It's been a week since I installed the NVX VDA 11005, and I have found myself wanting to sneak away to my car for a listening session just to appreciate and absorb the improved sound fidelity over my previous amp.
The NVX replaced a failing Pioneer 5 channel amp that had slowly been reduced to two channels over the past 5 years. It's the second popular name brand amp that has failed me in the last ten years, so I decided to try this amp and see what happens. I obviously cannot speak to longevity yet, but the improved sound quality...man...it's noticeable.
Installation was a breeze as I already had everything in place. It has a slightly smaller footprint than the Pioneer which is nice. Wiring was straight forward and easy. The only catch is that the power and ground inputs have a little trouble accepting my 4 gauge wire which was a bit surprising. It's not as clean as I would like, and I'll probably revisit it soon.
Tuning was surprisingly quick relative to my previous amps. I was able to get the sound right in the pocket without much fiddling with gain and filters. The subsonic filter may have something to do with the quality of sound. Neither of my previous amps had this feature and I suspect that my 12" subwoofer was having to work harder than it should have, trying to produce sound that it isn't capable of handling. The result is a cleaner, warmer, and thumpier base that is less directional and more consuming. It's less a shower and more a bath of sound now.
I have 6.5" components up front, coax in the rear deck and of course the 12" sub in the trunk. There's plenty of power to each channel, and really, the stock satellite speaker wiring is probably limiting me at this point. The sub is a 4 ohm DVC wired in parallel to run at 2 ohm which the 5th channel gladly supports. The remote bass boost knob let's me push the sub as hard as I want to but I don't care to know the limit or come close to it. It's plenty of power for my liking. Btw, I would recommend using a capacitor to ease the power draw on your battery.
Overall this is a fantastic amp for the money and is a huge win for NVX, which is a Sonic Electronics in house brand from what I understand.
Nice.
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Product Description
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VADM4 400W RMS V-Series
The VAD Series of amplifiers are available in a number of different sizes and meant for a number of different applications. The VADM line is incredibly compact and can be placed nearly anywhere in your vehicle. The larger VAD amps are more powerful and they have RMS power rating all the way up to 2700 Watts RMS for the most powerful of subwoofers.
Introducing the VAD M-line of amplifiers. This new line of revolutionarily compact and surprisingly powerful amps will blow you away. This specific VADM4 amplifier has a total RMS power output of 400W all in a chassis not much larger than a dollar bill.
General Features
- Marine Certified 4-Channel Class D Car Amplifier
- 4 ohms: 75 watts x 4 chans.
- 2 ohms: 100 watts x 4 chans.
- Bridged, 4 ohms: 200 watts x 2 chans.
- Cutting edge Micro Class D technology allows the amplifier to be extremely compact
- Conformal Coated Marine grade circuit board
- 3-way protection circuitry (thermal, overload, and speaker short protection)
- Selectable crossover modes: FULL / HPF / LPF
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V-Series Amplifiers From NVX
NVX®, Victor Fitness®, Belva® Official
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Impressed
After over 40 years as an audio technician I have tried tested and installed numerous different power amps over the years. Having purchased this one the quality of construction is very good, the end sound result is excellent and it does produce the RMS figures stated, in fact it exceeds them so top marks to NVX for being transparent unlike many other of the manufacturers.The only negatives I can say are 1. the mounting holes are small, meaning you have to use smaller bolts or screws than one would like, secondly there is no illuminated logo, this is surprising considering the rest of the quality of this unit, not only does a lighted logo look great aesthetically, but also especially on a boat where the unit is under cover for protection, you cannot at a glance see if its turned on in certain installation positions without crawling under it and looking for the little blue LED light, you dropped the ball there NVX.Re the smallish mounting holes i used two strips of aluminum with keyhole type holes so as instead of holding the amp in the air whilst you mark or drill the holes, you can install the screws into the boat fiber wall the just hang the unit over the screws to then secure the two bottom screws. The actual unit is mounted to the ally strips with nylon washers and stainless bolts. Highly recommend this unit as its a class above most at the price and certainly equal in quality to Fusion, Garmin etc which are 4 times the price. GOOD JOB NVX Last but not least this is installed on a 2001 Sea Ray 240 Sundeck in the under helm area. The Amps are supplied by their own battery and not connected to the boats other two main batteries, this solves any interference problems along with not stranding you at sea should the great sounds you've been listening too, then drain your main batteries and you cant start the boat.
Top reviews from the United States
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Reviewed in the United States on February 23, 2024
Size: 400W Compact 4-ChannelVerified Purchase
Small, powerful, sounds great, really impressed, and for the price, couldn't be happier. I hope it lasts, this is replacing a jl slash v2 I had for about 12 years, so....we'll see!
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Top reviews from other countries
derek stapleton
Really powerful full sound
Reviewed in Canada on December 10, 2020Size: 1000W 4-ChannelVerified Purchase
