Nakamichi MB75

Price & Contact: Call for pricing;
310-538-8150; www.nakamichi.com
Max output level: 1.9 V @ 2.8% THD+N @ 1 kHz
Max undistorted output: .9 V @ .9% THD+N @ 1kHz
Relative loudness: –18.3 dBu
Dynamic range: –90 dB
THD+N @ full output: 2.8%
Output impedance: 953 ohms
L-R channel error: .03 dB
Frequency response: +.3 dB, –.5 dB

All measurements @ 4 ohms
Max output level: 15.4 W x 4 @ 37.8% THD+N
Max undistorted output: 9.6 W x 4 @ 1% THD+N
Signal to Noise: –86 dB
THD+N @ full output: 37.8%
L-R channel error: .1 dB
Frequency response (@ 1 watt): +.25 dB, –2 dB

		Nakamichi MB75 www.nakamichi.com
		Nakamichi offers the ultimate in convenience with this handy 6-disc in-dash head unit/changer.		MB75 Specs Price & Contact: Call for pricing; 310-538-8150; www.nakamichi.com Max output level: 1.9 V @ 2.8% THD+N @ 1 kHz Max undistorted output: .9 V @ .9% THD+N @ 1kHz Relative loudness: –18.3 dBu Dynamic range: –90 dB THD+N @ full output: 2.8% Output impedance: 953 ohms L-R channel error: .03 dB Frequency response: +.3 dB, –.5 dB Internal Amps All measurements @ 4 ohms Max output level: 15.4 W x 4 @ 37.8% THD+N Max undistorted output: 9.6 W x 4 @ 1% THD+N Signal to Noise: –86 dB THD+N @ full output: 37.8% L-R channel error: .1 dB Frequency response (@ 1 watt): +.25 dB, –2 dB
		by Brian Smith

		The MB75 is a single-DIN head unit featuring all the standard tuner/CD functions plus remote control and an amp block that can be mounted either on the back of the unit or in a remote location. The amp block is rated at 40 watts x 4 and includes provisions for preamp outputs. The MB75 also includes CD changer controls and holds up to six CDs — that’s right, six CDs in a single-DIN unit. Somebody at Nakamichi obviously got really tired of running to the trunk on rainy days to change CDs (if a double-DIN opening is available, you could have up to 12 CDs at your fingertips by adding Nakamichi’s MB70 CD changer). Admittedly, there was much skepticism around the shop as to the ability of this thing to actually handle six CDs, but the MB75 gobbled them up and even seemed to access them a bit faster than many of the changers that we regularly test. User Evaluation The MB75’s front panel interface is well laid out. It has more than 20 buttons on the detachable face, some which also offer multiple functions. The well-designed remote supplied with this unit will control most of the MB75’s functions as well. Performance While the MB-75 is up to par in terms of its CD section (and is actually above par in its ability to handle up to six CDs), the only weak link in this system seems to be the MB75’s output section. While the pre-amp section is certainly capable of delivering flat response and reasonable signal-to-noise specs, it’s somewhat hindered by a maximum undistorted output level of .9 volts with an output impedance of nearly 1 kohm. (However, Nakamichi does offer the MB-100 which boasts both a higher output voltage and lower output impedance with an off-board preamp section for those discriminating listeners.) The amp section of the MB75 didn’t quite make the advertised 40 watts x 4, but nobody’s head unit ever does. The actual output power of the MB75 is adequate for the vast majority of coaxial or component speaker systems. The benefit of Nakamichi’s design is that the amplifier section can be remotely mounted or completely removed if not needed.