511 stereo amplifier

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soulution 511 stereo amplifier

Precision, stability and velocity...

... just a razor-thin fraction behind our reference designs of Series7, this was the design goal we have set for the 511 stereo amplifier. The 511 is equipped with the same "switched-mode" power supply technology, optimized for audiophile applications, as our series7 products. Additionally it is optimized for shortest "signal paths" for the music signal but as well for shortest paths and optimal flow of the current supplying the amplifier stages. Get inspired by the uncompromising music playback and enjoy the diversity and natural beauty of the music. A sound experience, of which everyone will be enchanted.

Convince yourself!

Key Features

- "Switched Mode" power supply (4 x 600VA ) optimized for use in audio amplifiers

- more than 500'000 µFarad of storage capacitance in the power supply

- Peak current rating of more than 60A

- versatile: stereo-, mono- und dual-mode

- Impulse power rating> 3'000 Watt (stereo/dual), > 6'000 Watt (mono)

Highlights

Operating modes

The 511 stereo-amplifier can be used in three different setups:

- Stereo-mode: 140W @ 8Ω, 280W @ 4Ω, 560W @ 2Ω per channel

- Dual-mode: 140W @ 8Ω, 280W @ 4Ω, 560W @ 2Ω per channel

- Mono-mode: 560W @ 8Ω, 1'120W @ 4Ω, 2'000W @ 2Ω

The operating mode can be changed in the menu functions of the 511 stereo amplifier.

Amplification

The amplification circuit similar to the technology used for the 711 and 701 amplifiers. At its core is a proprietary voltage amplification stage that consists of linearized amplifiers operating up to a cut-off frequency of 80MHz. Current amplification is done in three stages, each using a very small and thus almost linear operating range. The high Class A operation supplemented by 500,000µF of storage capacitance in the power supply 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 511stereo amplifier is available to drive the speaker. This ensures the 511 does not get the plaything of the loudspeakers, but controls them with the appropriate precision, power and velocity asked for by the music signal. 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 switch on.

Power supply

A total of 10 power supplies - optimized for each function - feed the 511 stereo amplifier. Circuitry that does not process audio signals should not be able to influence them. Therefore those supplying the digital and audio circuits are electrically isolated from each other by optocouplers. Four cutting-edge switched-mode power supplies combined with more than 500'000 µFarad of storage capacitance deliver 2,400W of audiophile quality power. They feature high performance filtering at the input and output, and six linear, high speed, ultra low noise voltage regulators to deliver considerably more stable power than any conventional, transformer-based technology.

Safety

Control circuits that protect the 511 stereo amplifier 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. In case a malfunction is detected the 511 stereo-amplifier is muted and will automatically power down.

Operation

The 511 stereo amplifier is operated via push buttons and a rotary control on the front panel. It can be switched on remotely with other soulution devices via the LINK system.

Connectors

Analogue inputs:

- 1 x balanced input (XLR)

Analogue outputs:

- 1 x balanced output (XLR)

- 1 pair speaker binding posts

LINK-System

- 1 x RJ45

Measurements

THD vs. Power:

The diagram shows the power measurement into an 8Ω load. In contrast to other power amplifiers, distortions remain on a minimal level over the entire power bandwidth. Only once the power limit is reach and the soft-clip power limiter kicks-in the distortion starts to increase.

Fast Fourier Transfer (FFT)

Measurement for a 1kHz sine signal with 50 watts output power into an 8Ω load. All distortion components are below -115dBr and thus over 550,000 times smaller than the music signal.

Frequency response

Gain at 100kHz is reduced by less than 0.1dB. The -3dB limit is only reached at 800kHz.

Specifications


Stereo/Dual Mode

Mono Mode

Power



Audio

2× 140

W @ 8Ω

560

W @ 8Ω

2 ×280

W @ 4Ω

1'120

W @ 4Ω

2 ×560

W @ 2Ω

2'000

W @ 2Ω

Standby consumption

<0.5<>

W

<0.5<>

W

Idle consumption

150-200

W

150-200

W

Input





Impedance

XLR 2

XLR 2

Sensitivity

1.55

Vrms

1.55

Vrms

Output





Voltage max.

35

Vrms

70

Vrms

Current max

>60

A

>60

A

Impuls rating

>2×3'000

W

>6'000

W

Gain

+26

dB

+32

dB

Frequency response

DC-800

kHz

DC-1.6

MHz

Settling time

900

ns

450

ns

Distortion (THD+N) @ 1kHz

<0.004<>

%

<0.0004<>

%

Signal to Noise (SNR) @ 1kHz

>107

dB

>101

dB

Damping factor @100kHz

> 10'000


> 5'000


Dimesnions





width x height x depth

442 x 265 x 448 mm

442 x 265 x 448 mm

weight

32

kg

32

kg