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Details about  Battery Tube Only Headphones Amplifier For Sennheiser HD 580 600 650 Beyer DT880

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Battery Tube Only Headphones Amplifier For Sennheiser HD 580 600 650 Beyer DT880
Battery-Tube-Only-Headphones-Amplifier-For-Sennheiser-HD-580-600-650-Beyer-DT880
Item Ended
Item condition:
Brand New
Ended:
24 Aug, 2013 19:11:40 AEST
Starting bid:
US $47,000.00
Approximately AU $52,996.56(including postage)
0 bids ]
Postage:
FREE Standard Int'l Shipping | See details
Item location:
Athens, Greece, Greece

Description

eBay item number:
330993041075
Seller assumes all responsibility for this listing.

Item specifics

Condition:
Brand New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Type:

Headphone Amplifier

Number of Channels:

2

Brand:

Pleides

Country of Manufacture:

Greece

Model:

Electra

Pleiades Electra, possibly the most transparent amplifier on earth. No other components except 2 tubes for both stereo chanels. For the schematic Only please visit my other items.

An electron tube on its own has a flat frequency response from 0Hz to many MHz. Surrounding components restrict this and limit the magic of music in other ways too. This is possibly the first amplifier on earth using electron tubes and only.

Since the signal passes through an electron tube and nothing else, the amplifier is possibly the closest there is to a wire with power gain!

Gain being fixed it must be connected to a passive preamplifier or a source that has variable output. Volume control may be added if you request.

Item may not look exactly the same, reserving the right to make revision changes. Handling time aproximately 30 days. This amplifier is only suitable for high impedance stereo headphones like the Sennheiser HD-580, Beyer DT880 or equivalent..

 

Specifications:

Bandwidth <<0.000001Hz to >>MHz (DC to RF)

12V extremely low noise battery operation

Power consumption < 7W

Input impedance >>MOhm

No resistors, potentiometers

No capacitors

No transformers, inductors

No solid state, diodes, transistors, FETs, ICs

The signal is amplified by only 2 electron tubes in class A.

Only suitable for headphones with impedance >150, <600 Ohms

 

Caution: Headphones can damage hearing at high levels. Please make shure you attenuate your source signal adequately before sending to this headphone amplifier.

 

 

 

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