NAD 2700 THX for $100???

nhhiep · May 2010

is it a good deal? I am using HK PA5800 amp now with only 80WPC for Rti8s.. so this NAD is pretty much double the power. between NAD and HK, which one has a warm sound?

Here are some specs from NAD.

150 watts per channel.
Rated distortion (THD 20Hz - 20kHz) 0.03%
Clipping power (maximum continuous power per channel) 200W
IHF Dynamic headroom at 8 ohm +4.3dB
IHF dynamic power (maximum short term power per channel) 8 ohm 400W (26 dBW)
4 ohm 600W (28 dBW)
2 ohm 800W (29 dBW)

Damping factor (ref. 8 W, 50Hz) >120
Input impedance 20kW / 820pF
Input sensitivity (for rated power into 8 ohm) 1.2V
Frequency response 1Hz - 80kHz / (+0, -3dB) THX
Signal/noise ratio ref. 1W 100 dB
ref. rated power 122 dB
THD (20Hz - 20kHz) <0.03%
Bridged Mode
In exc cond.
Continuous output power into 8 ohm 400W (26 dBW)
IHF Dynamic headroom at 8 ohm +5dB
IHF dynamic power (maximum short term power per channel) 8 ohm 1.2 kW (31 dBW)
4 ohm 1.6 kW (32 dBW)

DollarDave · May 2010

I've had both. Both are slightly on the warm side, but I would say the NAD is a tad bit more so. The NAD simply sounds better to me and I kept it. The HK moved on.

BTW, for $100 it is a great deal. You should be able to sell the HK for somewhere around $150.

nhhiep · May 2010

The seller also has this note. should I be worried? and what is the difference between THX input vs. Normal input?

NOTE: This has outputs for both NORMAL and THX- 2 separate sets of outputs, but they output exactly the same sound. The NORMAL output has the problem of intermittent audio that was typical of the NAD 2200, 2600, and 2700 THX: Especially noticed at low volume, it "punches through" as volume is increased. Caused by weak relay contacts. What this means is that the sound is subdued, but when you turn it up a bit, it plays just fine. This is NOT an issue with the THX outputs- just the NORMAL outputs- and the sound is exactly the same through both outputs, i.e, Normal and THX sound is identical..

hoosier21 · May 2010

if it has that problem with the normal inputs, I am not sure how he doesn't have the same problem with the THX inputs, as the relays are on the output side of the amp.

billbillw · May 2010

Sounds like the amp needs a little TLC. NADs are usually easy to work on and they use pretty common parts that are easy to source. For $100, I'd get it and see what the problem is. Might need a few caps replaced, might need to clean (or replace) the relays, might just need to de-oxit the level pots.

NAD 2700 THX for $100???

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