Soulution 530 Integrated Amplifier

An uncompromising preamplifier and an uncompromising power amplifier, both of reference quality, combined in one housing. That is the way we at Soulution understand the concept of an integrated amplifier. Enjoy the purity and power this music machine can deliver.

Highlights

Philosophy
Most integrated amplifiers combine the functions of volume control, source selection, and amplification in a single multi-function circuit.

Not so the solution 530 Integrated amplifiers. It takes the uncompromising route of separate circuits, combining a dedicated reference-quality preamplifier, and a dedicated reference-quality power amplifier in one housing.

It is a real solution product – truly a great amplifier.

Design
The audio section of the 530 is physically separated from the power supply and digital circuits. To reduce interferences to a minimum, these sections are additionally shielded. The power amplifier section is executed in a dual-mono layout. The left and right audio channels have their respective identical boards to deliver a channel separation of >110dB for a three-dimensional sound stage.

Amplification
The amplification circuit of the 530 is based on the technology of the 710 and 700 amplifiers. At its core is an innovative voltage amplification stage that consists of linearized amplifiers operating up to a cutoff frequency of 80MHz.

Current amplification is done in three stages, each with a narrow, almost linear operating range. The high Class A operation supplemented by 47,000µF of storage capacitance results in a nearly infinite impulse response. Massive copper bars on the amplifier board and to the speaker terminals ensure that all the power of the 530 is available to drive the speaker.

High-precision idle current management ensures optimal Class A operation for all conditions, without requiring any readjustment in the music signal. Optimal sound is thereby guaranteed immediately from the switch on. Control circuits that protect against RF or DC signals at the input, and short circuits at the output ensure safe operation in all situations. The input level is also monitored continuously.

Power supply
A total of nine power supplies – optimized for each function – feed the 530 integrated amplifiers. Those supplying the digital and audio circuits are electrically isolated from each other by optocouplers and transformers. Four cutting-edge switched-mode power supplies deliver 2,400W of audiophile-quality power. They feature high-performance filtering at the input and output, and six high-speed solution voltage regulators to deliver considerably more stable power than any conventional, transformer-based technology.

Volume control
The 530’s volume control uses only high-precision, low-noise metal foil resistors, and it controls both the volume and balance. To block switching peaks during volume changes which may be hazardous to power amps, the 530 is equipped with a second volume control with PGA (Programmable Gain Amplifier). Active only during the volume control process, it is similar to a potentiometer and enables the volume to be adjusted smoothly without clicks. As soon as the new desired level value has been selected, the unit returns control to the precision resistors.

Pre-Out
The solution 530 integrated amplifiers are equipped with pre-out connections which enable subwoofers, tape recorders or other amplifiers to be driven directly by the 530’s preamplifier section, bypassing the power amplifier section.

Surround mode
Surround mode allows users to optimally integrate the 530 with AV systems. In surround mode, the input signal bypasses the preamplifier section without any adjustment for volume or balance.

Operation
The 530 integrated amplifier is operated via its three front panel buttons and rotary control. Multi-functional, these allow optimization of the entire audio system and an ideal set-up of the individual components. All operating modes are indicated on the clear display.

Specifications

Mains- 220-240V (50-60 Hz)

100-120V (50-60 Hz)

Power consumption- <0.5W standby 

idle 150W

max 1600W

Outputs- 2 pairs Cu-terminal, 

gold plated

Gain- -31 dB bis + 42 dB

Power output- 125 W @ 8 Ω

250 W @ 4 Ω

500 W @ 2 Ω

Pluse power- > 5,000 W

Frequency response (-3 dB)- 0-800 kHz

THD+N- <0.001% at 50 W @ 4 Ω

(20Hz-20kHz) 

IM distortions- <0.005% SMPTE

<0.0006 CCIR

Signal-to-noise ratio- >120 dB (5 W @ 1kHz)

Channel separation- >110 dB @ 1kHz

Damping factor- >10000

Output current max- 45 A (limited) 

Inputs- 2 x balanced (XLR)

2 x unbalanced (RCA)

1 x Phono (RCA)

Input impedance- 3 kΩ balanced (XLR)

3 kΩ unbalanced (RCA)

Phono configurable

Dimensions- 442 x 350 x 448 mm

(W x H x D)

Weight- approx. 40 kg

LINK (remote turn-on)- 12 V control signal