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Do Amps matter or is voltage more important?

I've experienced open circuit conditions in loudspeakers while playing both Montrose and Judas Priest records.
:BangHead:
Considering the source.....entirely possible. Perhaps the speakers were mismatched to the amplifiers output impedance......the lower the impedance, the more AC current (from the source...records or tape) can flow, especially solid state amplifiers which can approach zero hz (DC) output........
BOB RENTON
 
Note that a loudspeaker is not a resistor... :rolleyes:
It is a inductive, reactive load so the Ohm's law has little merit here except for bench testing not actual system operation...

Just my $0.02... :thumbsup:
But it must be considered....over the entire spectrum because of the frequency variation must be accomodated. I mentioned Ohm's Law but discussing the AC equivalent (the "J" operator or imaginary function as I learned it) would likely be too much for 95% of the audience.....as with music, the frequency is constantly changing influenced buy the inductive and reactance factors.......just a thought....how about change for $0.05, because the $0.01 will be eliminated......????.....
BOB RENTON
 
But it must be considered....over the entire spectrum because of the frequency variation must be accomodated. I mentioned Ohm's Law but discussing the AC equivalent (the "J" operator or imaginary function as I learned it) would likely be too much for 95% of the audience.....as with music, the frequency is constantly changing influenced buy the inductive and reactance factors.......just a thought....how about change for $0.05, because the $0.01 will be eliminated......????.....
BOB RENTON
Keep in mind for loudspeakers... :rolleyes:
Especially woofers for low bass frequencies as the loudspeaker impedance decreases more current is required....
Thats why many audio systems including home and car don't handle low bass frequencies well..

One of the few audio brands that does well into lower impedances is Marantz as
they guarantee more power output into 4 Ohms.. If the audio system is incapable of delivering clean,
undistorted power @ low bass frequencies, it will not sound good..

Just my $0.02... :thumbsup:
 
SECOND LESSON......when to use the over-hand vs under-hand method albeit with left hand or right hand.....depends on one's preference......as applicable.......
BOB RENTON
Uhhh, huh huh. Should this be moved to the blue forum?
 
SECOND LESSON......when to use the over-hand vs under-hand method albeit with left hand or right hand.....depends on one's preference......as applicable.......
BOB RENTON
Please keep your ****** desires to yourself please......
 
Keep in mind for loudspeakers... :rolleyes:
Especially woofers for low bass frequencies as the loudspeaker impedance decreases more current is required....
Thats why many audio systems including home and car don't handle low bass frequencies well..

One of the few audio brands that does well into lower impedances is Marantz as
they guarantee more power output into 4 Ohms.. If the audio system is incapable of delivering clean,
undistorted power @ low bass frequencies, it will not sound good..

Just my $0.02... :thumbsup:
Marantz made excellent equipment....I wish I had their amps plus they made an FM receiver with a built in miniature oscilloscope Personally, I have Dynaco.....tube type....PAX3A preamp feeding each channel seperately into two (2) independent (one for each channel) Monoblock amplifier with Genelex 6550 / KT-88 output tubes for each channel. Yes.....capable of 18 hz - 20,000 hz at full power, 60+watts into an 4 ohm load (speaker)....a low efficiency speaker, the lower the better....like Acoustic Research AR-3A's....with less that 2% total harmonic distortion....their secrete was the design of the output transformers, producing sound that you cannot hear but feel at the low end frequencies up to +20,000 hz, which you also can't hear but feel their presence. The AR-3A's can faithfully represent this spectrum range. Sad, most of the old high end audio stuff is gone.....but it can be found on ebay at exorbitant prices. I'll just keep my old Dynaco stuff. Tubes are being repopped.....usually by Russia or Chekoslovacia..........just my opinion........
BOB RENTON
 
Marantz made excellent equipment....I wish I had their amps plus they made an FM receiver with a built in miniature oscilloscope Personally, I have Dynaco.....tube type....PAX3A preamp feeding each channel seperately into two (2) independent (one for each channel) Monoblock amplifier with Genelex 6550 / KT-88 output tubes for each channel. Yes.....capable of 18 hz - 20,000 hz at full power, 60+watts into an 4 ohm load (speaker)....a low efficiency speaker, the lower the better....like Acoustic Research AR-3A's....with less that 2% total harmonic distortion....their secrete was the design of the output transformers, producing sound that you cannot hear but feel at the low end frequencies up to +20,000 hz, which you also can't hear but feel their presence. The AR-3A's can faithfully represent this spectrum range. Sad, most of the old high end audio stuff is gone.....but it can be found on ebay at exorbitant prices. I'll just keep my old Dynaco stuff. Tubes are being repopped.....usually by Russia or Chekoslovacia..........just my opinion........
BOB RENTON
Actually Marantz made a number of products(tuners and receivers) with a built-in scope. The scope provided vast info for FM stereo reception including signal strength, multipath and center channel tuning, all simultaneously. 1 standout product was their 2600 stereo receiver, had a 3" scope, 5 gang quartz-locked FM analog tuner, patented servo-controlled tunnel output stage, rated @ 400Wx2 into 4 Ohms @0.05%, 20Hz-20kHz. Its power output was actually certified by the Federal Trade Commission, as back then there were alot of BS claims about watts. Originally sold for $1695 in 77/78, now they sell for up to $25K if in good working and ID condition. The 2600s' amplifier circuit and tunnel was used in the Marantz 510 pro-audio amplifers, used by many of the top-rock groups including the Eagles, Rhonstadt, Jackson Browne, CYN for their touring concert systems. Note the Eagle's system used 75 of the 510 amplifiers. The challenge of the AR3As was their low sensitivity and 4 Ohm impedance plus being a sealed enclosure, also the dome tweeter was on the bright side but back in the 70s' considered 1 of the top loudspeakers..

Just my $0.02... :thumbsup:
 
I had their Model 18 receiver, it had the built-in 'scope too. I think it was the first receiver for Marantz.
1747262700105.png
 
Actually Marantz made a number of products(tuners and receivers) with a built-in scope. The scope provided vast info for FM stereo reception including signal strength, multipath and center channel tuning, all simultaneously. 1 standout product was their 2600 stereo receiver, had a 3" scope, 5 gang quartz-locked FM analog tuner, patented servo-controlled tunnel output stage, rated @ 400Wx2 into 4 Ohms @0.05%, 20Hz-20kHz. Its power output was actually certified by the Federal Trade Commission, as back then there were alot of BS claims about watts. Originally sold for $1695 in 77/78, now they sell for up to $25K if in good working and ID condition. The 2600s' amplifier circuit and tunnel was used in the Marantz 510 pro-audio amplifers, used by many of the top-rock groups including the Eagles, Rhonstadt, Jackson Browne, CYN for their touring concert systems. Note the Eagle's system used 75 of the 510 amplifiers. The challenge of the AR3As was their low sensitivity and 4 Ohm impedance plus being a sealed enclosure, also the dome tweeter was on the bright side but back in the 70s' considered 1 of the top loudspeakers..

Just my $0.02... :thumbsup:
As I said b4.....Marantz made some great stuff.....top of the line...in its era. I believe, but not 100% sure, that on Michael Connelly's authored, TV series, BOSCH /Titus Welliver,....who was a jazz afishiniato had MARANTZ tube amps (don't know model #)......I'll just keep and continue to use my AR-3A's.......most of my stuff should be recapped.....a little humm in the sound......enjoy your stuff........
BOB RENTON
 
I had their Model 18 receiver, it had the built-in 'scope too. I think it was the first receiver for Marantz.
View attachment 1852233
Correct, the model 18 was their 1st receiver with scope, the 1st product with a scope was the model 10B tuner. The model 18 was built in Woodside NY, and later replaced by the model 19 built in Sun Valley CA by SuperScope. Later model 19 production was shifted from California to Japan. Note that SuperScope was the California company that 1st introduced Sony to the North American market and built that business to $400 million selling reel-to-reel tape decks, cassette decks, AM/FM portables, car audio head units.

Just my $0.02... :thumbsup:
 
As I said b4.....Marantz made some great stuff.....top of the line...in its era. I believe, but not 100% sure, that on Michael Connelly's authored, TV series, BOSCH /Titus Welliver,....who was a jazz afishiniato had MARANTZ tube amps (don't know model #)......I'll just keep and continue to use my AR-3A's.......most of my stuff should be recapped.....a little humm in the sound......enjoy your stuff........
BOB RENTON
Marantz made a few early tube amplifiers, the Model 9 was the most popular it was a mono amplifier and today if in good condition can sell for up to $10K. Note that 1 strength Marantz had over the Japanese audio competitors, their R&D team in California would design the amplifier circuits and then send the USA sourced output devices and schematic to Japan to complete their receivers and component amplifiers. Thats why even today Marantz receivers with solid-state amplifier circuitry are considered the best sounding... But this is starting to change to Class D amplifiers which are high powered, lower cost, more compact, run cool and very efficient for power efficiency. Note that the vintage audio component biz is much like our vintage Mopar stuff..

Just my $0.02... :thumbsup:
 
Please keep your ****** desires to yourself please......
It seems like I've been accused of a capital crime. My comments had NOTHING TO DO WITH ANY THING WITH sexual inference expressed or implied. I was noting that golf clubs, or tennis rackets or pickel ball paddles or fishing type spinning reels or even bait casting reels or pool cues or even baseball bats...the methodology used is operator / user skill and ability level dependent. Any inferencess to anything else is coincidencal. I have enough knowledge of the English language to be able to express myself with a little adroitness and perhaps a little "tongue in cheek" humor type verbiage.....on any reader's language level. There are countless ways to express one's thoughts other than thru profanity or "gutter type language"........just my thoughts and opinions........
BOB RENTON
 
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