ESOTERIC S-05 Class A Stereo Power Amplifier

Simple and straightforward circuit design concept following the Grandioso M1X

In addition to the precision of Class A, we pursue the dynamic sound quality unique to ESOTERIC

In order to thoroughly separate the L/R channels, all stages from the power smoothing circuit are configured as dual mono

Original current transmission "ES-LINK Analog" input that transmits the energy of music without loss

Large-capacity bipolar transistor 3-parallel push-pull configuration pursuing instantaneous response

Large-capacity 940VA EI core power transformer that is highly responsive to dynamic changes in current supply

Large-capacity Grandioso-grade custom block capacitors (10,000μF × 4/ch)

Input amplifier with a highly stable balanced configuration that is resistant to common mode noise

Two modes are adopted: BTL drive that emphasizes high output, and bi-amp drive for pure sound from multi-way speakers, and two units can be combined to further improve the system

Trigger connection allows power on/off to be linked with N-05XD

Semi-floating top panel, specially designed isolation foot to reduce mechanical stress

Special wave-shaped heat sink to reduce peak resonance

Output

Rated output 30W + 30W (8Ω, Class A operation)

60W + 60W (4Ω)

120W (BTL mode, 8Ω)

Compatible impedance 4Ω to 16Ω

8Ω to 16Ω (BTL mode)

Analog audio input

ES-LINK Analog terminal 1 system

XLR terminal 1 system

RCA terminal 1 system

General

Power supply AC 100V, 50/60Hz

Power consumption 245W (no signal 210W)

External dimensions (W x H x D) 445 x 191 x 444mm (including protrusions)

Weight 30.7kg

Audio characteristics

Frequency response 5Hz to 100kHz (+0dB, –3dB, 8Ω)

S/N ratio 102dB (IHF-A, XLR)

Distortion rate 0.007% (1kHz, 8Ω, 30W)

Gain 28.5dB