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Final disposition of my utah project(for now)

75.111.54.216
Posted on March 19, 2015 at 08:19:01
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004



My Sony Bravia has a line out for audio, so this makes a nice home for my 3wpch magnavox el84 amp and the utah 2a's. Vocals are very nice which is always helpful with TV. Wife is happy as the prior speakers there had a no grills and mismatched woofers! Sorry about the grainy picture..this ipad camera is handy but no flash!

"When the demon is at your door, in the mornin' it won't be there no more"
Steely Dan

 

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RE: Final disposition of my utah project(for now), posted on March 19, 2015 at 09:16:24
6bq5
Audiophile

Posts: 4390
Location: SF Bay
Joined: August 16, 2001
 Looks Great - compact and clean!
well done
Happy Listening

 

RE: Final disposition of my utah project(for now), posted on March 19, 2015 at 09:19:09
DavidLD
Audiophile

Posts: 4884
Joined: May 29, 2002
 Those look great! any obious holes in the frequency response curve? Utah speakers usually have a bit of mid-bass warmth compared with, say Advent or AR, which is sometimes nice. The others tend to be a bit dry.

 

RE: Final disposition of my utah project(for now), posted on March 19, 2015 at 22:45:10
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 Once I corrected the polarity issue with the tweeter replacement, they sounded fine. Obviously they have no low bass, but for TV vocals they are fine. The sony has terrible audio from its own speakers, but the line out signal seems good. Voices are more natural and less boomy now. Also, vary pleasant with the cable music stations. This room has pretty bad acoustics, so we watch movies and have the fancier 5.1 system in the living room.
"When the demon is at your door, in the mornin' it won't be there no more"
Steely Dan

 

RE: Final disposition of my utah project(for now), posted on March 20, 2015 at 04:49:04
DavidLD
Audiophile

Posts: 4884
Joined: May 29, 2002
 You could add one of the readily available 10 inch subs, and have a great 3-piece setup, far better than the modern small-woofer speakers commonly used nowadays. Or, you could DIY a small sub.

 

RE: Final disposition of my utah project(for now), posted on March 20, 2015 at 08:04:49
Crazy Dave
Audiophile

Posts: 14371
Location: East Coast
Joined: October 4, 2001
 I was using an M&K that I bought from a thrift store for around $30. It broke. I am planning to try and fix it, but in the meantime, I found a 10" down-firing sub, which looked very good but I can't remember the name. I looked it up. It used to be sold by Audio Advisor and had decent specks. It sounds great with my Spendors. My point is that with the popularity of subwoofers in home theater system, it is one of the few useful things you can find easily at the thrift stores. I see them all the time. I would have a room full of them if I bought every good one that I saw.

Alternatively, Part Express has some very cool parts to put together a subwoofer system. They have them in all price ranges.

Dave

 

Mods to Magnavox, posted on March 20, 2015 at 08:12:23
Charlie8521
Audiophile

Posts: 914
Location: South East Michigan
Joined: October 2, 2004
 I've got the same little Mag amp. Any recommended changes to the circuit you can suggest? I've recapped it and changed out the electrolytics. Use it for my computer desk top system. Sounds great.

 

RE: Mods to Magnavox, posted on March 20, 2015 at 08:20:50
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 I have heard that they are very fun to tube roll with as the effects are quite noticeable between different tube models. I used mine at the computer for awhile as well and loved the near field effect!
"When the demon is at your door, in the mornin' it won't be there no more"
Steely Dan

 

RE: Final disposition of my utah project(for now), posted on March 20, 2015 at 08:27:50
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 Yup, that.s a thought I had as well.
"When the demon is at your door, in the mornin' it won't be there no more"
Steely Dan

 

RE: Final disposition of my utah project(for now), posted on March 20, 2015 at 08:39:47
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 The gain from the Sony line out circuit is strong. Should I run a direct feed to a powered sub from the line out and bypass the magnavox? The magnavox only has L and R, of course. I have a separate in line volume pot for the magnavox as the sony seems not to be able to control the line out volume.
"When the demon is at your door, in the mornin' it won't be there no more"
Steely Dan

 

RE: Final disposition of my utah project(for now), posted on March 23, 2015 at 10:25:54
Crazy Dave
Audiophile

Posts: 14371
Location: East Coast
Joined: October 4, 2001
 I run my subwoofer from the pre-out of my preamp. I prefer not to put anything between the main amp and speakers. I run the speakers full range and roll in the sub. if you plan to cross high, you might get better integration running from the power amp speaker outs. So it depends on you implementation.

Dave

 

RE: Final disposition of my utah project(for now), posted on March 30, 2015 at 08:11:52
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 So Dave,
If I understand, I can split my RCA line out signal from the tv and feed the sub and the magnavox tube amp/ front speakers at the same time. then I set the sub hz level and volume. However, I have to adjust sub volume every time I adjust front speaker volume?
Thanks
"When the demon is at your door, in the mornin' it won't be there no more"
Steely Dan

 

RE: Final disposition of my utah project(for now), posted on March 30, 2015 at 10:39:32
Crazy Dave
Audiophile

Posts: 14371
Location: East Coast
Joined: October 4, 2001
 Does you TV control the volume? If you split the signal out to the sub before the volume control the volume of the subwoofer will not go up and down with you main speakers.

Dave

 

RE: Final disposition of my utah project(for now), posted on March 30, 2015 at 12:04:05
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 No, tv does not control audio out volume. However, Could i put the splitter after the inline volume contol?
"When the demon is at your door, in the mornin' it won't be there no more"
Steely Dan

 

Done, works nicely, posted on March 31, 2015 at 07:14:30
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 I did as you suggested and split the signal, after my in line volume pot. Sub is rolled in at about 80hz, still playing with that...adds a lot to TV shows.
"When the demon is at your door, in the mornin' it won't be there no more"
Steely Dan

 

RE: Done, works nicely, posted on March 31, 2015 at 08:14:29
Crazy Dave
Audiophile

Posts: 14371
Location: East Coast
Joined: October 4, 2001
 Looks like you've got it!

Dave

 

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