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Sold Audio innovations series 500 EL34 integrated amplifier

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Sold Audio innovations series 500 EL34 integrated amplifier  Empty Sold Audio innovations series 500 EL34 integrated amplifier

Post by timurmusicfan Mon Apr 03, 2023 5:10 pm

A classic from the 90's. 
Quartet of EL34 provide 25W of Push-pull Class A power
with SS rectification. 
Preamp tubes are ECC83 with ECC88 driver tubes. 
Current: EL34 = Ruby EL34BSTF 
Line preamp = Telefunken 12AX7 (well worn)
Phono preamp = original Precision ECC83 (not used since y2k). 
Driver: Audio innovations ECC88 (well worn). 
This model is with the sought after Henley transformer with 4,8 & 16 Ohm outputs. 
Bought new in 1991. 
Upgraded: coupling caps and Diode (done by Trikay years ago).
Note: 5881 tubes works well in this amplifier. Improves the bass significantly although it sacrifices a little bit of the EL34 sweetness. 
Condition:7/10 due to age. 
Performs and looks great. 
Used sparingly for many years now. 
Asking price: sold to a true blue Audio Innovations fan. 
Please Google for reviews. Unlike some tube amplifiers, this amplifier can rock. The phono preamplifier in this integrated (a pair of good ECC83/12AX7) can beat many standalone preamplifiers. 
Fully recapped July 23.
Box and manual lost in the mist of time. 
Can test it @Cyberjaya. 
Wasap o169 two two 786 zero for photos.


Last edited by timurmusicfan on Sat Aug 19, 2023 6:43 pm; edited 3 times in total (Reason for editing : Update information)

timurmusicfan
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Number of posts : 255
Age : 62
Location : Cyberjaya
Registration date : 2010-04-15

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Sold Audio innovations series 500 EL34 integrated amplifier  Empty Re: Sold Audio innovations series 500 EL34 integrated amplifier

Post by timurmusicfan Sun Aug 13, 2023 1:23 pm

Recapped Jul 23.

timurmusicfan
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Frequent Contributor

Number of posts : 255
Age : 62
Location : Cyberjaya
Registration date : 2010-04-15

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