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
Treehaus Audiolab LCR Phono – a Vacuum Tube Phonostage with Passive Equalization
Treehaus Audiolab has announced the Treehaus Audiolab LCR Phono reference vacuum tube phono preamplifier. To equalize the signal, the device uses only passive components: inductors (L), capacitors (C) and resistors (R).
Rotel DX-5 – a Tiny Amplifier Operating in Class A/B
Rotel DX-5 is a compact model, but despite its dimensions, the device does not use digital amplification and operates in class A/B, reaching 2 x 33 W into 4 Ohm load and 2 x 25 W into 8 Ohm speakers. The new product is equipped with a power supply based on a powerful toroidal transformer created by Rotel itself, and high-current transistors.
TOTALDAC d1-total – a Fully “Packed” DAC and Streamer
The Totaldac d1-total digital-to-analog converter has been introduced – according to the company, this device guarantees the maximum possible for a single-block design with external PSU. “Under the hood”, in addition to the d1-triunity DAC converter, there is also volume control, a network streamer (latest version developed for the d1-streamer-live), 40 femtoseconds oscillators, a microfilter USB loop (developed for the d1-streamer-live) and anti-vibration supports.
Audio-Technica Hotaru – a Firefly Turntable
Japanese company Audio-Technica has announced the imminent opening of pre-orders for a limited edition of the innovative Audio-Technica Hotaru turntable (since May 30, 2025). The model will go on sale in October of this year at a price of $ 9,990 US - only 1000 turntables will be made.
PS Audio Introduced The Paul McGowan Signature Series
PS Audio has released a line of new components - The Paul McGowan Signature Series, which includes a preamp, DAC, disk transport and phonostage. All components feature innovative circuitry and offer impressive performance.
