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AMP: Technics SU-4600

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8trackman

Senior Member
Joined
Jun 24, 2010
Messages
212
4-Channel integrated amp built by Technics, top of the line for their stand alone Quad amps as far as I can tell

weighs a ton- and this is without the wood case

rare- the audioklassics site doesn't have one- just the lower model su 3400 (and they love obscure Technics gear) http://audioklassiks.de/wordpress/?cat=22

Rarity: Rare

Average Sale Price: $200.00

Front





Back





With RS-858DUS + remote



looks like you can hook up 16 speakers to this thing

p.s anyone know what wood-case this unit shares with other Technics units? or where to get one?

I wonder how much it cost back in the day?

all I need is an sh-3434 and my TOTL Quad Technics will be complete...well except for the receiver and the cd-4 unit, but they are easy to find in comparison
 
Last edited:

eyg2181

Senior Member
Joined
Mar 12, 2010
Messages
238
Location
Levittown, PA/Pottsville, PA
Nice looking amp you got there. The thing inlike about amps is the tuner input, because I could hook my XM tuner into in and not have to waste an aux input for it
 

8trackman

Senior Member
Joined
Jun 24, 2010
Messages
212
apparently I cant plug it in yet because it is "100 Volts AC" from Japan

sorry if this is another dumb question- I guess I retake my high-school science classes again- why cant you plug it into a North American plug I thought all appliances vary from 100- 350 volts" and can be used safely- so what is the problem with plugging this in?

it can also create the fake quad effect from stereo sources as well


p.s- you know who is back---- he has pictures of the sa-6700x...cant wait
 

Disclord

900 Club - QQ All-Star
Joined
May 19, 2005
Messages
944
Location
Plattsburg, MO (just outside Kansas City)
Just buy a power converter from Radio Shack - when I bought my 3D VHD VideoDisc player from Japan I got the power converter from Radio Shack for $14.95.

Some stuff will work, but Japan has both 50Hz and 60Hz power and one won't work with the other - some stuff is dual-standard, but why take the chance when the Radio Shack solution is so cheap?
 

8trackman

Senior Member
Joined
Jun 24, 2010
Messages
212
heres some nude pics for everyone-









it has a discrete and matrix switch? does this mean it can do CD-4?

thanks Colin
 

mtgc

600 Club - QQ All-Star
Joined
Mar 3, 2004
Messages
669
Location
Cedartown, Georgia
I believe the discrete/matrix switch is a source input selector, not a cd-4 decoder arrangement.

MTGC
Michael
 

Doug G.

1K Club - QQ Shooting Star
Joined
Jul 8, 2007
Messages
1,458
Location
Rochester, Minnesota
Any chance of getting shots of the right and left sides of the front so we can read the switch/control labels?

Thanks.

Doug
 

8trackman

Senior Member
Joined
Jun 24, 2010
Messages
212
yes Doug I will try get some pics tomorrow - or just type in what the buttons say, as my camera skills may not be good enough to get a legible picture of the front

does anyone know whether the wood-siding from a stereo Technics unit would fit onto this machine?

I am thinking of getting a su 7200 or su-7100 to get their wood case unit

this looks like an exact fit - http://cgi.ebay.com/Excellent-Vintage-Technics-SU-7200-Amplifier-Fine-Audio-/260761317276?pt=AU_Electronics_Audio_Amplifiers&hash=item3cb695ef9c#ht_3776wt_889

it seems the su 7200 could be had with two types of woodcasing - heres the other design http://audio-database.com/TechnicsPanasonic/amp/su-7200-e.html

the stereo wood casings are called the SH-770 while quad is SH-747- I don't think there can be much of a difference
 

8trackman

Senior Member
Joined
Jun 24, 2010
Messages
212
sorry it took so long to get pics, the digital camera is not recharging the way it should be- the screen keeps going black- so you have to re-plug it in constantly to recharge- but once its fully charged it works fine??

here are the best pictures I got, looks like the original shots I did capture the unit best


<a href="http://s9.photobucket.com/albums/a99/coldplays/?action=view&current=su4600006.jpg" target="_blank"><img src="http://i9.photobucket.com/albums/a99/coldplays/su4600006.jpg" border="0" alt="Photobucket"></a>













I am just unsure of what the "Low Filter" and "High Filter" switches do

I also don't know what system the "4 Channel Matrix Phase Shifter" supports? what does the 90 degree, 180 degree and 0 degree mean?

if you need more pics let me know the camera is know charged
 

mtgc

600 Club - QQ All-Star
Joined
Mar 3, 2004
Messages
669
Location
Cedartown, Georgia
The low and high filter switches are for switching in circuits that modify the high and low frequency responses of this unit. Normally when you engage the low filter, it filters, ie blocks, all low frequencies below a certain range, and the same for the high filter, when engaged it blocks all frequencies above a certain range. You will have to experiment to determine what frequencies are being blocked and if you like the arrangement or not.

The CD-4 phase shift actually modifies the sound field you get when you decode CD-4 sources. It is supposed to move the sound around in fractions of perceived location or at least this is my understanding.

Good luck,

MTGC
Michael
 

8trackman

Senior Member
Joined
Jun 24, 2010
Messages
212
another newb/stupid question- I just received my SB-X3's in the mail, meaning I have 4 identical speakers

anyways I am ready to set up the system

my question is do I need to worry about any magnetic material in the su 4600- is it sitting to close to the 8 track player thus creating the potential for erasing my tapes?

thanks Colin
 

mtgc

600 Club - QQ All-Star
Joined
Mar 3, 2004
Messages
669
Location
Cedartown, Georgia
My Akai 4 channel unit sits atop my amplifier and I have had no problems with tape erasure. I leave tapes on top of my amplifier all the time with no adverse reactions so far. Now, if you were to place the tapes on your speakers you might have a problem but even then I doubt it.

Hook up those speakers and tell all of us how this unit sounds!!!

MTGC
Michael
 

Quad Linda

Moderator
Staff member
Joined
Jun 3, 2011
Messages
8,225
Location
DROP YOUR WAD ON QUAD Chicago, Illinois
SH-3433 is the scope that mates with this amp. The SH-3434 is an SH-3433 with a preamp built in. That would be redundant, since the SU-4600 already has that built in. After looking at the rear shots, this amp will drive 2 sets of Quad speakers, 8 total, not 16. Is there a CD-4 demod built in? It appears not. Will it allow tape-to-tape dubbing in both directions?

Panasonic did a very nice job in designing this. 2 full Quad tape loops, bridged amp/preamp and two Quad auxiliaries. Sweet! The flexibilty of being able to use this as a preamp only or adding a wide variety of pieces is astounding. 2 Quad power amps or four mono blocks would be the rockinest Quad! Panasonic Quads have very clean lines. They didn't want to pay royalties for competing systems (SQ, QS), so you got a generic decoder with Panasonic and JVC Quad. Still, with many lousy on-board SQ decoders, adding an SQD-2020 (Tate was not out yet) and an SH-3433 may be the best bet. Add those and you've got a stellar performer! I used that logic by integrating my SH-3433, 4DD5 and SQD-2020 w/my B&K Reference 50 7.1 THX Ultra 2 multi-zone preamp through B&K amps. Quad on steroids.

Linda
 

8trackman

Senior Member
Joined
Jun 24, 2010
Messages
212
Hello Linda,

I love playing it+ remote is cool too, always use the quad setting, even for stereo recordings (just doesn't make sense not to use all the speakers)

thanks for all the information, I am not sure if it will allow tape dubbing in both directions (to be truthful I don't know what that means lol)

and yes there is no CD-4 demod built in

currently I just won the Technics sa 6700x that was on eBay- so I will have my oscilloscope fix + rudimentary decoders for SQ, and QS, it is my understanding that in "general" Technics/Panasonic always built decent CD-4 demodulators- so in theory I will be able to play all three formats

p.s having some problems with the eBayer, hopefully I get the reciever with little no hassle- https://www.quadraphonicquad.com/forums/showthread.php?15140-paypal-shipping-item-funds

Colin
 

Quad Linda

Moderator
Staff member
Joined
Jun 3, 2011
Messages
8,225
Location
DROP YOUR WAD ON QUAD Chicago, Illinois
Having 4 (or 6) speakers hooked up and only using two is blasphemous! Anyone who regularly does it should be banned from QQ! lol!! Other than testing or evaluation, there's no need to only play 2.

Tape dubbing in both directions means that without any re-connection, you could record from a Quad reel-to-reel to a Q8 recorder and vice versa. The owners' manual will explain that. Many Quad pieces will not allow tape-to-tape dubbing, or only allow it in one direction, unless you reconnect. Reconnection is a pain. It can also be of help if you have a decoder on one tape loop and a Quad tape deck on the other. Most decoders do offer their own tape loops. If not, there's always a Russound QT-1 Quad switcher. There is a QQ thread for that piece, which I've owned prior to it being sold to the public.

Since so many decoders do a poor job, especially SQ, you're better off adding a Tate or SQD-2020 anyway. Panasonic made a good demodulator. I own both a Panasonic and a JVC. Though most people are unaware, Panasonic has owned a controlling share of JVC for decades. For technologies like CD-4 and VHS, JVC invented them and did the bulk of Panasonic's research.

Sounds like you have some mighty nice stuff, Colin. Q remotes are cool. I've used the Marantz for nearly 40 years. The modern stuff is better for couch potatoes. Wireless and dozens of features.

Linda

Hello Linda,

I love playing it+ remote is cool too, always use the quad setting, even for stereo recordings (just doesn't make sense not to use all the speakers)

thanks for all the information, I am not sure if it will allow tape dubbing in both directions (to be truthful I don't know what that means lol)

and yes there is no CD-4 demod built in

currently I just won the Technics sa 6700x that was on eBay- so I will have my oscilloscope fix + rudimentary decoders for SQ, and QS, it is my understanding that in "general" Technics/Panasonic always built decent CD-4 demodulators- so in theory I will be able to play all three formats

p.s having some problems with the eBayer, hopefully I get the reciever with little no hassle- https://www.quadraphonicquad.com/forums/showthread.php?15140-paypal-shipping-item-funds

Colin
 

Tag

Member
Joined
May 21, 2018
Messages
29
Location
Minnesota
I got a lot of Technics 4 Channel, Quadafonic & 2 Channel Equipment. I am not going to unbox my
Components till I find a bigger Place & with Winter
Comming I won’t get nothing done till Spring living close to Fargo, North Dakota.

1. SA-8500X Reciever (2) Of
2. SL-1100A. Turntable (1) OF
3. EAH-420. Headphones (2) Of
4. RS-858DUS. 8-Track Player Recorder. (1) Of
5. RS-715US. Reel to Reel W/Technics Wired Remo
6. RS-676US Cassette Tape Deck. (3) OF With Wired Remote Control’s (3)
7. 3433. Scope (1) OF

Technics 4-Channel Cartridge’s. (3) OF

Monster Voltage Stabilizer Top Of Line
Monster Surge Protector. Top Of Line
(2002. Model’s. Brand New)

It has taken 6 year’s to find all of this.
 
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