Western Electric 91E - Features and Specifications of the 91 E Amplifier; Items Included in the Box; Overview of Key Amplifier Features

TYPE 91E
INTEGRATED AMPLIFIER
4
IN THE BOX
• 91E Integrated Amplier
• 1x Matched Pair 300B
• 2x ECC81 (pre-installed)
• Remote Control
• Power Cord
• BT Antenna
• Pin Straightener
FEATURES OVERVIEW
Single-Ended (SE) Topology
is product is implemented with single-ended (SE) tube amplier technology. is allows for the
most authentic listening experience possible, compared to push-pull congurations.
Steered Current Source Technology (SCS)
Experience double the traditional output power with advanced, SE circuit design. is new level
of performance is reached by using a fully linear, steered current source controlled exclusively by
the tube’s output voltage (US Patent 10256776). Lush detail in the midrange and masterfully
articulated upper and lower frequencies are revealed. For details see page 2.
Logarithmic Attenuator
A logarithmic attenuator is used to mimic the response of human hearing. e attenuator consists
of only discrete resistors in a ladder conguration that are switched in and out of circuit with relays
to produce a logarithmic attenuation of the output signal.
Interchangeable Output Transformer Block
Common output transformers are large and excessive. e 91E has smaller, interchangeable
transformer block add-ons that allow users to match loudspeaker impedance. e result? Lower
hysteresis, lower distortion, and a lush, black-background soundstage. For instructions on output
transformer block installation and handling, see page 14.
FEATURES &
SPECIFICATIONS
SPANNER TOOL
FOR 30 0B ACCESS
SPANNER TOOL FOR
OUTPUT TRANSFORMER ACCESS
REMOTE CONTROL
PIN STR AIGHTENER
MATCHED PAIR 300B ELECTRON TUBES
• Spanner Tool (for 300B access)
• Spanner Tool (for transformer access)
• White Safety Gloves
• Warranty Registration Card
• End User Guide