you have only one
speaker cabinet), as the MosValve can produce over 100 Watts with only one channel
driven. Use Channel A and set Channel B controls to "O." NOTE: It will not damage Chan-
nel B to have no speaker plugged into it while using only Channel A.
• NEVER attempt to power bridge the two speaker output channels together. NEVER parallel
or series them into one speaker or cabinet. If power from both channels is used, ALWAYS
use at least two separate speakers (one per channel) or separate speaker cabinets per
channel. ALL WARRANTIES WILL IMMEDIATELY BECOME VOID IF ANY ATTEMPT AT
POWER BRIDGING, OR PARALLEL / SERIESING OUTPUTS ARE MADE!!
• A certain amount of heat during operation is normal. The MosValve amplifier is biased in a
manner in which even when idling there is some heat present. It is best to keep the ampli-
fier towards the bottom of the rack (coolest air) and avoid obstructions to the vents in the
case.
• Never load the speaker outputs with less than 4 ohm loads. These can be single speaker
cabinets per output or a combination of two cabinets per output. Examples of cabinet com-
binations:
Per Channel: One 4 Ohm (or higher) or Two 8 Ohm (or higher)

Tube Works MosValve 962 Specifications

Power

output power	160 Watts RMS at 4 Ohms
max power consumption	120 VAC, 400 Watts (220-240 VAC, 50/60 HZ: 200 Watts)

Sound

s/n ratio	Better than 95 dB at 8 Ohms
hum & noise	Better than -65 dBv at 8 Ohms
sensitivity	450 MV (-5 dBv)

Physical Characteristics

size	3 1/2" H x 19" W x 7" D
overall depth	8 1/2"
weight	13 Lbs.

Summary

Operation Notes

Amplifier Design and Application

Designed for musical instrument amplification, adding warmth and definition.

Preamp Compatibility

Compatible with preamps producing 450 MV into a 50K load.

Speaker and Cabinet Requirements

Use speakers/cabinets of at least 80W RMS; 100W recommended for high output.

Stereo and Mono Operation

Stereo is automatic; mono is switchable via input configuration.

Output Channel Usage

Avoid power bridging or paralleling outputs; use separate speakers per channel.

Heat Management

Normal heat during operation; keep vents unobstructed for proper cooling.

Load Impedance

Never use loads less than 4 ohms per channel; use combinations carefully.

Technical Specifications

Output Power and Impedance

160 Watts RMS at 4 Ohms (80W per channel), 50K Ohm input impedance.

Noise and Sensitivity

S/N Ratio >95 dB at 8 Ohms, Hum & Noise <-65 dBv, Sensitivity 450 MV.

Controls and Features

Presence Control +/- 8 dB, inherent short-circuit protection.

Power Consumption and Cooling

400 Watts max consumption, constant-turbulence internal fan cooling.

Physical Dimensions and Weight

Compact 2-space rackmount size (3.5" H x 19" W x 7" D), 13 Lbs weight.

Warranty Information

Warranty Coverage Details

Three-year warranty on electronic components; 90 days on speakers/reverb/cabinet.

Warranty Activation and Service

Requires owner registration card; contact for RMA number for returns.

Warranty Exclusions

Excludes damage from misuse, modification, or abuse; shipping costs are owner's responsibility.

Safety and Liability Warning

Operational Liability Release

Use implies release of liability; only personnel familiar with high-power audio should operate.

User Agreement

User agrees to hold manufacturer harmless for any accidents, injuries, or losses.