MOREaudio CS100 – integrated amplifier with “tricky” feedback
07.01.2025 12:05 | ~1 minute read
Polish company MOREaudio has introduced a new integrated amplifier CS100, which, according to the manufacturer, “features an innovative topology inspired by the legendary Single-Ended designs” - in this case, we are talking about a system where abandoned the global feedback loop in favor of local feedback at each stage.
For optimum loudspeaker control, a combination of positive and negative feedback is also used to provide an efficient amplifier output with negative output impedance (-150 mOhm!).
The MOREaudio CS100 integrated amplifier guarantees 2 x 100 W power rating (8 Ohms loudspeakers, when using speakers with an impedance of 4 Ohms, the power will increase linearly up to 2 x 200 W), volume control is possible in 1 dB steps in the range from 0 dB to -64 dB.
MOREaudio CS100 operates in the frequency range of 5 Hz - 120 kHz (-1 dB) and has an extremely low total harmonic distortion + noise of 0.05%. With an input sensitivity of 600 mV, the amplifier provides comfortable matching in a wide range of components.
Specifications
This product is in the Hi-Fi and High End Electronics and Acoustics database
Integrated amplifiers — MOREaudio CS100
Model name
CS100
Type
Integrated amplifier
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
4
Input sensitivity (mV)
600
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
100000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
-0.15
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 x 100
Output power (4Ω) (W)
2 x 200
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
5
Frequency response high +/- 3dB (Hz)
120000
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (%)
0.05
Damping factor
N/A
Dimensions (mm)
340 x 180 x 330
Weight (kg)
15
Official link
More content
Canor Virtus A3 – a Hybrid Integrated "Dual Mono" Amplifier
Canor Audio has introduced the hybrid integrated amplifier Canor Virtus A3. The model uses the "dual mono" topology, a vacuum tube preamplifier on a pair of E88CC tubes, is equipped with a built-in digital-to-analog converter, a phono preamplifier and has a 1.3-inch touch LCD screen.
Nagaoka MP-700 – a Special Type of Moving Permalloy Cartridge
The new Nagaoka MP-700 cartridge tops the Moving Permalloy (MP) series and will be available in the standard MP-700 and premium MP-700H versions. Compared to conventional moving magnet (MM) cartridges, the Moving Permalloy (MP) variant features a lighter permalloy magnet attached to the cantilever.
Sennheiser ACCENTUM Open — New Affordable TWS Headphones from a Famous Company
Sennheiser has introduced the Sennheiser ACCENTUM Open TWS headphones – the model, designed in a stylish compact design, promises, according to the manufacturer, exceptional comfort during use and a secure fit.
Ranieri Audio Labs Varieta – a Preamplifier for Tube-Rolling
The Ranieri Audio Labs Varieta preamplifier has been released – the model uses directly heated triodes and allows for a wide range of tubes (300B, 2A3/6A3, 12A/201A, 26, 30, 31, 45, 50, 71A, 801A/10Y, 275A/252A, 245 and 842/VT52 will do). Simply ideal for those wishing to experiment with tube rolling.
Accuphase C-57 — Balanced Phonostage with Dual Mono Topology
Accuphase has introduced the Accuphase C-57 phono preamplifier, based on a fully balanced circuit design from output to input with dual mono topology. The Accuphase C-57 also uses a two-stage solution: the first stage is the output stage to ensure matching with MM and MC cartridges, the second stage is the correction amplifier itself.
