« Back
Technics Stereo Power Amplifier SE-R1

Sets a new high performance standard for digital amplifiers by employing state-of-the-art components and innovative technologies.


JENO Engine (Jitter Elimination and Noise-shaping Optimization)

Jitter is a major cause of distortion in digital systems, and is caused by mis-timing in the master clocks used in digital-to-analog conversion. To eliminate the degradation of sound caused by jitter, Technics has developed an original jitter reduction circuit, comprising a clock generator in the noise-shaping system to reduce jitter in the low-frequency range and a high-precision sample rate converter for suppressing jitter in the high-frequency range. Thus it reduces jitter in an ideal way over the entire frequency range.
This works with a newly-developed and original high-precision PWM (Pulse Width Modulation) conversion circuit, optimizing the noise-shaping speed, the degree and requantization number, and the PWM gradation, in order to convert high-resolution signals to PWM without causing any damage to the dynamic range. These new technologies enable new Technics digital amplifier designs to reproduce the natural and delicate nuances of music.

GaN-FET Driver (High-speed and Low-impedance Power Devices)

In the speaker-driving section of the amplifier, Technics has employed a high-speed GaN (gallium nitride) FET driver device with super-low resistance. This enables the construction of a high-power amp using a single push-pull configuration, allowing the length of the large current carrying signal path to be shortened, and resulting in outstanding linearity regardless of the sound level.

LAPC (Load Adaptive Phase Calibration)

The impedance of a speaker is not constant: it varies according to frequency, thus altering the loading on an amplifier and therefore potentially the sound. Technics is able to measure an amplifier's frequency amplitude-phase characteristics with speakers connected, and has developed a speaker impedance adaptive optimization algorithm using digital signal processing to achieve ideal impulse response. Correction processing based on the new algorithm achieves a flat frequency response for both amplitude and phase, not possible in conventional amps, and delivering a sound with rich spatial expression.


Accurate Digital Technology
JENO Engine
(Jitter Elimination and Noise-shaping Optimization)
GaN-FET Driver
LAPC (Load Adaptive Phase Calibration)
Technics Digital Link
High-speed Silent Linear Power Supply
Battery Driven Clock Generator
Dual Mono Construction
High Rigidity Metal Double Chassis

Technics Definitive Design
Aluminium plain miter joint
White LED illuminated large level meter
Symmetric structure

Output Power
150 W + 150 W (1 kHz, T.H.D. 0.5%, 8 Ω, 20 kHz LPF)
300 W + 300 W (1 kHz, T.H.D. 0.5%, 4 Ω, 20 kHz LPF)

Input Sensitivity / Input Impedance
UNBALANCED 1.2 V / 47 kΩ, BALANCED 1.2 V / 47 kΩ

Frequency Response
1 Hz - 90 kHz (-3 dB, 8 Ω)

0.05% (1 kHz, 75 W, 8 Ω, 20 kHz LPF)

Load Impedance
A or B, Bi-wiring: 4-16 Ω, A + B: 8-16 Ω

Analog Input Terminal

Digital Input Terminal
Technics Digital Link x 1

Power Supply
AC120 V, 60 Hz

Power consumption
250 W

Dimensions (W x H x D)
480 x 241 x 567 mm
18-7/8 x 9-15/32 x 22-11/32 inch

Approx. 54 kg
Approx.119 lbs

AC cords, Owner's manual