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Sold: Harman Kardon 730


Rivernuggets

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Rivernuggets-

Great. Kernel will be pleased.

Now that your 730 is sold, anyone who missed out on yours and is able to wait weeks, if not months, for mine to be refurbished, should contact me. I have two 730s and one 630 being expertly reconditioned. At least two will be available. You can't rush genius. If I see one of them this year I'll be pleasantly surprised. Better right than rapid.

Edited by DizRotus
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I'm also curious about your impressions.   The 430 is rated @ 25 watts RMS/channel, whereas the 730 is rated @ 40 watts RMS/channel.  With efficient Klipsch speakers that power difference is probably insignificant.

 

730 SPECIFICATIONS

FIRST MANUFACTURED: 1976

 LAST MANUFACTURED: 1977

SPECIFICATIONS:General

Power Output : 40 W min. RMS/ch @ 8 ohms with <0.1% THD

Power Bandwidth : from 10Hz to 40kHz at <0.1/THD into 8 ohms

Frequency Response : 4Hz - 130kHz +/-0.5dB

Rise Time : 1.5usec

SQUARE WAVE - POWER AMP - <1.5usec

Square Wave Tilt : < 5%

Total Harmonic Distortion : < 0.1% from 250milliwatts to 40watts RMS

FM MONO - 0.3% (1kHz)
FM STEREO - 0.4% (1kHz)

Intermodulation Distortion : 40 watts SMPTE < 0.12% and 1 watt SMPTE < 0.15%

Hum and Noise : better than 60dB below rated output (unweighted) -40dB

Damping Factor : > 30 (1kHz @ 1watt)

Input Sensitivity : POWER AMP - < 1.2V

Input Impedance : POWER AMP - 33kilohms

Signal-to-Noise Ratio: POWER AMP - > 90dB @ 40 watts

Output Level/Impedance: PREAMP - 600 ohms

Phono Overload : >95mV

RIAA Equalization : +/-1.0dB

Loudness Control : +10dB @ 50Hz

Filter : HIGHCUT - -10dB @ 10kHz

           LOWCUT - -6dB @ 50Hz

Sensitivity : FM IHF - 1.9uV FM MONO - 3.5 @ -50dB FM STEREO - 35uV @ -50dB AM - > 250uV/m

Capture Ratio : 2dB

Image Rejection : -80dB -75dB

Spurious Response Rejection : -80dB

IF Rejection : -90dB -60dB

AM Rejection : 60dB

Alternate Channel Selectivity : 80dB 55dB

Multiplex Separation : 40dB (1kHz)

Output Level : 0.5V

AM Signal for 1 watt < 150uV/M

Selectivity : AM - 35dB

 

430 SPECIFICATIONS

WARRANTY: 2 Years

 FIRST MANUFACTURED: 1976

 LAST MANUFACTURED: 1977

SPECIFICATIONS:Tuner Section

Capture Ratio : 2.5dB

Image Rejection : 60dB

Spurious Response Rejection : 50dB

Alternate Channel Selectivity : 60dB

Total Harmonic Distortion : MONO - 0.6% STEREO - 0.7%Amplifier Section

Power Output : 25 watts RMS/ch, both driven into 8 ohms 20Hz - 20kHz,w/< 0.3% THD

Power Bandwidth : 10Hz - 40kHZ at < 0.3%THD into 8 ohms both channels driven simult. @ 12.5 watts /ch

Frequency Response : 20Hz - 20kHz +/-0.5dB, 4Hz - 140kHz, -3dB

Rise Time : SQUARE WAVE - <3microseconds

Square Wave Tilt : < 5% at 20Hz

Total Harmonic Distortion : < 0.3% from 250milliwatts - 25 watts RMS, both driven simultaneously into 8 ohms (20Hz-20kHz)

Intermodulation Distortion : < 0.15% at rated power output

Hum and Noise : Better than 65dB below rated output

Damping Factor : 40

Edited by DizRotus
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I have two 730s and one 630 being expertly reconditioned. At least two will be available.

Cool, so if seller's remorse creeps in you are my backup plan, Neil.  :biggrin:   Thanks for posting the 730 and 430 specs.

 

Kernel, yeah yeah please post your thoughts once you have time after Christmas.

Edited by Rivernuggets
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I have two 730s and one 630 being expertly reconditioned. At least two will be available.

Cool, so if buyer's remorse creeps in you are my backup plan, Neil.  :biggrin:   Thanks for posting the 730 and 430 specs.

 

Kernel, yeah yeah please post your thoughts once you have time after Christmas.

Lyle,

Remorse of any kind is unfortunate, but did you mean "seller's" remorse? If so, check with me if you get a craving for a Dale S refurbished h/k x30.

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I'll have to get one of these someday.

You have a lot of speakers to try with a 730 should you buy one.  Have a shootout against some of your Sansui gear.  With my ears, the 730 sounded better than a Sansui 9090DB.  I had Forte IIs for two channel at that time.  Not saying the 9090DB was bad......just preferred the 730.

 

They truly are special.

        :emotion-21:   

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I'll have to get one of these someday.

You have a lot of speakers to try with a 730 should you buy one.  Have a shootout against some of your Sansui gear.  With my ears, the 730 sounded better than a Sansui 9090DB.  I had Forte IIs for two channel at that time.  Not saying the 9090DB was bad......just preferred the 730.

 

 

 

They truly are special.

        :emotion-21:   

 

I wasn't overly impressed by the 9090db, either. I'm thinking in might have been due to old and needing recapped. As most know, ears are subjective and worse that that, memory and different rooms really can make a large difference. 

I want to try it against others that I have in the same watt and price range, such as the Marantz 2238b and the Sansui AU7700. 

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