new member ,hi everyone

[wolfshead]

Hi everyone , I am new just joined. My audio system consist of :
Two JBL Hartsfield's using the 175 DLH's as tweeters , they are the older Hartsfield's with the woofers facing down.

My amps are : a Marantz 7C , Marantz 10B , Mac 275 , Revox A77 ,
Transcripter turntable ,SME tonearm , Shure cartridge.

My second system : AR3a's marantz 3800 , marantz 150 , Dynaco 400 ,
Thorens 125 turntable , SME tonearm , Shure cartridge.

Third system connected to a TV is a Marantz 3800 , Marantz 15 , AR2a's.

Connected to these system are cassettes , DVD recorders and CD recorders , XM receiver.
What do you all think ?

[Robh3606]

Hello and Welcome

Hey come on now don't be shy. How about posting some pictures? Sounds like some nice set-ups to me.

Transcripter turntable

It that a Garrard 301?? I have one that was my dads.

Rob

[BMWCCA]

Hi everyone , I am new just joined. My audio system consist of :
Two JBL Hartsfield's using the 175 DLH's as tweeters , they are the older Hartsfield's with the woofers facing down.

I think you're a lucky guy! Pictures of the JBLs, please.

I'm originally from St. Louis, and so are my vintage 030 JBLs. Do you know where yours came from originally? Any history?

Oh yeah, welcome aboard!

[wolfshead]

Hello and Welcome

Hey come on now don't be shy. How about posting some pictures? Sounds like some nice set-ups to me.



It that a Garrard 301?? I have one that was my dads.

Rob

The Transcripter Hydraulic was featured in the movie A Clockwork Orange, it is aso displayed in the American Museum Of Modern Art New York and several other museums.

[wolfshead]

I think you're a lucky guy! Pictures of the JBLs, please.

I'm originally from St. Louis, and so are my vintage 030 JBLs. Do you know where yours came from originally? Any history?

Oh yeah, welcome aboard!

I bought my Harsfields from the supplier of Maytag products in 1967.
One was blond and the other mahogany. I had them refinished in walnut.
I than added the 075 tweeters , which I replaced later with 175DLH
drivers and lens.
I will sumit pictures as soon as I learn how.

Prior to owning the Hartsfield I had JBL C34's with D130 , 175 , and 075 speaker systems.
My systems were purchased from Napper radio and Aeolian in St.Louis.

[Maron Horonzakz]

Aeolian,,I remember the upstairs audio room and the mezzinine record store,,the sales lady was HOT... Napper radio also was one of my hang outs,, New both father & son.

[Mr. Widget]

Come on, what have you got against high frequencies?

Welcome aboard, sounds like some cool vintage gear... I love this stuff too.

Please do take a few pics and share.


Widget

[wolfshead]

Come on, what have you got against high frequencies?

Welcome aboard, sounds like some cool vintage gear... I love this stuff too.

Please do take a few pics and share.


Widget

I will send pictures as soon as I can . The purpose of removing the 075's
and replacing them with 175DLH's was brightness , the 075 on top of the 375 was just to bright.

JBL 175DLH is much better the acoustic lens filters out some of the brillance , also it is less directional.
As you know the Hartsfield was designed without a tweeter.
In the Paragons the 075 is pointed toward the curved board , limiting it's
brilliance as well as helping to spread it's direction more.

I do enjoy highs.

[BMWCCA]

JBL 175DLH is much better the acoustic lens filters out some of the brillance , also it is less directional.

In systems I've seen with a HF driver like the 175DLH, adding the UHF 075 was the next step and helped extend the range of the HF driver and could be attenuated as needed with the N7000. Are you using the 175 "on-top" of the 375, crossing it somewhere above 1200Hz? I don't know much but it's hard for me to imagine the 175 would improve anything the 375 was already doing. Pardon my stupidity, but I don't get it. :dont-know


Yeah, I know there are those who just hate the 075, but even used the way they are in the 030 (2400Hz on up), I don't dislike them. They seem easily tamed.

[Mr. Widget]

I do enjoy highs.

All puns aside, the 175DLH isn't really going to give you appreciable output above about 12KHz. I can appreciate not wanting to be in the path of the 075, but looking at it from a purely objective standpoint, your solution was to roll off the highs rather than tame them.

My original comment was meant to be rather tongue in cheek. I also mentioned the ARs because they too are extremely limited up top. I gather you have enjoyed both of these speakers for a very long time and that is exactly the purpose of a hi-fi system. Every room and every listener are different, finding a system that pleases us in our own homes is success.


Widget

[wolfshead]

All puns aside, the 175DLH isn't really going to give you appreciable output above about 12KHz. I can appreciate not wanting to be in the path of the 075, but looking at it from a purely objective standpoint, your solution was to roll off the highs rather than tame them.

My original comment was meant to be rather tongue in cheek. I also mentioned the ARs because they too are extremely limited up top. I gather you have enjoyed both of these speakers for a very long time and that is exactly the purpose of a hi-fi system. Every room and every listener are different, finding a system that pleases us in our own homes is success.


Widget

You are correct when the 175DLH uses a N1200 crossover , crossover point is 1200 there is rool off at 12KHz.
The outcome is very different when the N7000 crossover is used. The 175DLH is now crossinig over at 7000 KHz. I use the 175DLH as a tweeter
not as a mid range driver tweeter. The high end than is increased to 18,000 HKz ! The acoustic lens does an excellent job of distributing the highs over a 90 dehree amngle.


As for as the AR3a's you again are correct there is a limited top end , the so-called midwestern or eastern sound. The bass is excellent.

[BMWCCA]

I sense a semantic failure in this thread.

Why don't you tell us what you've done, what you're using, and include some pictures.

Bye.

[SMKSoundPro]

I am very interested in this thread. Please help us understand what you're doing with some pictures. There are many excellant minds here, and a few goofy ones, that can answer just about any question regarding JBL and Altec products and their proper setup.

Welcome to the forum!

Scotty.

[wolfshead]

My daughter will arrive in two weeks , she will help me set up sending
pictures. I am still learning about computers.
I enjoy your forum. I purchased my first audio component system in 1958.
Stereo was just beginning. Many of the audio companies that existed than are no longer in existance.

I met several of the pioneers of audio in St.Louis and Chicago at audio
shows , Avery Fisher , Saul Marantz , Ruddy Bozak , George Augspurger,
and many national sales rep from most of the audio manufactures.

It was Thomas Campbell of JBL whom I met at such a show who suggested using the JBL 175DLH as a tweeter.Crossing it over at 7000cps.
The 275 driver was a better choice with an acoustical lens.
Lansing at that time was not satisfied with the 075.
For cost sake they did add it to the Paragon and the Hartsfields to extend the highs.

[Mr. Widget]

My daughter will arrive in two weeks , she will help me set up sending pictures.

Cool!

I met several of the pioneers of audio in St.Louis and Chicago at audio
shows , Avery Fisher , Saul Marantz , Ruddy Bozak , George Augspurger,
and many national sales rep from most of the audio manufactures.

Very Cool!!!

It was Thomas Campbell of JBL whom I met at such a show who suggested using the JBL 175DLH as a tweeter.Crossing it over at 7000cps. The 275 driver was a better choice with an acoustical lens. Lansing at that time was not satisfied with the 075.

That is very interesting. JBL's own reccomendations with their drivers have certainly evolved over the years.

The 275 driver was a very short lived driver as it was replaced by the LE85 which was very similar but had an impedance control ring added to help extend the highs.


Widget