NAD Electronics Theater 216THX User's Manual
Contents
1. 216THX Stereo Power Amplifier e 2 x 125 Watts continuous power into 80hms 2 x 200 Watts into 4ohms e Dynamic Power 170 280 400 Watts into 8 4 and 2 ohms respectively e Low loss massive Holmgren toroidal mains transformer e Dual mono Left and Right mirror image amplifier PCBs e Protection circuitry senses short circuits DC and overheating e Bridgeable 400 W into 8 800W dynamic power into 4 The all new NAD 216 THX 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 216 THX is designed with the capability to drive all types of musical signals effortlessly into the even most unreasonable of loudspeakers loads down to below lohms This is achieved by implementing a high output current amplifier powered from a stiff power supply Pioneered by NAD for the highly acclaimed 208 THX the 216 THX 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 o2. f 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 216 THX can operate in bridged mono mode typically tripling its continuous power rating into 8ohms This makes the NAD 216 THX an ideal choice for a sub woofer amplifier or high power centre channel amplifier in home theater applications A pair of bridged NAD 216 THX s becomes a high current high power stereo power amplifier while retaining the refinement associated with smaller amplifiers NAD was the first company to introduce a THX certified power amplifier It was therefore no surprise the NAD 216 THX passed Lucas Films stringent THX requirements with flying colours As a result the NAD 216 THX will handle all dynamics with ease and yet retain every subtle detail in the most demanding THX Dolby Surround systems 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 216 THX also incorporates NAD s acclaimed switchable Soft Clipping circuit which significantly reduces the risk of damage due to prolon
3. ged high power operation The listening experience The technological effort behind the NAD 216 THX results in a relaxed unstrained musicality with transparent airy high frequencies a deep solid bass foundation and a smooth well integrated midrange SPECIFICATIONS NAD 216THX Stereo Mode Continuous Average Output Power 125W 21dBW Minimum power per channel 20Hz 20kHz both channels driven with no more than rated distortion Rated distortion cran 2012 20117 0 03 Clipping POWET maximum continuous power per channel 160W IHF dynamic headroom at 80hms 1 3dB IHF dynamic power 8 170W 22 3dBW maximum short term power per channel 4 280W 24 5dBW 2 400W 26dBW Slew rate gt 70V sec Damping factor ref sohms sort gt 200 Input impedance 60k 500pF Input sensitivity for rated power into Sohms 1 1V Voltage gain x 28 3 29dBW Frequency response 20Hz 20kHz 0 2dB 3dB at 2Hz 100kHz Signal Noise ratio ref1W 98dB ref rated power 119dB THD SMPTE LM IHF LM lt 0 03 Bridged Monophonic Mode Continuous Average Power Output into 8ohms 400W 26dBW Minimum power per channel 20Hz 20kHz both channels driven with no more than rated distortion IHF dynamic headroom at 8ohms 1 5dB IHF dynamic power 8 560W 27 5dBW maximum short term power per channel 4 800W 29dBW Physical Specifications Dimensions wxnxD 435 x 146 x 383 mm Net weight 14 2ke Shipping weight 16kg NOTE NAD reserves the right to change specif
4. ications or design at any time without notice All specifications are those in effect at time of printing
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