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Tuesday, August 18, 2015

Single Ended Tube Amp

A little update on the Electrohome tube amp that I recently picked up, first off it is a Single Ended tube amp as opposed to a Push/Pull tube amp. There is a tone of debate on which sounds better and for the price I paid for my amp there is no debate.

The 6BQ5 tubes run around 5.7 watts per channel of pure Class A power, plenty of power for very efficient speakers at a normal to semi loud listening level.

I have run the gauntlet of speakers through this amp and only two pairs really shine and bring out the best in the audio signal and believe me this amp is extremely revealing, open and absolutely clean and clear, so much I hear things I never heard before.



So, which speakers sounded best with this amp?

Tannoy Oxford Gold, hands down winner....


There is something about the horn loaded tweeter that is spot on with this amp. The Oxford Golds are 93db efficient and the 10" woofer rounds out the solid bass perfectly. The tweeters are nearly time aligned with the woofer, so the sound is great. The highs sparkle, the mid range is spot on as if you are in a studio with the musicians and instruments right in front of you, it really is amazing to listen through these speakers. When listening to my audio sources through solid state equipment, the Tannoy's do not shine as well as they do with tubes.

Another great speaker to run with the tube amp is the Sound Dynamics 10S, once again a very efficient speaker at around 96db, the bass is much fuller with the Sound Dynamic but the overall sound is more like you are at an 1000 seat concert room.







The recessed horn loaded tweeter throws out a wider sound stage and is not recording studio precise as the Tannoy's. These speakers are time aligned due to the recess of the tweeter, smooth across the mid range and deep in the bass. Like I said these are like you are at the concert where as the Tannoy's you are in the studio.

I am absolutely  awe struck in what I am currently listening to and feel that I have reached a peak in performance and I will find it hard to top this set up.




Wednesday, August 5, 2015

Akai AM-2450

Another great little amp fell on my lap recently, this Akai AM-2450 amp.






A very solidly built 45WPC amp from the latter 70's, I have spent a bit of time with this amp and was very impressed with the sound.

Electrohome Marseilles tube receiver

My first tube receiver was found today inside a console stereo, an Electrohome Marseilles unit.

When tested it fired up in the store and it is a stereo unit so I was in luck.

I see there is a growing trend in some areas in restoring old console stereos but locally there is not.

I managed to safely remove the receiver unit from the wood coffin, the turntable did not look worthy of saving.








I do not have the space for a full console stereo and if it was more of a mid century piece perhaps I would refurbish the unit.

The receiver is out and resting on top of the Marantz 2270 and now I know what tube sound is all about...smooth, detailed and warm.

This unit is currently powering the Braun L830's.

This unit is missing a few knobs so I moved the knobs from the tuner section down, I do not plan on using the tuner portion of this unit.