Experience the sound of the Marantz 10B tuner...

Thanks for that! I enjoyed watching the display, not only show centering but also signal strength. That is a cool tuner!
 
Thank you for your post. I've never seen a 10b in the flesh, just pics, so I found it very interesting indeed. Didn't realize its selectivity was so good. My tuners are all digital now, and I miss the tuning knob. Great job, great post.
 
goldear said:
Very, very sweet unit! :thmbsp: I love my tube MR-67, and while it may be able to complete pretty well in terms of sonics, it can't even begin to compete with that kind of selectivity.

Great job on the video too. Usually those U-tube equipment videos truly suck. You made the extra-effort to provide a genuinely high quality sound-track with it. Bravo!
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Thanks goldear. I agree the MR67 is no slouch sonically. I owned one a while back. All original down to the McIntosh labeled tubes.

Happy New Year and let's keep those tubes glowing in 2009!
 
marantzbe said:
Very nice,
Thank you for sharing
I still hope to find a 10b

Tony
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Hi Tony,
You are welcome.
Don't despair. I finally came across this 10B locally. It was all original but dusty from years of sitting in someone's garage. Cleaned up beautifully!

So, you never know. A 10B might be right around the corner!
 
johnda said:
Thanks for that! I enjoyed watching the display, not only show centering but also signal strength. That is a cool tuner!
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Yeah, the scope is extremely versatile. It represents the passband of the IF filters, so in addition to signal strength and correct tuning, it also shows the presence of multipath and also if a station is overmodulating. So far, I've only seen this once with a low powered Mexican station across the border.

You can also use those little FM transmitters made for the iPod and overload them, and then just watch the scope.

The 10B was my dream tuner when I was a kid. Even in the late 80s they were pretty much unobtainum for me.
 
musichal said:
Thank you for your post. I've never seen a 10b in the flesh, just pics, so I found it very interesting indeed. Didn't realize its selectivity was so good. My tuners are all digital now, and I miss the tuning knob. Great job, great post.
Click to expand...

The 10B, because of its unique linear phase filters, has the ability to separate stations close together on the dial with minimal IM distortion. I've owned tuners with wide and narrow filters, and they provide good selectivity in the narrow position at the expense of fidelity. IM distortion rises sharply when using conventional ceramic narrow filters.

The beauty of the 10B is that it is able to give you low IM distortion, phase integrity and high selectivity at the same time.

Another treat of the Marantz is the quasi-vestigial sideband MPX decoder that maintains full separation even with marginal signals. With a conventional tuner you often experience flickering of the stereo indicator with such DX signals. And if you do have stable stereo, the image is often compressed and an auto blending circuit might come on, affecting separation.

With the 10B, you can manually apply hi-blend. But even without it, many fringe stations come in quite listenable.

The Marantz 10B was a tour-de-force in FM engineering back in the day. The development cost was $250,000 in early 1960s dollars. It pretty much put the company near bankruptcy. But then, the goal was to produce the finest tuner available. And to me, they succeded!

I'm glad you liked the video and this humble thread of mine. All the best in the New Year!
 
Marantz 10B tuner

Hey Croon, what type of antenna are you running the 10B on? Love the sound of the stations at the low end of the dial.
 
nitrous said:
Hey Croon, what type of antenna are you running the 10B on? Love the sound of the stations at the low end of the dial.
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Hi nitrous. Always good to hear from you!

I'm using an APS-9B mounted on the eave of my two story house. Approximately 35 feet above ground. Cable is Quad Shield Coax. Some line of sight reception is available. 89.9 KPBS and 101.5 KGB are good examples.

I have a Channel Master rotor and for this particular session, the antenna was oriented towards the northwest. Enabling reception of stations up north.

With the marine layer present during the spring/early summer months, it is possible to get consistent reception all the way up to Santa Barbara, due to tropospheric ducting. None of that right now, though...:no:

KJAZZ on 88.1 sounds quite good, despite the HD subcarrier. The 10B seems immune to IBOC artifacts. 88.3 is the local college Jazz station. They recently improved their signal. They were using a vertically polarized antenna that was optimized for a car's whip antenna but horrible for the typical horizontal Yagi.

KPBS on 89.5 plays classical during the night, and most of the time the sound quality is quite good. It does suffer from some MP3 like artifacts from time to time. I believe this is due to the source material. I hope they are not using any MP3s! :thumbsdn:
 
Sold! I'll take it! ;)

Very nice tuner, I myself hope to snatch up one of these one day, but I'm afraid that day might never come. Very nice video, very enjoyable.


Philip.
 
gad, crooner, i never listen to the radio 'cept in the car, but that is surely some lovely stuff you have there.
 
shrinkboy said:
gad, crooner, i never listen to the radio 'cept in the car, but that is surely some lovely stuff you have there.
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Thanks shrinkboy. I must confess I don't listen to FM at home a whole lot, except during the summer DX season and two or three times a month when I fire up the 10B.

Happy New Year!
 
crooner said:
I'm using an APS-9B mounted on the eave of my two story house. Approximately 35 feet above ground. Cable is Quad Shield Coax. 89.9 KPBS and 101.5 KGB are good examples.
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I use the same antenna also, with very good results. But I didn't hook up a rotor to it. With the sound you have available to you with the 10B, you should definitely listen to FM broadcasts more often!
 
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