NAD C 298, stereo power amplifier

INFORMACIJA

NAD C 298 - this is a high-class stereo power amplifier, designed to ensure maximum precision and control in high-quality music systems. Utilizing advanced Purifi Eigentakt™ technology, this amplifier boasts extremely low noise and distortion, allowing speakers to sound natural and detailed. With 185 W per channel (8 Ω) and the ability to operate in mono mode up to 620 W, the NAD C 298 easily handles even demanding speakers. It is an excellent choice for high-end stereo systems and can be used with components such as the NAD C 658 BluOS Streaming DAC. Awarded by EISA and The Absolute Sound.

Power: 185 W x 2 (8 Ω); 340 W x 2 (4 Ω); 620 W (bridge mode, 8 Ω)
THD: <0.005 %
Signal-to-noise ratio: 120 dB
Frequency range: 20 Hz – 20 kHz (±0.2 dB)

DESCRIPTION

The NAD C 298 Stereo Power Amplifier is designed to deliver exceptional clarity and control for high-performance music systems. Built around Purifi Eigentakt™ amplification, it allows loudspeakers to perform with greater precision and ease across a wide range of volumes. The C 298’s performance has earned international recognition from hi-fi and mainstream press, reflecting both its engineering and musical results. Designed to partner naturally with
components such as the NAD C 658 BluOS Streaming DAC, the C 298 provides a stable, transparent foundation for advanced two-channel systems.

KEY FEATURES
Purifi Eigentakt™ amplifier technology for exceptionally low noise and distortion
185 watts per channel of continuous power into 8 ohms
Bridgeable mono mode delivering up to 620 watts into 8 ohms
Stable performance with demanding loudspeaker loads
Balanced and single-ended analogue inputs for flexible system integration
Input level control for precise matching with preamplifiers and sources
Line output for daisy chaining additional amplifiers or system expansion
Auto turn-on with selectable signal-sensing threshold
12V trigger input and output plus ground lug for use in complex systems
Award-winning design recognised by EISA and The Absolute Sound

Purifi Eigentakt Amplification
The C 298 uses Purifi Eigentakt™ amplifier technology to minimise distortion and noise across the entire audible range. This exceptionally linear behaviour allows fine detail, spatial cues, and dynamic contrasts to emerge naturally from recordings. Loudspeakers are driven with greater precision and control, helping music sound more open and effortless, even at higher playback levels.

Power with Control and Headroom
The C 298 delivers high continuous power with generous dynamic reserves, allowing it to handle demanding musical peaks without strain. Its ability to remain stable with demanding loudspeakers ensures consistent performance across a wide range of designs. Whether reproducing subtle passages or wide dynamic swings, the presentation remains composed and authoritative.

Flexible Stereo or Mono Operation
Designed to adapt as systems evolve, the C 298 can operate as a high-performance stereo power amplifier or be bridged into a powerful monoblock delivering 620 watts into 8 ohms. This flexibility makes it easy to start with a single unit and add a second amplifier later when upgrading loudspeakers or expanding a system. Balanced and single-ended inputs, along with adjustable input levels, allow seamless integration with a wide variety of preamplifiers and sources

Designed for Real-World Systems
Beyond raw power, the C 298 is engineered for practical system integration. Features such as auto turn-on with selectable threshold, 12V trigger connections, a line output for daisy chaining, and a dedicated ground lug simplify use in complex setups. These details help maintain low noise, reliable operation, and consistent performance in both visible and hidden installations.

SPECIFICATIONS

ANALOG AUDIO INPUT/LINE OUT
THD (20 Hz – 20 kHz) <0.0005 % at 2V out
Signal-to-Noise Ratio >120 dB (IHF; 20 Hz – 20 kHz, ref. 2V out)
Channel separation >110 dB (1 kHz)
>100 dB (10 kHz)
Input impedance (R and C) Single-ended: 56 kohms + 280 pF
Balanced: 56 kohms +280 pF
Maximum input signal >7.0 Vrms (ref. 0.1 % THD)
Output impedance 390 ohms
Frequency response ±0.1 dB (20 Hz - 20 kHz)
Maximum voltage output -IHF load >7.0 V (ref. 0.1 % THD)
ANALOG AUDIO INPUT/SPEAKER OUT
Rated output power into 8 Ohms and 185 W at 8 ohms
4 ohms (Stereo mode, ref. 20 Hz-20 kHz at
rated THD, both channels driven)
340 W at 4 ohms
Rated output power into 8 Ohms
(Bridge mode, ref. 20 Hz-20 kHz
at rated THD, both channels driven)
620 W at 8 ohms
THD (20 Hz – 20 kHz) <0.005 % (1 W to 185 W, 8 ohms and 4 ohms)
Signal-to-Noise Ratio >98 dB (A-weighted, 500 mV input, ref. 1 W out in 8 ohms)
>120 dB (A-weighted, ref. 185 W out in 8 ohms)
Clipping power (Stereo mode, at 1 kHz 0.1 % THD) >200 W
Clipping power (Bridge mode, at 1 kHz 0.1 % THD) >690 W
IHF dynamic power (Stereo mode, at 1 kHz
 1 % THD)
8 ohms: 260 W
4 ohms: 490 W
2 ohms: 570 W
IHF dynamic power (Bridge mode, at 1 kHz
 1 % THD)
8 ohms: 1000 W
4 ohms: 1100 W
Peak output current >25 A (in 1 ohm, 1 ms)
Damping factor >800 (ref. 8 ohms 20 Hz – 6.5 kHz)
Frequency response ±0.2 dB (20 Hz - 20 kHz)
-3 dB at 60 kHz
Channel separation >100 dB (1 kHz)
>80 dB (10 kHz)
Stereo Mode input sensitivity (for 185 W in 8 ohms) Fixed Gain mode: 1.43 V
Stereo Mode Gain
Line In – Balanced and Single-ended
Fixed Gain mode: 28.6 dB
Variable Gain mode: 8.5 dB – 28.5 dB
Bridge Mode Sensitivity
Line In – Balanced and Single-ended
Fixed Gain mode: 3.78 V for 620 W in 8 ohms
Variable Gain mode at maximum: 1.41 V for 620 W in 8 ohms
Bridge Mode Gain
Line In – Balanced and Single-ended
Fixed Gain mode: 25.4 dB
Variable Gain mode: 14.5 dB – 34.5 dB
Standby power <0.5 W
DIMENSION AND WEIGHT
Gross dimensions (W x H x D) 435 x 120 x 390 mm (17 1/8 x 4 3/4 x 15 3/8 inches)
Net weight 11.2 kg (24.7 lbs)
Shipping weight 13.6 kg (30 lbs)

DOCUMENTS

User manual (EN)
Data sheet (EN)