hiss

My SX770 has a hissing noise only heard on the preamp RCA out on the left channel. It is the same volume regardless of how loud the volume is turned, and is present regardless of which input is selected. Any idea which transistor may be the culprit? Everything else works perfectly.

Hi, I have a 2215 (non-B) that has an audible hiss and some hum. I'd like to try fixing this myself, but I don't know if I want to do a full re-cap and replace all transistors, etc. if I can narrow down the cause. I'd like to start by fixing the circuit(s) that needs fixing if possible. I...

Hello to everyone, I have a problem with my SA-606 (SA-6700 version for Europe): There is an hiss similar to white noise through the headphone output. In the past I did some maintenance: 1) Recapping - used Nichicon "audio grade" KA series (light blue sleeve) for everything but main filters...

(moved to Pioneer audio - my bad)

My Pioneer introduced quite a high level on hiss (not a hum) on the left channel in record mode at even the lowest record level. The right channel has no real perceivable hiss except at the high record level. I have grounded the unit, but the left channel hiss in record remains and shows up on...

Hello, Recently my friends tried to use multiple active speakers serialized to each other and here is the setup style: Mixer: left channel out from TS jack -> to in 1. Speaker-> 1. speaker out -> to in 2. Speaker -> from 2. Speaker Out ->...>to in 5. Speaker. (total cable length over 50m)...

Hey guys, and girls ofc :) Recently started learning how to repair faulty amplifiers. My very first project was a Peavey CS 1000 Power Amp that i purchased off ebay. Took me a while to get to grips with what im doing, But i eventually figured it out... But to cut a long story short.. The amp...

Hello, I have a problem with my trusty Marantz PM-68 which I use now as a secondary amp for my DAC connected to PC in my office. I've been getting problems with right channel getting quieter and overall sound degrading in last few weeks with slightly crackling/hissing sound in both channels...

A friend of mine builds tube preamps. After listening to one of the designs at his house, I had to bring one home it sounded fantastic. Clean, clear and dynamic. No issues...yet. I bring the preamplifier home. I proceed to remove my solid state preamp, and in place of that I put the new tube...

Howdy all: This is the same Marantz 2235 receiver I replaced transistors in back on this thread. I'm getting a hiss from all input channels when listening through headphones. Even with nothing playing. Through the speakers all sounds fine. In reading the service manual, I'm having a hard...

Hi, I'm very new to audio stuff so please keep that in mind in your responses. I have a C26 Preamp that buzzes (combination of a hiss and a hum) fairly loudly in both channels, and can be heard during music playback (especially with headphones). It happens on all inputs, even those that are...

Howdy all. I have a Marantz 2235 and getting speaker hiss from the right channel. It happens: Regardless of where I have balance set On every input (phono, aux, tape, etc.) I have thoroughly DeOxited the crap out of this thing, and I cleaned the relay. (Business card sprayed with DeOxit...

Hi. I don't post hear much cause I am total novice with any thing under the hood of my system, but I appreciate all the wisdom on this board. My issue is that my beloved Juicy Music Extreme preamp is giving off a loud white noise hiss noise floor in both channels capable of being heard up to...

I recently plugged in a vintage power amp and preamp. I got close to the right speaker I can hear the noise that you'll hear in the video that I posted the link to. It's a very quiet distortion/hiss sound. After swapping through cables switching speakers around, I figure that the culprit must be...

Hi all it's my first post here and it's about my first purchased Hi-Fi amp on this audio journey. It's a Sony TA-F222ESA (aka 570ES in the west) and I admire it being a little beast with 100W @ 6 ohms with a very clear and neutral output. However the topic at hand is I'm experiencing a hissing...

Greetings fellow Solid-Staters, and Happy Belated Thanksgiving! I'm working on my grandmother's Magnavox 1RP660 console stereo, chassis R204-18-20, and need some advice on how to proceed with troubleshooting a problem: When the four position Bass control is put into any of the positions below...

I recently acquired a Pioneer SA-910 integrated amp. This is the Japanese 100V version of the SA-9100. Although it sound OK when I heard it at the seller's place, I realize it has a hiss coming from both speakers at all times, a bit louder on the left channel. The hiss is there even at 0 volume...

For many years I have been a "Promenader". For a variety of reasons I decided not to get a season ticket this year. I have set up an Amp, a FM Tuner and Speakers in my living room (Quad 33/303, FM3 and ESL-57). For the past two nights I have been plagued by hiss and crackles on quiet passages...

Why does my C28 not play nice with contemporary high-powered amps? I connect, say, a 200wpc class-D amp and I get so much hiss I can't listen to music. And I am using shielded RCA cables between the pre and the amp. Then, when I replace the C28 with a Schiit SYS, all the hiss goes away...

Hello! My rebuilt LX-626 (in some ways similar to the SX-626) has a faint hiss regardless of the selected function. Even with volume set at 0 it is there. The speakers are a pair of Q Acoustics 3020. With these on the hiss is barely noticeable. However, with Audio-Technica MSR7 headphones you...

Hello AKers, I have a Yamaha AX-390 stereo amplifier with a rather annoying problem. There is hiss from the speakers, equally loud on both channels and affected by the balance knob. When I crank up the treble knob, the hiss gets louder. Turning up the volume knob also makes the hiss louder. The...

I got my Technics SL-1700 from one of my favorite record stores in Louisville KY as a gift when I asked about it. They told me it did not work, the speed change was stuck and the speed controls out of wack, it came without counterweight, headshell and mat. Before investing time and money on it...

Hi everybody, After some unsuccesfull troubleshooting last year I've decided to tackle the 'big one' in my collection again, the Kr-7060(=gunmetal kr-7600). The problem is as follows: After the unit is has been playing normally for about 1h-1.5hrs, occasionally I'get a loud pop from one of...

Hi guys, I have a problem with an old Marantz 2226. It made a hiss/static noise when I pushed the power on/off switch during few seconds every time, and the noise disappeared after approximately 6/7 seconds with no noise at all during hours. I though it needed a good cleaning with Deoxit...

Good day all. * This is a bit lengthy - please bear with me :) * So my Marantz separates have been down for quite some time (waiting on me to service them) and I'm finally putting in an effort to get them going again. I'm starting with the 7T and as of last night I'm at the following point...