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Detailed Specs

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Dual Mono

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Auto bias

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No negative feedback

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Frequency response 20Hz to 30Khz ~ 3dB

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Total Harmonic Distortion ~ 0.22% at 1W into 8 Ohms

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Gain of 24dB

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Noise level > 2mV -RMS into 8 Ohms with input shorted

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1% metal film resisters throughout

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Polypropylene capacitors throughout the signal path

Power

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Custom Toroidal power transformer with global mains

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15 Amp IEC power mains connector

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120 Volts AC mains with 8 Amp 5mm x 20mm slow blow fuse

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Optional factory installed 220V, 230V/240V 50/60Hz with 4-amp slow blow fuse

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Power consumption at rated output 517 Watts

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Front panel on/off switch with green LED indicator for high voltage and amber LED for

low voltage

Active Components

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Matched quad set of four (4) KT150’s vacuum tubes

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Four (4) Gold pin ECC82 (12AU7) vacuum tubes

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High quality gold plated ceramic sockets

Other Features

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Each unit is made by hand

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50-hour factory burn in on all circuits and vacuum tubes

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Dimensions 17" W X 20" D X 10" H

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Weight 64 lbs. (29Kg)

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Shipping box = 27” x 27” x 13” (68.5 cm x 68.5 cm x 33 cm)

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Shipping weight: 80 pounds (36 kg)

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16 and 14 gauge Zinc plated steel enclosure

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Two year limited warranty

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Six months warranty on Vacuum Tubes

Содержание Bia 200 Select

Страница 1: ...plifier Owner s Manual Please read carefully before installing and operating this equipment Zesto Audio 3138 Calle Estepa Thousand Oaks California 91360 805 807 1840 www zestoaudio com george zestoaudio com Made in the USA Using US and Imported Parts ...

Страница 2: ... s a good thing Each unit is built by hand with precision and pride to produce the most enjoyable listening experience for you I am proud to put my name on it and honored to share this with you Wishing you many happy years of listening Sincerely George Counnas President of Zesto Audio FYI Zesto is Greek for hot Bia pronounced by ah is the Titan Goddess of force and power in Greek mythology The wor...

Страница 3: ...10 Power 11 Tubes 11 13 Bias Select Switch 14 15 How to use Grounding Turn on 15 16 Safety Tips fuses 17 Trouble shooting 18 Warranty Information 19 What s in the box Bia 200 Select Stereo Power Amp 4 KT150 Vacuum Tubes 4 ECC82 12AU7 Vacuum Tubes White glove for handling tubes IEC power cable 6 What s not Included KT88 KT120 or KT170 vacuum tubes Interconnect or speaker cables ...

Страница 4: ... on a wall or ceiling 5 WATER AND MOISTURE Do not use the unit near water for example near a swimming pool bathtub wash bowl kitchen sink or laundry tub or in a damp environment like a basement or outside in the rain 6 OBJECT AND LIQUID ENTRY Do not push objects of any kind into the unit through openings as they could touch dangerous voltage points and short out parts possibly resulting in a fire ...

Страница 5: ...ht or power circuits When installing an outside antenna system take extreme care to avoid touching the power lines or circuits contact with them could be fatal OVERLOADING Do not overload wall outlets extension cords or integral convenience receptacles as this increases the risk of fire or electric shock 15 REPLACEMENT PARTS When replacement parts are required be sure the service technician has us...

Страница 6: ...opyright holder 19 FCC INFORMATION FOR USER CAUTION Any changes or modifications not expressly approved by Zesto Audio could void the user s authority to operate the equipment These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates and can radiate radio frequency energy and if not installed and used in accordanc...

Страница 7: ...ory installed 220V 230V 240V 50 60Hz mains 4 Amp slow blow The fuse is located in the drawer compartment in the IEC mains connector Inputs left and right RCA Single Ended High quality recessed gold pin connectors Inputs left and right XLR True floating ground differential balanced transformer inputs Left and right Ground on off switch Connects or disconnects the ground pin 1 to the Balanced inputs...

Страница 8: ...annel KT120 60 Watts per channel KT150 60 Watts per channel KT170 60 Watts per channel Middle switch position KT120 85 Watts per channel KT150 85 Watts per channel KT170 85 Watts per channel Right switch position KT150 100 Watts per channel KT170 100 Watts per channel Inputs Transformer floating ground differential balanced XLR inputs Left and right balanced inputs pin 2 hot impedance 10K Ohms RCA...

Страница 9: ... 220V 230V 240V 50 60Hz with 4 amp slow blow fuse Power consumption at rated output 517 Watts Front panel on off switch with green LED indicator for high voltage and amber LED for low voltage Active Components Matched quad set of four 4 KT150 s vacuum tubes Four 4 Gold pin ECC82 12AU7 vacuum tubes High quality gold plated ceramic sockets Other Features Each unit is made by hand 50 hour factory bur...

Страница 10: ...onic reasons as well as it will allow you to use the ground lift switches if you encounter any ground loop problems Speaker Using speaker cables connect the speakers to the common black binding post and either the 4 8 or 16 Ohm output red binding posts Tip Take advantage of the multiple taps as your system may respond better to the 4 or 8 Ohm For example some systems find there is more base with t...

Страница 11: ...dently flip the switches for the least amount of noise Tip What Is Your Best Audio Accessory Hire an electrician to install a 20 Amp dedicated line for your audio system Do not plug in any lighting on your audio circuit as lighting can be a notorious source of hum Tubes Installing the tubes This unit is compatible with KT88 KT120 KT150 and KT170 output tubes and only 12AU7 ECC82 input tubes Output...

Страница 12: ...d Lion etc All four output tubes must be of the same model type For example all four are KT88 s model or four KT120 s or four KT150 s or four KT170 s Tip The logo on the metal collar and the alignment key on the tube faces forward Caution Do not ROCK the tube install straight up and down holding the metal collar What if you break the Key on an output tube If you look at the bottom of the tube ther...

Страница 13: ...erted in the pin 6 socket to avoid any accidents The good news is your power amp can be repaired at the factory or authorized service technician The bad news is any repairs caused by tubes installed incorrectly are not covered under warranty Changing Tubes Turn the power OFF then wait for both the amber and green LEDs to go OFF For the best performance this amp needs to warm up for 30 minutes If y...

Страница 14: ...the amplifier Maximum output for a KT120 is in the middle position but can also be used in the lower powered left position Caution The Right position will exceed its maximum power rating and will damage the tube known as Red Plating and possibly damage the amplifier The Maximum output for a KT150 KT170 is the Right position but can also be used in the lower powered Left Middle positions Enjoy Only...

Страница 15: ...ice is yours Just remember that you can always go down in output power below the maximum but cannot go up in power beyond a tube s capability How to use Safety Tip Just in case the on off push button switch is already in the on position plug your power cable into the mains last after you install the tubes If the unit turns on when you plug in the cable wait for one minute turn the amp off by pushi...

Страница 16: ...ned ON then OFF then ON again quickly This could blow a fuse Once the unit is ON it is safe to wait a minute 60 seconds or until both LED lights on the front panel have been on for a few seconds before switching OFF then another 60 seconds or until both LED lights on the front panel have been off for a few seconds before you can turn it back on If you blow a fuse replace with the same slow blow fu...

Страница 17: ...ikely cause is an output tube If you replace the tube and the fuse blows again contact your dealer Important Any use of aftermarket performance fuses on the IEC mains will VOID the manufacturer s warranty Speaker fuses The fuses directly under the binding post are designed to blow to protect the amplifier in case there is a short in the speaker or speaker cable Speaker fuses are not the mains fuse...

Страница 18: ...is usually found when a digital source such as network router or Satellite TV box is placed too close to the amp Just move the component until the sound goes away Tip It s a good idea to put all your lighting and digital sources on their own power strip Random clicking usually is caused by a weak output tube Switch tubes in pairs V1 V2 with V3 V4 If the noise changes to the other channel it s one ...

Страница 19: ...ll VOID the warranty Any damage caused by tube rolling is not covered under the warranty Any damage caused by inserting tubes incorrectly is not covered under the warranty Broken alignment keys are not covered under the warranty To return the product it must be packed in its original packaging and returned to Zesto Audio or its authorized representative via insured freight at the owner s expense R...

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