Direct Price: $4,890
The Linear 845 is a 25th anniversary edition integrated tube amplifier released to celebrate the 25th anniversary of the establishment of Opera Audio, which was centered on the extensive experience and years of technological achievements of tube amplifier manufacture and development. It is the flagship of their integrated amplifier range.
The Linear 845 is a Class A single-ended tube integrated amplifier, featuring a specially designed high swing drive stage that maximizes the dynamics of the 845 power tube.
It is particularly worth mentioning that it has two sets of true balanced inputs, and that the balanced signal is converted to single-ended by the Swedish LUNDAHL input transformer and then amplified to accommodate the needs of most of today's audio sources.
The front panel meter is used to easily manually adjust the bias the 845 power tube to ensure optimum operation. The user can also replace the power tube 845 with a 211 using a switch inside the casing.
The amplifiers components are carefully chosen without any compromises, RA resistors, EIZZ step potentiometers and other high-quality components, Pin to pin welding to ensure the lowest loss of sound signals.
Output power: 28W x 2 (RMS 1kHz)
Distortion: <1% (15watt, 1kHz)
Frequency: (-3dB) 5Hz - 47kHz
Input Impedance: 100 KΩ
Output impedance: 4Ω, 8Ω
Signal noise: 90dB
Input interfaces: 2 groups ( RCA ), 2 groups XLR
Vacuum Tube: 1 x 12AT7, 2 x 12BH7, 2 x 845
Dimension: 490 x 450 x 310mm (W x D x H)