SOULNOTE A-0 ver.2

INTEGRATED AMPLIFIER Silver / Black

TECHNOLOGY

Full discrete non-NFB circuit

An extremely simple configuration, consisting merely of a power amplifier with a selector and volume control, is identical to that of SOULNOTE‘s flagship integrated amplifier A-3.

Single push-pull output stage using TO-220 transistors

The final output stage employs TO-220 transistors with low Cob and high-frequency characteristics in a single push-pull configuration. This is a high-end amplifier prioritizing quality, achievable only by limiting maximum output to 10W.

Four-stage Darlington circuit

Delivering a maximum output of 10W while employing the same four-stage Darlington configuration as A-1 ver.2 and A-2 ver.2. Even at low volumes, it demonstrates drive capability, producing air pressure changes.

Newly Developed Bias Circuit

A newly developed bias circuit is adopted. S/N has been dramatically improved.

Enhanced pre-out function

・For the pre-out output, a powerful High mode is selectable, which outputs the loudspeaker output signal directly. A Low mode is also selectable, where the output is attenuated for easier handling.

・When selecting the pre-amplifier, a mode has been applied that outputs the loudspeaker output signal. A mode that cuts off the loudspeaker output is also selectable.

・The pre-out terminals feature both RCA and XLR connectors. The XLR terminals are configured as: [1] GND [2] HotA [3] Floating GND, enabling the noise-cancelling benefits inherent to balanced connections. Using SOULNOTE non-shielded balanced cables such as RBC-1 allows the pre-amplifier to deliver its maximum potential.

Non-fixed top cover

The top cover is not fixed. This achieves a natural sound field and a sense of openness.

Direct mechanical grounding construction

By positioning a foot directly beneath the transformer, its vibration is released directly outside the chassis. Furthermore, employing a three-point support system via spike feet eliminates sound muddiness caused by chassis damping, achieving a vibrant and soulful sound.

Rear panel

SPECIFICATIONS

Output	Loudspeakers: 10W × 2 (8Ω), Headphones: 3.0W × 2 (32Ω), Pre-out: 2.0V
Total Harmonic Distortion	Loudspeakers: 0.2% (10Hz to 100kHz, 3.3W, 8Ω), Headphones: 0.03% (10Hz to 100kHz, 200mW, 32Ω), Pre-out: 0.01% (10Hz to 100kHz, 2V, 10kΩ)
Frequency Response	Loudspeakers (8Ω, 1W): 5Hz to 350kHz (+0/-1dB), Headphones (32Ω, 200mW): 5Hz to 400kHz (+0/-1dB), Pre-out (10kΩ 2V): 5Hz to 400kHz (+0/-1dB)
Input sensitivity/impedance	LINE1,2: 0.66V/10kΩ (H), 4.0V/50kΩ (L), LINE3,4: 0.66V/5kΩ (H), 4.2V/25kΩ (L)
Total Gain	H: 22dB, L: 8dB
S/N	115 dB (IHF A network)
Power Supply	230V AC 50Hz / 115V AC 60Hz
Power Consumption	31W, 20W (idling)
Dimensions	430(W) × 109(H) × 418(D) mm
Weight	8.0 kg
Included Accessories	Spikes, Power cable