The T 778 is a home theater receiver by NAD. It is a 9-channel design using a D output stage. A minimum impedance of 4 ohms makes it compatible with a wide range of loudspeakers. It also has a phono input, so a turntable can connect straight to it. The NAD T 778 has an MSRP of $4,799.
Performance Specs
One of the most important factors when deciding on a home theater receiver is its power ratings and compatibility with your speaker's impedance requirements. The NAD T 778 is rated at 140 watts RMS into 8-ohms (2 channels driven).
Here are the main highlights of its performance specs:
- 140 watts into 8-ohms
- 4-ohms Min Impedance (allows compatibility with a wide range of loudspeakers)
How loud will 140 watts actually play in your room? →
Wiring more than one pair of speakers to it? Check the load first →
Need more power?
NAD T 778 is rated at 140 watts into 8 ohms, which puts it in our 121 to 180 watts band. The next band up is Over 180 watts, which is worth about 2.3dB more output. That is a real difference in headroom on peaks, and a modest one in how loud the system plays - power and loudness are not the same thing.
Before buying watts, check what your speakers actually need: the amp and speaker matcher works it out from their sensitivity, impedance and your room. Plenty of systems are better served by the 91 to 120 watts band and better speakers.
When pairing the NAD T 778 with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
Inputs and Outputs
Besides the performance specs of the NAD T 778, the next important feature set that you have to evaluate is the input and output selections that it offers.
NAD T 778 has total of 2 Analog inputs .
Inputs
- Total Number of Analog Inputs: 2
- Phono Input
- 2 Optical Digital Input
- 2 Coaxial Digital Input
- USB Input
Outputs
- Speaker Outputs
- 11.2-channel Preamp Outputs
- Subwoofer Output (Dual)
- HDMI Output (2)
Surround Sound and Channels
NAD T 778 is a 9.2-channel receiver, powering 9 speakers directly - the .2 is 2 subwoofer outputs, not extra amplified channels. It decodes Dolby Atmos, DTS:X.
Video and HDMI
An AV receiver is the switch every source passes through on its way to the
television, so what it can carry sets a ceiling on the rest of the system.
Room Correction
NAD T 778 includes
Dirac Live.
Room correction measures the speakers where they actually stand and corrects
for what the room does to them, which in a multi-channel system matters more
than in a stereo one - the surround and height channels are usually the ones
placed where they fit rather than where they should be.
NAD T 778 Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓9 channels of amplification on board.
- ✓6 HDMI inputs and 2 outputs, HDMI 2.0b.
- ✓Decodes Dolby Atmos and DTS:X.
- ✓Room correction: Dirac Live.
- ✓Subwoofer outputs: Dual - more than one sub is the cheapest route to even bass in a real room.
- ✓Has a phono input, which most receivers at any price no longer bother with.
- ✗The 140-watt rating is measured with two channels driven; expect less with every channel working, which is how a receiver actually runs.
- ✗HDMI 2.0b rather than 2.1, so 4K at 120Hz and the gaming features that come with it are not available.
NAD T 778 External Dimensions and Weight
NAD T 778 has external dimensions of (H x W x D) (141.2 x 435.1 x 455.7mm ). The unit weighs
12.11 kg (26.7 lbs).
Base Surface Area
Base surface area of a home theater receiver may become an important decision factor when the space in your room or desk is limited.
The base area of the NAD T 778 is approximately 1982.8cm2 / 307.3inch2.
- Width: 435.1mm (17.13")
- Height: 141.2mm (5.56")
- Depth: 455.7mm (17.94")
- Weight: 12.11 kg (26.7 lbs)
- Base Surface Area: ~1982.8cm2 / 307.3inch2
- Volume: ~28.0 liter / 7.4 gallon
| General |
| Brand |
NAD |
| Full Model Name |
NAD T 778 |
| Amplifier Type |
Home Theater Receiver |
| Number of Channels |
9 |
| Amp Class |
D |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
140 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
N/A |
| Frequency Bandwidth |
|
| THD |
|
| Minimum Impedance |
4 |
| Signal to Noise Ratio |
N/A |
| CONNECTIONS |
| Total Analog Inputs |
2 |
| Phono Input |
Yes |
| Optical Digital Inputs |
2 |
| Coaxial Digital Inputs |
2 |
| USB Input |
Yes |
| Preamp Outputs |
11.2-channel |
| Removable Power Cord |
|
| PHYSICAL SPECS |
| Height |
141.2mm (5.56") |
| Width |
435.1mm (17.13") |
| Depth |
455.7mm (17.94") |
| Weight |
12.11 kg (26.7 lbs) |
| OTHER |
| Parts Warranty |
|
| Labor Warranty |
|
What amplifier class is the NAD T 778?
The NAD T 778 uses a Class D amplifier design. Class D is a modern switching design that runs cool and wastes very little energy as heat, which is how makers fit high power into a compact, light chassis.
Can I connect a turntable to the NAD T 778?
Yes. The NAD T 778 has a built-in phono stage, so a turntable can be connected directly without a separate phono preamp.
Can I connect a subwoofer to the NAD T 778?
Yes. The NAD T 778 has dual subwoofer outputs, so you can add a powered subwoofer to extend the low end below what your main speakers manage.
How much does the NAD T 778 cost?
The NAD T 778 has a manufacturer's list price (MSRP) of $4,799.
Was this receiver review useful?
Tell us what is missing or wrong and we will fix it.