Western Electric
pre-owned E91
InquireWestern Electric 91E Integrated Amplifier
with additional 16 Ohm Output Transformer
—
Experience the 91E, a powerful classic from the makers of the original 300B
Double the Performance
Trouble-free, noise-free, and double the power of traditional 300B amps. Made possible by patented circuit design.
A New Classic
We’re proud to continue a legacy of quality, American manufacturing with innovative new features.
Ships with Tubes
The 91E ships with new production 300Bs, the most popular electron tubes in the world. Made in the USA.
| Features | |
|---|---|
| Steered Current Source Technology (SCS) | The 91E uses Western Electric’s patented steered current source technology. The unique 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. |
| 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 circuit to produce a logarithmic attenuation of the output signal. |
| Interchangeable Transformer Block | The standard 8-ohm transformer block can be interchanged with the optional 4-ohm version. This feature is unique to the 91E Integrated Amplifier. Single impedance transformers maintain lower winding capacitance normally vitiated with multiple tap transformers. |
| LCD Display | A bright and easy to read color 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 (6) 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. |
| BT Compatibility | BT compatible audio input is available for wireless convenience. |
| Software & Firmware | Updates via Ethernet Connection and USB. |
| Specifications | |
|---|---|
| Weight | 49lbs / 22.2 kg |
| Dimensions | 18.9 x 15 x 11.1” / 48 x 38 x 28cm |
| Chassis | Machined Aluminum |
| Colors | Nickel, Champagne, 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 |
| Phono MC Input Impedance | 1000 kOhms (adjust via Phono Load plugs) |
| 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 |