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Ships to:
Local pick-up only
Ships to:
Local pick-up only

Details about  NAD 218THX 2 Channel Power Amplifier

NAD 218THX 2 Channel Power Amplifier See original listing
Item Sold
Item condition:

It has signs of wear and tear and minor scratches. I chose local pick up only because I dont have

... Read more
May 13, 2013 16:28:39 PDT
US $400.00
Free Local Pickup | See details
Item location:
Boston, Massachusetts, United States


eBay item number:
Seller assumes all responsibility for this listing.

Item specifics

Condition: Used : Split the cost with friends
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab
Seller Notes: It has signs of wear and tear and minor scratches. I chose local pick up only because I dont have the original box and packaging that it came with. It is also very heavy!



Power Amplifier

Number Of Channels:





000540, 540

Detailed item info

Product Information
For sound enthusiasts who are ready to really boost their sound, the NAD 218THX is the 2-channel amplifier of choice. This NAD amplifier has power to spare, with the versatility to engage with many different sound systems and to appeal to many audio listening styles. The NAD 218THX can also suit a wide range of applications, which makes it a very attractive unit for audiophiles who like to play with their systems. This NAD amplifier has a frequency response of 2.5 Hz - 80 kHz with 225-watt power. This unit can also create a 780-watt continuous mono output. Yes, the NAD 218THX is a powerhouse for its size. This 2-channel amplifier has switches to enable the listener to move from stereo to mono modes. A soft-clipping switch on this amplifier protects speakers from damage when the sound is pushed up to higher levels. The NAD 218THX has truly killer power in a 51-lb package.

Product Identifiers
MPN000540, 540

Key Features
Frequency Response2.5 Hz - 80 kHz
Number Of Channels2

Tech Details
Audio SNR 120 dB
RMS Power per channel at 2 ohms660 Watt
RMS Power per channel at 4 ohms430 Watt
RMS Power per channel at 8 ohms225 Watt
THD (Total Harmonic Distortion)0.03 %
No. of Speaker Outputs2
Remote Control Without Remote Control

Depth6.89 inch
Height14.6 inch
Width19 inch
Weight51 lb

- Rated Distortion (THD 20Hz – 20kHz) .03%
- Low loss, massive Holmgren toroidal mains transformer
- Dual mono, Left and Right mirror image amplifier PCBs
- Fully balanced XLR inputs
- Soft Clipping
- Protection circuitry senses short circuits, DC and overheating
- Bridgeable; 700 W into 8 ; 1.2 kW dynamic power into 4.

Stereo Mode:
2 x 225 Watts Continuous Output Power into 8ohms (20Hz – 20kHz)
- IHF dynamic headroom at 8 ohms 1dB
- IHF dynamic power (maximum short term power per channel)
-- @ 8 ohms 280 Watts
-- @ 4 ohms 470 Watts
-- @ 2 ohms 700 Watts

Bridged Mode:
- 1x 780 Watts Continuous Output Power into 8 ohms (20Hz – 20kHz)
- IHF dynamic headroom at 8 ohms 1dB
- IHF dynamic power (maximum short term power)
-- @ 8 ohms 940 Watts
-- @ 4 ohms

The Model 218 THX comes with fully balanced XLR inputs which allow it to be partnered with
professional equipment or with long stretches of cable between the pre- and power amplifier without the
risk of interference. The standard 19 inch rack mounting front panel further facilitate the use of the
Model 218 THX in a professional environment. The output relay protection circuit provides silent switch
on and off, together with non-evasive protection against unlikely error conditions such as short circuits
and overheating.
For maximum flexibility, the NAD Model 218 THX can also be operated in bridged mono mode, typically
tripling its output power rating. This makes the NAD 218 THX an ideal choice for a sub-woofer amplifier
or high powered amplifier in THX or other Home Theater applications.
The Model 218 THX also incorporates NAD's acclaimed switchable "Soft Clipping" circuit which
significantly reduces the risk of damage to loudspeakers due to prolonged high power operation.
NAD was the first company to introduce a THX certified power amplifier. It is therefore no surprise that
the NAD Model 218 THX passes Lucas Films' stringent THX requirements with flying colors.

I have 5 of this amps and Im selling 2. I bought this in 1998 and it served me well up until recently. I am using Emotiva amps and Im still using 2 NAD's for my surround channels. It has been serviced twice since 1998 mainly to replace a transistor. At some point, the unit lost one of its channels and was back up and running after it was fully cleaned and serviced. I used these units on a bridged mode and as a monoblocks. It has some minor scratches but certainly fully operational. Last I had it checked was 2 years ago. 

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