Nakamichi NGTA602

2-channel car amplifier — 60 watts RMS x 2

  • Nakamichi NGTA602


Crutchfield OMC logo
We don't check this item for fit or compatibility.

Our take on the Nakamichi NGTA602

by Buck Pomerantz

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Give your music strength

Nakamichi's NTGA602 2-channel amplifier puts out 60 watts RMS per channel — plenty enough to power a pair of speakers or a set of components. You can also drive a subwoofer with 180 watts RMS in 1-channel mode. This amp features Nakamichi's patented Harmonic Time Alignment technology, which reduces distortion throughout the whole audio spectrum resulting in powerful, clear musical reproduction.

Convenient features

You'll find all the connections and adjustment controls recessed on one side of the amp, for a neat installation and easy access for adjustments. Variable high- and low-pass filters let you tune the signal so your system can sound its best. A switchable bass boost lets you bump up your bass, whether you're running a subwoofer or not.

See more info on this item


  • 2-channel car amplifier
  • 60 watts RMS x 2 at 4 ohms (90 watts RMS x 2 at 2 ohms)
  • 180 watts RMS x 1 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • Class AB amp technology
  • variable high- and low-pass filter (50-200 Hz, 12 dB/octave)
  • switchable bass boost (0, 6 dB at 45 Hz)
  • frequency response: 10-50,000 Hz
  • preamp and speaker-level inputs
  • fuse rating: 20A x 1
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 9-1/2"W x 2-3/16"H x 8-3/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
Preliminary info from the manufacturer
Features and Specs
RMS Power Output (Watts x Channels) 60 x 2
Peak Power Output (Watts x Channels) ---
Power at 2 Ohms (Watts x Channels) 90 x 2
Bridged Power (Watts x Channels) 180 x 1
Minimum Impedance Bridged 4
Minimum Impedance Unbridged 2
Best Frequency Response 10-50000 Hz
THD at Rated RMS Power 1%
Signal to Noise Ratio 90 dB
Input Voltage 14.4v
Amplifier Class AB
Low-Pass Crossover Frequency 50-200 Hz
Low-Pass Slope (dB/octave) 12 dB/octave
High-Pass Crossover Frequency 50-200 Hz
High-Pass Slope (dB/octave) 12 dB/octave
Bass Boost 0, +6 dB
Bass Boost Frequency 45 Hz
Fan Cooled No
Fuse Rating 25
Speaker Level Inputs Harness
Preamp Outputs No
Width (inches) ---
Height (inches) ---
Depth (inches) ---
Parts Warranty 1 Year
Labor Warranty 1 Year
Product Research

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.



Power Output: The Nakamichi NGTA602 Class AB 4-channel amplifier delivers the following power output (RMS Power Output @ 1% THD+N, 14.4 VDC):

  • 60 watts x 2 @ 4 ohms
  • 90 watts x 2 @ 2 ohms
  • 180 watts x 1 bridged into 4 ohms

Protection Circuitry: The amplifier features protection circuitry for thermal overload and short circuits. The LED on the side of the amp glows red if the amp goes into protection mode.

Design: The NGTA-series amplifiers feature all of the connections and controls on one side. This gives the amp a clean look, and makes it easier to access the controls.


Gain Controls: The NGTA602's rotary gain controls let you match the amp's input sensitivity to the output of the source unit. The low-level input sensitivity range of the amplifier is 200mV to 5V, while the high-level sensitivity is 400mV to 10V. A small screwdriver (not included) is required to set the gain.

Crossover: The amp features a 12 dB/octave crossover that can be configured as High-Pass, Low-Pass, or set to Off for full range operation. The crossover has a continuously variable cutoff frequency between 50Hz and 200Hz. You'll need a small screwdriver to adjust the crossover frequency.

Bass Boost (Q-Tune): The NGTA602 has a selectable +6dB bass boost, centered at 45Hz. This is useful when bridging the amplifier to power a subwoofer.


Terminals: The Nakamichi NGTA602 uses gold-plated set-screw terminals for the +12V power, ground, turn-on (remote) lead, and speaker outputs. The set-screws can be tightened/loosened with the supplied 2mm and 3mm Allen wrenches.

Power/Ground: The +12V Power and Ground terminals will accept bare wire up to 8 AWG. It is recommended that you use an 8 AWG power wire to the battery, with an in-line 50A fuse installed no more than 18" from the battery terminal. An 8 AWG ground wire (minimum) should be used, and attached to a metal area close to the amplifier.

Remote Turn-On: The Remote screw terminal will accept bare wire up to 8 AWG. Typically, an 18 AWG turn-on lead is included in an amplifier wiring kit.

Speaker-Level Inputs: The amp includes a Speaker Level Input harness for connecting the amp to a factory radio or aftermarket head unit without preamp outputs. You should splice left and right speaker wires from the head unit to the harness and plug the harness into the amp.

Line-Level Inputs: The amplifier is equipped with a pair of gold-plated RCA inputs for connecting stereo RCA patch cables from the head unit to the amp. If you are bridging the amplifier and have only one input, a "Y"-adapter will be needed to connect the left and right RCA inputs.

Speaker Outputs: The amp features set-screw terminals for connecting two speakers in stereo or one speaker in bridged mono. In bridged mode, you should connect the Left + and the Right - terminals. The terminals will accept bare wire up to 10 AWG. It is recommended that a minimum of 12 AWG speaker wire be used.

Be the first to review this product
Great Gear Giveaway rewards card

Submit a review and then enter to win a $500 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
Rate the following specific attributes
 Sound Quality
 Ease of Use
 "Coolness Factor"
 Build Quality
1500 characters left
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Add accessories for the Nakamichi NGTA602

You'll need an amp wiring kit to install your new amplifier, as wiring is not included. See all categories & accessories

T-Spec 8PK Installation Kit 8-gauge amplifier wiring kit — includes speaker wire
6 people say
Your Price: $59.99
Add to Cart
Rockford Fosgate RFK8i 8-gauge amplifier power and signal wiring kit
30 people say
Your Price: $74.99
Add to Cart
Kicker PK8 8-gauge amplifier power wiring kit
1 person says
Your Price: $79.99
Add to Cart
Rockford Fosgate RFK8 8-gauge amplifier power wiring kit
6 people say
Your Price: $64.99
Add to Cart
T-Spec 16-gauge Speaker Wire Black/white jacket — priced per foot
13 people say
Your Price: $0.69
Add to Cart
T-Spec 12-gauge Speaker Wire Black/white jacket — priced per foot
29 people say
Your Price: $1.99
Add to Cart
Stinger PRO Series Speaker Wire Priced per foot (16 Gauge)
50 people say
Your Price: $0.39
Add to Cart
T-Spec 2-Channel RCA Patch Cables Available in 7 different lengths (17-foot)
25 people say
Your Price: $19.99
Add to Cart
54 people say
Your Price: $7.99
Add to Cart
T-Spec Capacitor 1.5-farad capacitor with red LCD meter
11 people say
Your Price: $79.99
Add to Cart
Bojo Trim Panel Tools Set of 6 pry tools — helps remove interior and exterior trim and door panels
2 people say
Your Price: $29.99
Add to Cart
Bojo Trim Panel Tools Set of 6 pry tools — helps remove interior and exterior trim and door panels
52 people say
Your Price: $24.99
Add to Cart
Pro.Fit Wire Worm Installation tool helps route wiring through tight spaces
31 people say
Your Price: $12.99
Add to Cart
InstallCard: Amp or Equalizer Prepaid professional amplifier or EQ installation
17 people say
Your Price: $79.99
Add to Cart

Why choose SquareTrade?

The #1-Rated Protection Plan

Thousands of people have reviewed SquareTrade Protection Plans — and made us #1.

5-Day Service Guarantee & Free Shipping

We'll repair or replace your item in five business days or less after we've received it, or your plan is free. And, as always, we pay for all shipping.

Protection from Normal, Everyday Use

Repairing your average mechanical or electrical failure can cost as much as buying a new device. With SquareTrade, you're covered — including parts and labor.

3 Year Protection Plan
3 Year Protection Plan
Your Price: $14.99
Add to Cart

For a more in-depth review and enhanced detailed information on the Nakamichi NGTA602, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_291NGTA602/Nakamichi-NGTA602.html ).