10. January 2022 · Comments Off on Western Electric 91E Integrated Amplifier · Categories: Hifi News · Tags: , , , , , , ,

WESTERN ELECTRIC 91E INTEGRATED 300B VALVE AMPLIFIER

The Western Electric 91E Integrated Amplifier is now available to pre-order.

We brought you the news of the Western Electric 91E Integrated Amplifier featuring their “back in production” 300B valves, three years ago. Now, despite the pandemic, the amplifier is finally available to pre-order.

Western Electric 91E Integrated Amplifier

Western Electric 91E Integrated Amplifier with their 300B valves

WESTERN ELECTRIC 91E INTEGRATED AMPLIFIER

The flagship single ended 300B valve amplifier will be available in three finishes, nickel, black and gold. The amp is also Bluetooth compatible. Initial units of the Western Electric 91E are currently entering the final stages of assembly and quality inspection.

Western Electric 91E Integrated Amplifier

Detail of the gold Western Electric 91E Integrated Amplifier

STEERED CURRENT SOURCE TECHNOLOGY

The 91E uses Western Electric’s patented steered current source technology. The parallel feed topology contributes half of the AC current to the plate (anode) of the 300B by modulating quiescent current. As a result, half of the power dissipation occurs in the tube, allowing for a greater output power of 20 watts per channel.

Western Electric 91E Integrated Amplifier

Back of the Western Electric 91E Integrated Amplifier

STEPPED LOGARITHMIC ATTENUATOR

A stepped logarithmic attenuator is used to mimic the response of human hearing. The attenuator consists of only discrete resistors in a ladder configuration that are switched in and out of the circuit to produce a logarithmic attenuation of the output signal.

Read about the Western Electric 300B valves here

INTERCHANGEABLE TRANSFORMER BLOCK

The standard 8-ohm transformer block can be interchanged with the optional 4-ohm version. Western Electric says that this feature is unique to the 91E Integrated Amplifier. Single impedance transformers maintain lower winding capacitance.

Western Electric 91E Integrated Amplifier

Detail of the Western Electric 91E Integrated Amplifier

WESTERN ELECTRIC 91E INTEGRATED AMPLIFIER LCD DISPLAY

A bright and easy to read colour display shows the selected input, attenuator level, and VU meter. The display also shows settings which can be adjusted by the included remote control. The display is dimmable.

REMOTE CONTROL

The included infrared remote control allows for quick adjustment of amplifier settings such as input levels, balance, and display dimming.

SIX AUDIO INPUTS

Up to six source devices can be connected during amplifier operation.

AUTO-BIAS

Microprocessors automatically bias the 300B tube pair each time the amplifier is powered on. No manual adjustment is necessary.

Western Electric 91E Integrated Amplifier

300B valve

WESTERN ELECTRIC 91E INTEGRATED AMPLIFIER SPECIFICATIONS

Weight          49lbs / 22.2 kg

Dimensions   18.9 x 15 x 11.1” / 48 x 38 x 28cm

Chassis        Machined Aluminium

Colours         Nickel, Gold, Black

Operating Voltage   100V / 115V / 230V / 50-60Hz

Power Consumption (Operation / Standby)       160W / 0.3W

Mains Fuse   2A slow-blow

Electron Tube Complement One Matched Pair Western Electric 300B, 2x ECC81

Phono MM Sensitivity (10W / 4Ω) 0.75mV

Phono MC Sensitivity (10W / 4Ω) 70μV

CD Sensitivity (10W / 4Ω)  0.27V

CD Input Impedance         20 kOhms

Phono MM Input Impedance        47 kOhms | | 100 pF

SNR MM (10W / 4Ω, input 5mV)  83 dB(A)

SNR MC (10W / 4Ω, input 0.5mV)          73 dB(A)

SNR CD (10W / 4Ω, input 0.5V)   101 dB(A)

CD Frequency Response   15 Hz – 32 kHz (-3 dB)

Phono Frequency Response        30 Hz – 20 kHz (RIAA within +/- 0.5 dB)

Output Power / 4 Ω / THD 10%    2 x 20 watts

Output Power / 4 Ω / THD 5%      2 x 16 watts

Output Power / 4 Ω / THD 3%      2 x 14 watts

Output Power / 8 Ω / THD 10%    2 x 20 watts

Output Power / 8 Ω / THD 5%      2 x 16 watts

Output Power / 8 Ω / THD 3%      2 x 14 watts

BT* Standard          v4.2

BT* Codecs  BC, MP3, AAC, Fastream, APTX

BT* Sample Rate (adaptive)         Up to 96kHz / 16-bit

BT* frequency response    20 Hz – 20 kHz

BT* SNR       96dB

*Bluetooth® compatible

Western Electric 91E Integrated Amplifier

Western Electric 91E Integrated Amplifier

WESTERN ELECTRIC 91E INTEGRATED AMPLIFIER PRICE AND AVAILABILITY

As an early bird, you’ll receive a 10% discount so the price is $ 13499.10

Orders will begin shipping in early 2022.

HiFi Pig Says: Western Electric has certainly kept their fans waiting, but it is good to see the new 300B amp is going to land soon.

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