8L6 Integrated Tube Amplifier
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The E.A.R. Yoshino 8L6 has been designed to meet a wide variety of needs, from the most demanding of audiophiles to the professional seeking high quality monitoring equipment in the studio field. The circuit design uses push-pull output and driver stages, a high quality in-house-designed output transformer and low negative feedback. Tube life is long (and replacement costs modest) and the circuit operates in pure Class A.
The 8L6 circuit design uses push-pull output and driver stages, a high quality in-house-designed output transformer and low negative feedback. Tube life is long (and replacement costs modest) and the circuit operates in pure Class A. The 8L6 is identical to the 834 with the useful exception described below.
The 8L6 can be used as an integrated amplifier or as separate preamplifier and power amplifier. This is selected with the switch at the rear of the unit marked “Pre/Power Split On”. In integrated amplifier mode the front panel source selector works in the usual way to select any of the six inputs available on the rear. No connection is required between the “Pre Out” sockets and the “Power Amp In” sockets.
In pre-main mode the passive preamplifier section is disconnected internally from the power amplifier section, requiring an external connection between the “Pre Out” sockets and the “Power Amp In” sockets. This facility is provided to allow the user the option of connecting a signal processor such as an equalizer between the pre and power sections.
An additional benefit is that the “Pre Out” sockets remain active when the 8L6 is in integrated mode, so that a second 8L6 (or other amplifier of similar gain) can be used 'slaved' to the main one for bi-amping.
Features
- Parallel push-pull pure class A circuit stereo valve power amplifier with control unit built in
- 6 RCA line inputs
- 1 tape output
- 1 pair of speaker output terminals
- 50 watts per channel power output into 4, 8 or 16 ohm
- Push-pull operation from input to output
- Low overall feedback design
- Self biasing
- Made in England
Specifications
- Vacuum Tube Selection- 6L6, EL34, or KT66
- Power Output- 50 watts/channel (30 Hz - 15 kHz at 1% THD)
- Power Consumption- 200 watts total
- Inter-modulation Distortion- Less than 1% at any level from 10mW to 50 Watts
- Output Damping Factor- 12
- Power Bandwidth- 15Hz- 40 kHz at less than 3% THD
- Input Sensitivity- 200mV
- Signal to Noise Ratio- 85dB
- Input Impedance- 47k Ohms
- Inputs/Outputs- 6 pair RCA inputs, 1 tape output, 1 pair loudspeaker terminals
- Size- Width 16'' (405mm), Depth 16'' (405mm), Height 6'' (150mm)
- Weight- 20kg