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Equipment > Amplification > Integrated Amp > NAD - C 326BEE Integrated Amplifier **OPEN BOX**
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NAD ELECTRONICS NAD - C 326BEE Integrated Amplifier **OPEN BOX**

Integrated Amp

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** THIS ITEM IS A DEMO - Full Manufacturer's Warranty **

NAD C 326BEE Stereo Integrated Amplifier

The NAD C 320 series of amplifiers have always punched far above their modest weight. Combining the highest levels of audio engineering with an extensive feature list, and more than adequate power for all but the most ambitious systems, the C 326BEE keeps the concept of affordable hi-end alive and well. With the very high dynamic power and low impedance drive capability of NAD's proprietary PowerDrive circuit, the C 326BEE is able to accurately control even difficult to drive loudspeakers while sounding musical, detailed, coherent and relaxed.

The C 326BEE is the latest in NAD's range of affordably priced, high performance Stereo Integrated Amplifiers. Neatly slotted in between the C 315BEE and more powerful C 355BEE, the C 326BEE boasts many upgrades and refinements taken directly from the highly acclaimed NAD Masters Series M3 Amplifier. These include the Distortion Canceling Circuit in the output stage and BEE Clamp in the power supply. An improved tone control circuit and revised PCB layout has reduced distortion and noise to unprecedented levels. Taken together, these improvements mark a sharp upturn in performance that must be heard to be fully appreciated.

The C 326BEE comes supplied with the NAD SR 8 system remote control. The remote control features an ergonomic form, with large buttons that are differentiated by shape and position, to make operation intuitive and enjoyable. The SR 8 will also operate many other NAD products such as CD players, tuners, etc. Flexibility is another NAD strong point. The C 326BEE has 7 line inputs and the pre-amplifier section can be separated from the power amplifier for easy upgrades or adding ancillary equipment. Thus the C 326BEE can be expanded to meet future system needs.

The C 326BEE sports a pre-amp output: Many systems benefit from the use of multiple power amplifiers for "Bi-Amping" (using separate power amplifiers to drive the bass and treble section of a loudspeaker). Additionally, there are two monophonic Subwoofer outs that can be connected to powered subwoofers - an increasingly popular option.

For remote on/off switching of ancillary components in a system, such as power amplifiers or active speakers, the C 326BEE is equipped with a 12V-trigger system. When switching the amplifier on, the 12V-trigger output is also activated which in turn can activate a 12V-trigger input switching on the remote devices. Besides the 12V-trigger, the C 326BEE also has rear panel IR ins and outs.

It is fashionable to omit tone controls nowadays: However, provided that the tone controls are properly designed, they can be really useful tools in making improvements to the overall sound. The C 326BEE tone controls only work at the frequency extremes leaving the critical mid-band essentially unaltered. The tone control circuits can be completely bypassed by using the Tone Defeat control button. The C 326BEE also incorporates NAD's acclaimed switchable "Soft Clipping" circuit, which significantly reduces the risk of damage to loudspeakers due to prolonged high power operation.

PowerDrive Design
The C 326BEE also benefits from NAD's proprietary PowerDrive circuit topology. This allows the C 326BEE to deliver maximum performance under virtually any circumstance, independent of the loudspeakers it is driving. The circuitry automatically senses the impedance characteristics of the loudspeaker and will then adjust its power supply settings to best cope with that specific load. PowerDrive topology is a practical approach to enable an amplifier to easily deal with musical dynamics and difficult speaker loads.

The C 326BEE has the lowest levels of distortion and noise available in its price class and is easily capable of embarrassing far more expensive products. NAD uses Full Disclosure Power (FDP) - the most demanding criteria for performance measurement. FDP specifies distortion under the most extreme conditions of low impedance loads and frequency extremes rather than the simple and easy 1kHz @ 8 Ohms test quoted by many. This stricter performance criterion more closely matches the demands of real music and real loudspeakers. Maintaining specified distortion at 4 Ohms and at 20Hz and 20kHz is several orders of magnitude more difficult to achieve than the simple 8 Ohms and 1kHz test.

  • 2 x 50W Continuous Power into 4 ohms and 8 ohms
  • 100W, 150W, 200W IHF Dynamic power into 8, 4 and 2 ohms, respectively
  • PowerDrive circuit
  • NAD SR 8 Full System Remote control
  • Headphone socket
  • Front panel Media Player (MP) input for attaching portable MP3 Player
  • Relay Input Switching
  • Holmgren Toroidal Power transformer
  • 7 Line inputs, including one tape in/out
  • All discrete circuitry Short signal path from input to output
  • All sockets Gold plated
  • Tone controls defeat switch
  • Main-amp input & pre-amp outputs
  • Subwoofer (mono) Out
  • Soft Clipping
  • IR Input/Output
  • 12 volt trigger out
  • Detachable IEC Power Cable
  • <1W Standby Power Consumption
  • Free of lead and other environmentally dangerous substances

THD (2 Vin 2 Vout, CCIF IMD, DIM 100): >0.004 % (ref. 20 Hz – 20 kHz)
Signal/Noise ratio IHF:
    >100 dB (A-weighted, ref. 500 mV)
    >108 dB (A-weighted, ref. 2V, Volume maximum)
    >92 dB (A-weighted, ref. 100 mV in 100 mV out - unity gain)
Channel separation:
    1 kHz >80 dB
    10 kHz >70 dB
Input impedance (R + C): 100 kΩ + 320 pF
Maximum input signal: >8 Vrms (ref. 0.1 THD)
Output impedance: - Pre out 75 Ω
Tape out Source: Z + 1 kΩ
Input sensitivity: 159 mV (ref. 500 mV out)
Frequency response:
    ± 0.1 dB (ref. 20 Hz - 20 kHz, Tone defeat ON)
    ± 0.5 dB (ref. 20 Hz - 20 kHz, Tone defeat OFF)
Maximum voltage output
IHF load:
     >10 V (ref. 0.03% THD)
    600 ohms load: >10 V (ref. 0.03% THD)
Tone controls:
    Treble: ± 5 dB at 10 kHz
    Bass: ± 8 dB at 100 Hz

Power Amp
Continuous output power: >50 W (ref. rated THD, 20 Hz-20 kHz, both channels driven)
Rated THD (CCIF IMD, DIM 100): <0.009 % (ref. 20 Hz - 20 kHz)
Clipping power: >65 W (ref. 1 kHz 1% THD)
IHF dynamic power:
    8 Ω 100 W
    4 Ω 150 W
    2 Ω 200 W
Peak output current: >20 A (ref. 1 Ω, 1 ms)
Signal/Noise ratio:
    >100 dB (A-weighted, ref. 1 W)
    >117 dB (A-weighted, ref. 150 W)
Damping factor: >100 (ref. 8 Ω, 50 Hz and 1 kHz)
Frequency response:
    ± 0.1 dB (ref. 20 Hz - 20 kHz)
    3 Hz – 70 kHz (ref. -3 dB)
Input impedance: 20 kΩ + 1 nF
Input sensitivity: 630 mV (ref. rated power)
Voltage gain: 29 dB
Headphone output impedance: 68 Ω
Channel separation:
    1 kHz >80 dB
    10 kHz >70 dB
Trigger Out:
    Output resistance: <100 Ω
    Output current: 50 mA
    Output voltage: +12 V

CD In , Speaker Out
THD (250 mW to rated power, CCIF IMD, DIM 100): <0.009 % (ref. 20 Hz - 20 kHz)
Signal/Noise ratio:
    >94 dB (A-weighted, ref. 1 W)
    >110 dB (A-weighted, ref. 50 W, volume set for 2V input)
Frequency response:
    ± 0.2 dB (ref. 20 Hz - 20 kHz, Tone Defeat ON)
    10 Hz – 65 kHz (ref. -3 dB)
Channel separation:
    1 kHz >80 dB
    10 kHz >70 dB

Power Consumption
Rated power 290 W (ref. 230V AC 50 Hz; 120V AC 60 Hz)
Standby power <1 W
Idle power <35W

Dimensions (WHD): 17.1" x 4" x 11.3"
Weight: 20 lbs.
Warranty: User Interfaces - one year parts and labor to the original purchaser. Two years parts and labor to the original purchaser on all other products

User Manual (PDF, 781 KB)

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