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Table of Contents
Related Manuals for Audio Valve BALDUR 70
Summary of Contents for Audio Valve BALDUR 70
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- Page 2 This handcrafted product has been manufactured according to your wishes, and will allow you many years of musical joy. AUDIO VALVE guarantees that this amplifier has been produced under the strictest manufacturing guidelines, established through decades of tube amplifier design. Your RKV headphone amplifier has been thoroughly tried and tested in all detail.
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Page 3: Table Of Contents
_triode tube power monoblocs___________ List o f co nte nts Page PART 1 - Overview 1. The BALDUR 70 - silver and black 2. Introduction to AudioValve 3. Background to the BALDUR 70 4. The 6AS7G Valve and ABR circuit 5. -
Page 4: Part 1 - Overview
_________________________triode tube power monoblocs___________ _________________________triode tube power monoblocs___________ Congratulations on your decision to become the owner of the AudioValve BALDUR 70 class-A triode power amplifier. This manual has been prepared to help you understand the operation of your amplifier and to provide some information about its design and the variety of ways in which it may be used. -
Page 5: Background To The Baldur
The BALDUR 70 uses half the complement of 6AS7G valves of the 200 plus which in turn halves power output to 75 watts per channel - still more than enough power to satisfy the... -
Page 6: The Pcb
True 21st century valve-technology! The PCB All electronic components of the BALDUR 70 are mounted on one double sided mil-spec printed circuit board created from a pure copper covered panel using CAD/CAM software to produce a circuit board completely free from solder bridges or point-to-point wiring. All... -
Page 7: Part 2 - Instruction Manual
The power output valves are packed individually inside the crate. Remove all four of these and place them somewhere safe! To remove the BALDUR 70 from its crate first undo the plastic wrapping. Each person should then grab the outer rim of the Perspex top and lift the amplifier until it can be rested on the edge of the crate. - Page 8 BALDUR 70 ______________________ _triode tube power monoblocs___________ BALDUR 70 ______________________ _triode tube power monoblocs___________ Next remove the protective grille and Perspex top plate assembly from the top of the amp so you can fit the power valves. This cover is fixed to the Perspex top plate by screws.
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Page 9: Connection
BALDUR 70 BALDUR 70 ______________________ ______________________ _triode tube power monoblocs___________ _triode tube power monoblocs___________ CONNECTION The rear of the amplifier contains one IEC 230v AC mains input socket, one RCA phono line level input socket for un-balanced operation, one XLR line level input socket for balanced operation and two pairs of loudspeaker cable binding posts, one pair each clearly marked for the use of either 4 ohm or 8 ohm loudspeakers. -
Page 10: To/From Pre-Amp (Or Other Source)
RCA phono or XLR inputs as long as that source has some means controlling its output level (volume). Always reduce the volume of such a source to minimum b e f o r e switching the BALDUR 70 to OPERATE mode (see below). -
Page 11: Operation
STAND-BY is selected with the switch in the down position and the LED immediately beside the switch is not illuminated. The BALDUR 70 is more or less indestructible, even if you short-circuit the output, or inadvertently, leave it running without load. This resilience applies to all AudioValve amplifiers. -
Page 12: First Start-Up
For this reason, you should turn on all other equipment in your system before switching the BALDUR 70 into OPERATE mode. The BALDUR 70 does not cause this problem itself. -
Page 13: Automatic Bias Regulator - Function & Interpretation
(number 3 in the photo below). In total there will be six LEDs surrounding each valve as there are two triode circuits per valve. If a power valve in the BALDUR 70 falls in performance to the point where it needs changed,... -
Page 14: Technical Data
BALDUR 70 ______________________ _triode tube power monoblocs___________ BALDUR 70 ______________________ _triode tube power monoblocs___________ TECHNICAL DATA Power supply: 100-245 Volt Power consumption /amp: 250 Watt 4 x 6AS7G, 1 x ECC83, 1 x ECC82, 2 x 6N6P Push-Pull – Valves:... -
Page 15: Warranty
____ WARRANTY AUDIO VALVE warrants its products for a three-year period on all electronics and a 90- day period on the valves from the purchase date. This warranty is restricted to the original purchaser. In the event of a failure of your amplifier, AudioValve will repair or readjust this unit or, should the occasion arise, will replace it provided that all warranty conditions are met. -
Page 16: Declaration Of Conformity
BALDUR 70 ______________________ _triode tube power monoblocs___________ BALDUR 70 ______________________ _triode tube power monoblocs___________ CE – Confirmity Declaration Of Conformity Manufacturer: AudioValve, Germany, 34123 KASSEL, Umbachsweg 70, info@audiovalve.info Product Name: CONDUCTOups, das ist heftih Product Type: Audio Amplifier Complies with Standards: LVD: 92/31/EEC, 93/68/EEC, &... - Page 17 BALDUR 70 _____________________ __triode tube power monoblocs___________ BALDUR 70 _____________________ __triode tube power monoblocs___________ :: AUDIOVALVE – ORIGINAL CERTIFICATE of technical and sound testing :: CLIENT: Modell: RKV - MARK II Datum: Ser.-Nr. Mechanische Baugruppen Gehäuseaufbau / Front-Teile fest ?! c Prüfer:...