Stereo Power Amplifier
214
Stereo Power Amplifier
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2 x 80 Watts continuous power into 8ohms
Dynamic Power 110, 180, 250 Watts into 8, 4 and 2 ohms
Low loss, massive Holmgren™ toroidal mains transformer
Dual mono, Left and Right mirror image amplifier PCBs
Protection circuitry senses short circuits, DC and overheating
Bridgeable; 240 W into 8ohms; 500 dynamic power into 4ohms
The all-new NAD 214 is part of a new range of power amplifiers which will further enhance NAD's
enviable reputation for state of the art products at sensible prices.
The key design goals of the new range are PERFORMANCE and RELIABILITY. Both are attained at a very
competitive price through efficient innovative design, simple circuitry and meticulous engineering.
Circuitry
The NAD 214 is designed with the capability to drive all types of musical signals effortlessly into the even
most unreasonable of loudspeakers loads, down to below 1ohms. This is achieved by implementing a
high output current amplifier powered from a "stiff" power supply.
Pioneered by NAD for the highly acclaimed 208THX , the 214 couples a bank of reservoir capacitors to a
large toroidal transformer. Using a bank of capacitors rather than a single pair is both technically
superior and more economical.
The special Holmgren™ toroidal transformer has less hum and magnetic leakage than conventional
toroidal transformers but retains the usual benefits of high efficiency and high power to weight ratio.
The entire "front-end" is fed from a separate low-noise, high voltage, discrete component regulated
power supply which effectively isolates the amplifier from power ripple and noise. Careful design
incorporating sensible grounding results in an amplifier with an exceptionally clean, noise free output
signal.
Additional features
For maximum flexibility, the NAD 214 can operate in bridged mono mode, typically tripling its
continuous power rating into 8ohms. This makes the NAD 214 an ideal choice for a sub-woofer
amplifier or high power centre channel amplifier in home theater applications. A pair of bridged NAD
214 's becomes a high current, high power stereo power amplifier, while retaining the refinement
associated with smaller amplifiers.
The output relay protection circuit provides silent switch on and off, together with non-evasive protection
against error conditions such as short circuits and overheating.
The NAD 214 also incorporates NAD's acclaimed switchable "Soft Clipping" circuit which significantly
reduces the risk of damage due to prolonged high power operation.
The listening experience
The technological effort behind the NAD 214 results in a relaxed unstrained musicality with transparent ,
airy high frequencies, a deep, solid bass foundation and a smooth well-integrated midrange.
SPECIFICATIONS - NAD 214
Stereo Mode
CONTINUOUS AVERAGE OUTPUT POWER
80W (19dBW)
(Minimum power per channel, 20Hz-20kHz, both channels driven, with no more than rated distortion)
Rated distortion (THD 20Hz-20kHz)
Clipping power (maximum continuous power per channel)
IHF dynamic headroom at 8
IHF dynamic power
(maximum short term power per channel)
Slew rate
Damping factor (ref. 8 , 50Hz)
Input impedance
Input sensitivity (for rated power into 8 )
Voltage gain
Frequency response 20Hz-20kHz
Signal/Noise ratio
8
4
2
-3dB at: 2Hz/100KHz
ref 1 W
ref. rated power
THD + SMPTE I.M. + IHF I.M.
Bridged (Monophonic) Mode
CONTINUOUS AVERAGE POWER OUTPUT INTO 8
0.03%
105W
+1.5dB
110W (20.4dBW)
180W (22.6dBW)
250W (24 dBW)
>60V/µsec
>200
60k + 500pF
0.9V
x 28.3 (29dB)
±0.2dB
98dB
115dB
<0.03%
240 (23.8dBW)
(Minimum power per channel, 20Hz-20kHz, both channels driven, with no more than rated distortion)
IHF dynamic headroom at 8
IHF dynamic power
(maximum short term power per channel)
Physical Specifications
Dimensions (W x H x D)
Net weight
Shipping weight
8
4
+1.8dB
360 (25.6dBW)
500 (27dBW)
435 x 128 x 383 mm
11.3kg
12.8kg
Dolby is a registered trademark of Dolby Laboratories Ltd.
THX is a registered trademark of Lucas Film Co.
NOTE: NAD reserves the right to change specifications or design at any time without notice. All specifications are those in effect at time of printing.
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