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Manual
User Manual
for the
RKV - Mark II
tube headphone amplifier
We congratulate you with the purchase of this superb AUDIO VALVE HiFi component.
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.
I personally guarantee the quality of this product
H. Becker
Manager Production & Development
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Summary of Contents for Audio Valve RKV - Mark II
- Page 1 RKV - Mark II tube headphone amplifier We congratulate you with the purchase of this superb AUDIO VALVE HiFi component. This handcrafted product has been manufactured according to your wishes, and will allow you many years of musical joy.
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Page 2: Table Of Contents
Of course an ALPS potentiometer is used to control volume. Like all other Audio Valve amplifiers the RKV is build inside a hard-coated case of laser cut steel with gold-plated terminals. A few important notes: The most successful Audio Valve tube amplifier is the RKV, that has been launched in 1984. -
Page 3: Manufacturers Information
Always check powercords and plugs for damage before use. Disconnect the powercord before any service to the amplifier. In the unlikely event of a failure of the device repairs may be performed by AUDIO VALVE authorized technicians only. Use ORIGINAL spare parts only! -
Page 4: Intended Use / Application
4. Intended use / Application AUDIO VALVE Hi-Fi Amplifiers are intended for use for the situations listed below only: To play and transfer music of any make and fashion when this occurs in private dwellings or studios. All devices must be operated under moderate climatological circumstances, comparable to those under which human beings usually live. -
Page 5: Operating Instructions
6. Operating instructions The frontside of the RKV has a number of controls, whose functions need some explanation. At the left you find two 6.3 mm headphone jacks. Internally these jacks are connected in parallel. Both can be used to connect headphones with an load impedance of 100 - 2000 Ohm. Please do not connect devices with a lower impedance, the output of the amplifier is "shortened "... -
Page 6: Technical Data
The black jack at the upper left of the backside is the IEC power inlet. Inside the power inlet a fuse can be found as a protection against overload. For the 117 V version the value of the fuse should be 1 Ampere Slow. For the 235 V version the fuse is 0,63 Ampere Slow. - Page 7 A softstart prevents high initial currents through the cold, low impedance, heating element. This prevents the element to break at its most narrow spot. Of special interest with respect to headphone protection is the suppression of all amplifier activity at the warming up phase of the amplifier and at power-down.
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Page 8: Use Of The Impedancer
8. Use of the IMPEDANZER In case headphones with impedances below 100 Ohm are to be connected, it is recommended to use the so-called Impedanzer for a better match between amplifier and load impedance. This device allows to connect headphones with impedances between 8 – 64 Ohm. Also high efficiency loudspeakers can be connected through the two pairs of connectors at both sides of the front. -
Page 9: Warranty
In the event of a failure of your amplifier , AUDIO VALVE will repair or readjust this unit or , should the occasion arise , will replace it provided that all conditions stipulated in this warranty are met.
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