Recent content by Mirotvorac

Wow, who knows, somw issue with Marantz? As suggested, I might try dropping the right side of amp 😃. He mentioned that sound was OK when volume was turned to max - this gave me an idea; in that position volume potentiometer has no resitance. So, I'll check the volume potentiometer first.

Thanks for detailed description. First, I need to say tha first thing I tried is to swap output channels form DAC to the input of Martz. In both cases speaker output on Marantz on R channel output was below level of L channel output. So my focus is on the Marantz. What I still can't figure...

What confuses me is the uneven difference throughout the frequency spectrum. Okay, I didn't measure it in a lab, no proffessional equipment, many interferences/reflections around, but since it was a single speaker not moved from its place, I expected same difference and the same peaks on both...

I have an old AKAI AM-39 which I borroved to a friend of mine. It does have some issues with reed-relays and dust and mechanical issues with one button, but the sound is cristal crisp. And it is approx. 30 years old, and I bought it after it worked for some 5 years in a smokey caffe..so...

Thanks for the tip on servise center, I'm in Croatia. This idea with bias makes sense. I came to an idea to play with the volume potentiometer, but that requre some cutting on the board and soldering. Without soldering, I can short-circuit the input to the potentiometer. If the problem...

I already did this (input swap). It happen with any source.

Test tones from..youtube:: https://www.youtube.com/playlist?list=PL8y869KV1Ir8ks9G0avxw9XBP1WkJjedw

Found a solution? I had very anoying hissing sound from my TV set connected to amplifier, after I changed on TV sound utput from speakers to music system. It was an optical output on TV. It worked when output was set on "TV speakers". Very anoying and loud Hissing sound appeared when I changed...

yes, yes and yes. I tried earlier changing intercoonects between DAC and Marantz Then changing speaker cables. This results are with single speaker, single speaker cable, single interconnection cable, the inly thing I changed was the amp L & R channel output on the back of the amp.

I measured both channels on the same speaker to avoid what you mention. So, one speaker, one fixed position, with swapping output L & R on the amp.

I just did a quick test with my freq. Analiser, same speaker, same cable, L ch, than R ch. Source: phone bluetooth-DAC-PM6003. There are differences throughout the spectrum. Note that differences on single measured frequency varied up to 2 dB, so this is approximation (pic attached). So where...

Hi, I have a strange situation with my amp. One channel is not reproducing whole freq. range. I discovered that midrange is somehow attenuated while playing with bi-wiring - I had tweeters connected without modrange speakers, and it was clearly noticable that midrange (maybe and part of HF) is...