Tubes 4 HiFi is also known as Vacuum Tube Audio

Our best known product is the VTA ST70 PCB modification for the Dynaco ST-70 amplifier,
that first appeared in a Glass Audio magazine article in 1989.

You can purchase any of our products here from these web pages, making payment with a credit card through PayPal,
or sending us a money order. Thanks for your support!

Please contact me at anytime to order these items or to inquire about other products.

send email to info@tubes4hifi.com

our famous VTA70 driver PCB upgrade for your amp!

 

we've been selling this modification/upgrade for the ST70 for 35 years now!!

 

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amplifiers

ST70 - VTA70 amplifier	ST120 - VTA120 amplifier	M125 monoblocks

amplifier parts - transformers & chassis

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ST70 mods & upgrades	MK3 monoblocks	custom amps
phono only preamp kits PH14 PH16	line stage preamp kits SP10 SP13 SP14	assembled SP14 with remote

premium speaker cables 10' $55 PAIR + $10 shipping 14g dual cable with gold-plated bananas   compare to Audioquest type 4 at $280 !!

premium speaker cables 15' $60 PAIR + $10 shipping 14g dual cable with gold-plated bananas   compare to Audioquest type 4 at $350 !!

Digital Voltmeter check your bias ! one for $14 free shipping   two for $22 free shipping

premium power cord 5 feet $55 (compare at $100+)

RCA-RCA stereo pair 5 foot interconnect $55 (compare at $80+)

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click here to go to our downloadable Dynaco manuals page

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visit our "Dynaco Tube Audio Forum"

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our Glass Audio magazine article comparison test of ST70 modifications

 

 

send email to DAN at: info@tubes4hifi.com

 

 

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tubes 4 hifi

"the path of least resistance is through a vacuum"