TWO/FIFTY/TWO STEREO POWER AMPLIFIER OWNERS MANUAL
Contents
1. AMPLIFICATION TWO FIFTY TWO STEREO POWER AMPLIFIER GEMAH TWO FIFTY7 TVO STEREO POWER LA CHANNEL B CHANNE voLUME presence 70 DEPTH MV PRESENCE DEPTH omy ttn snuk use MAINS VOLUME MODEL G 2502 S OWNERS MANUAL FRONT PANEL CHANNEL A CHANNEL B PRESENCE DEPTH VOLUME LEVE VOLUME LEVEL VORIM PRESENCE DEPTH Qe LEFT TO RIGHT VOLUME Level control for Channel A LEVEL Push button switch for controlling input signal level Out 10dB In OdB PRESENCE Increases high frequency gain VOICING Push button switch Extends low mid and high frequencies DEPTH Variable damping for extended low frequency and looser speaker response VOLUME Level control for Channel B LEVEL Push button switch for controlling input signal level Out 10dB In OdB PRESENCE Increases high frequency gain VOICING Push button switch Extends low mid and high frequencies qe Je o wr os x Im 0 DEPTH Variable damping for extended low frequency and looser speaker response CLASS A STANDS CLASS sk Oy ee 1 11 CLASS A AB Up Class AB power tube operation 62 watts channel Down Class Cathode Bias power tube operation 50 watts channel 12 STANDBY Turns on high voltage to output section In standby the amplifier output is disabled while power is s2. an implied warranty lasts and or do not allow the exclusion or limitation of consequential damages so the above limitations on implied warranty and consequential damages may not apply to you This warranty gives you specific legal rights You may have other rights that vary from state to state STEVEN FRYETTE DESIGN INC 1201 S FLOWER STREET BURBANK CA 91502 TEL 818 846 4000 FAX 818 846 4040 www sfdamp com e Page6
3. eft signal to Channel A input and right signal to Channel B input NOTE Sending a single source signal MONO into the Channel B input without inputting any signal to the Channel A input will effectively defeat the operation of Channel A amplifier no sound from Channel A e TUBE FUNCTION AND LOCATION CHART Each 12AX7 12AU7 has two sections functions Section is shown first Section B is second Factory recommended tubes are listed under each location where two types are listed the second listing is a factory recommended substitution Numbering sequence is left to right looking at FRONT of amp starting with the row closest to front panel of amp Use only 12AX7 or 12AU7 tubes as specified These cannot be switched between socket locations or substituted for other types V1 Input Stage post volume control 12AX7 China Phase Inverter 12AX7WA Russia V2 Voltage Amp Driver Stage 12AU7 China Voltage Amp Driver Stage V3 Input Stage post volume control 12AX7 China Phase Inverter 12AX7WA Russia V4 Voltage Amp Driver Stage 12AU7 China Voltage Amp Driver Stage V5 V8 Power Tubes EL34B Mullard EL34B Sino China EL34 Svetlana SED e Page4 F RYET TE AMPLIFICATIO N Certificate of Compliance Restriction of the use of Hazardous Substances RoHS We certify that all of our products exceptions see listed below are compliant with the European Union Directive 2002 95 EC for the Restriction of the
4. ified on the rear panel of your amplifier AN Use only the factory supplied cord set or a UL approved equivalent type 2 MAINS FUSE Protects the amplifier from electrical faults Replace only with type and rating specified on the rear panel of your amplifier 3 DC FUSE Protects the power supply and output transformer from electrical faults Replace only with type and rating specified on the rear panel of your amplifier IN Warning Replace only with same fuse type and rating 4 SPEAKER OUTPUTS Upper set of two outputs for Channel A amplifier NOTE To prevent damage to power tubes and or output transformer ALWAYS USE USE FIRST output whether you are running one or two sets of speakers for either channel 5 IMPEDANCE SELECTOR Upper selector for Channel A amplifier set for 4 8 or 16 Ohm loads 6 INPUT Upper input jack for MONO signal input Example signal coming from a pre amp is sent to A and B Channels or for Channel A input from a stereo source 7 SPEAKER OUTPUTS Lower set of two outputs for Channel B amplifier NOTE To prevent damage to power tubes and or output transformer ALWAYS USE USE FIRST output whether you are running one or two sets of speakers for either channel 8 IMPEDANCE SELECTOR Lower selector for Channel B amplifier set for 4 8 or 16 Ohm loads 9 INPUT Lower input jack for Channel B for stereo source operation example left and right outputs coming from a stereo effect would input l
5. on manual or products that have been altered or have missing or defaced serial numbers 2 This warranty shall not apply to the appearance of accessory items including but not limited to cabinets cabinet parts or knobs 3 This warranty does not apply to uncrating setup installation or the removal and reinstallation of products for repair 4 This warranty shall not apply to repair or replacements necessitated by any cause beyond the control of SFD including but not limited to any malfunction defects or failure caused by or resulting from unauthorized service or parts damaged or broken tubes incorrect line voltage improper maintenance modification or repair by the user abuse misuse neglect accident fire flood or other Acts of God 5 Responsibility for the repair of any SFD product sold outside of U S boundaries is borne by the SFD representative in that particular country or territory Also the warranty term and conditions may be different from those stated above Please contact the SFD distributor or dealer in your country for more information The foregoing is in lieu of all other expressed warranties and SFD does not authorize any party to assume for it any other obligation or liability In no event shall SFD be liable for special or consequential damages arising from the use of this product or for any delay in the performance of this warranty due to causes beyond our control Some states do not allow limitations on how long
6. t by Electromagnetic Engineering Services Inc in accordance with European Standards EN 50081 1 EN 50082 1 and EN 60065 for low voltage as laid down in Article 10 of the EMC Directive Steven Fryette Design Inc 1201 South Flower Street Burbank CA 91502 USA e 5 RYEI IE AMPLIFICATION LIMITED WARRANTY Subject to the obligations and exclusions found below this product is warranted by Steven Fryette Design Inc herein SFD against manufacturing defects in materials and workmanship for the period of One 5 Years from the date of purchase with the exception of the tubes fuses and speakers where applicable which carry a 90 day warranty The warranty period commences on the date of purchase by the original user Performance under this warranty must be obtained at one of the following an SFD Authorized Service Station by returning the unit to the SFD factory with prior written authorization or in countries outside of the United States by a representative SFD distributor Obligations 1 This warranty will be honored only on the presentation of the original proof of purchase 2 Transportation of the product to and from an authorized SFD service outlet is the responsibility of the user Units sent directly to the SFD factory for warranty repairs must be authorized by SFD and shipped prepaid Exclusions l This warranty shall not cover adjustment of consumer operated controls as explained in the appropriate instructi
7. upplied to the tube filaments only Use STANDBY instead of switching the power off during short breaks to extend tube life and avoid the warm up delay upon returning to play A FUSE B Wea Wea CAUTION TO AT BRA Dd ARCE EF TP oer MAINS Pia B a 13 FUSE A 1 2 amp fast blow fuse for Channel A 14 FUSE B 1 2 amp fast blow fuse for Channel B 15 MAINS Switches main AC power on or off Illuminates when the unit is ON You can extend the life of the amplifier tubes by keeping the STANDBY V switch down for the first 60 seconds that the power is ON e Page2 REAR PANEL WARNING TO PREVENT RISK OF ELECTRIC CAUTION TO REDUCE THE RISK OF FIRE TN X IMPEDANCE INPUTS SHOCK DO NOT REMOVE COVER REFER OR ELECTRIC SHOCK DO NOT EXPOSE SERVICING TO QUALIFIED SERVICE PRESONNE THIS EQUIPMENT TO RAIN OR MOISTURE Y AVIS RISQUES DE CHOC ELECTRIQUE NE PAS OUVRIR UTILTSER UN FUSIBLE ECHANGE DE MEME TYPE N lt 8 A V CHANNEL A 2 N 50 60 HZ HANDBUILT BY ROCKERS IN THE U S A A MONO MAINS 350 STEVEN FRYETTE DESIGN INC BURBANK CALIFORNIA 91502 h P AM N EN j BU 69 i am CHANNEL B MODEL G 2502 S x f SERIAL JBO91661 I LEFT TO RIGHT 1 ACMAINS INPUT Connect to a grounded outlet in accordance with the voltage and frequency spec
8. use of certain Hazardous Substances in Electrical and Electronic Equipment RoHS No Lead Pb Cadmium Cd Mercury Hg Hexavalent Chromium Cr 6 PBB or PBDE is intentionally added to these devices Any trace impurities of these substances contained in the parts are below the RoHS specified threshold levels All information provided in this Certificate of Compliance is accurate to the best of our knowledge as of the date this Certification was issued Certificate of Compliance Registration Evaluation Authorization and Restriction of chemicals REACh We declare that all of our products are compliant with European Union Directive EC1907 206 for the Registration Evaluation Authorization and Restriction of chemicals REACh and contain none or less than 0 1 of the chemicals listed as hazardous chemicals in the REACh regulation All information provided in this Certificate of Compliance is accurate to the best of our knowledge as of the date this Certification was issued Declaration of Conformity EMC and Low Voltage Directive CE Product Name Two Fifty Two Power Amplifier Model Number G 2502 S This is to certify that the product listed above complies with the following European Union Council Directives and Standards relating to electromagnetic compatibility EMC Directive 89 336 and the low voltage Directive 73 23 EEC This declaration of conformity of the European Communities is the result of an examination carried ou
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