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Always make sure the amp's vents are open, allowing heat to escape and air to flow 
freely.

Keep the amp away from moisture, and never put any beverages on top of the amplifier,
no matter how convenient it may seem!

Only change fuses with the amp unplugged from the wall!

There are potentially lethal voltages present inside the amplifier. Do not open the 

amplifier chassis unless authorized and are a qualified technician.

Limited Lifetime Warranty

Science Amplifiers are warranted to be free from defects in workmanship for the lifetime of 
the original owner. Electronic components such as capacitors, resistors, transformers, jacks, 

and potentiometers are warranted for 5 years (not including tubes, see below). Any part 
determined defective by Science Amplification within the 5 year period shall be repaired or 

replaced by Science Amplification without charge for parts and labor provided the unit is 
returned and transportation costs prepaid. Science Amplification will pay return shipping 

costs to the original owner. Any unauthorized repair, modification, or tampering voids this 
warranty.

The warranty excludes:

Normal wear and tear: worn out tubes, jacks, cosmetic damage, etc.

Misuse and abuse: operating the amp without a speaker connected (although the amp 

has some built-in protection against this), operating the amp into the wrong speaker 
load, improper tube installation, using the wrong value fuses, maladjustment of bias 

controls, etc. 

Accidental damage: Dropping the amp, spilling liquid inside, etc.

Acts of "God”: Natural disasters and other non-preventable/foreseeable events that 
damage the amplifier.

Tubes, unless within manufacture's warranty period of 90 days (replacements offered 
at manufacturer's discretion).

Any damage caused by authorized or unauthorized repair or modification that is not 
performed by Science Amplification.

10

Содержание Sister

Страница 1: ...1...

Страница 2: ...t tone This control is highly interactive with the Gain Bass and Resonance controls and can produce a huge array of tonal variations and break up characteristics Experimentation is key Normal Gain Adj...

Страница 3: ...p to idle in Standby mode for about 30 seconds before powering off While it is perfectly okay to turn the amp off immediately idling in standby before powering off lets the filter capacitors inside th...

Страница 4: ...loop The effects loop is located after the preamp section of the amp where most of the overdrive is generated This allows time based effects to be operated cleanly For example plugging a delay into t...

Страница 5: ...lug in probe to monitor V1 See Tube Chart on pg 12 output tube bias voltage V2 red probe jack Plug in probe to monitor V2 See Tube Chart on pg 12 output tube bias voltage V3 red probe jack Plug in pro...

Страница 6: ...e bias voltage for V1 and V2 while the right control adjusts the bias voltage for V3 and V4 While the output tubes can only be adjusted in pairs a test jack is provided for each individual tube to pro...

Страница 7: ...mp is played Sometimes they die gently sometimes abruptly causing a fuse to blow which in turn protects the amplifier from further damage Output tubes may also become microphonic like preamp tubes It...

Страница 8: ...hed quad from a reputable dealer However because of the dual bias system it is possible to replace only one pair of output tubes with a matched pair then balancing the bias level with the old pair Tip...

Страница 9: ...in place for safety and to protect the most expensive parts of the amplifier Fuses can blow for various reasons however the most common is a output tube failure To check if a fuse is blown push and t...

Страница 10: ...d by Science Amplification without charge for parts and labor provided the unit is returned and transportation costs prepaid Science Amplification will pay return shipping costs to the original owner...

Страница 11: ...also available please inquire for shop rates Don t hesitate to contact us Care and Maintenance If plexiglass panels need cleaning use only a soft clean and dry 100 cotton cloth to wipe off smudges wit...

Страница 12: ...Tube Chart Birds eye view of the Sister s tube layout Only replace tubes with specified types listed below 12...

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