Yeah, if you were in Moscow Idaho no problem, Moscow Scotland might be a little tricky to get it seen. Moscow Russia, myself, I would consider moving, those winters.
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Mesa Subway D-350!
- Thread starter mmbongo
- Start date
You're missing the point of Moscowbass's question. He has a specific hum problem when lowering the volume on his 3 basses. No one has replied to his specific concern yet.
I apologize to the OP, I saw Mesa D-350 after his question and thought he was asking if anyone had tried it out. I thought it was odd and rather lazy that someone would ask such a question when it's all here in the thread, duh stupid me.
You are not stupid at all. It's just one of those threads with multiple things happening and it can get confusing.I apologize to the OP, I saw Mesa D-350 after his question and thought he was asking if anyone had tried it out. I thought it was odd and rather lazy that someone would ask such a question when it's all here in the thread, duh stupid me.
- Feb 12, 2006
- 60,963
- 5
- 220,651
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
Hold on a minute... are you hearing hiss or hum? The difference is critical to the accuracy of the answer because the potential causes are completely different.
I don't have this issue with any of my basses (D350 or D800).Back reading posts here that people took the time to write is your friend.
Yes it's a hiss not a hum coming for the speaker when the amp is just on even with mute switch activated. But remember, this is from the amp that came to me in an open box, probably a returned abused unit with the bright switch that came off in my hand. My other amps with same cords, wall outlet and guitar don't do this but this amp is being returned anyway today so no real concern. I'm fairly certain a new unit that wasn't damaged or abused would not hiss. Someone else here was referring to a hum they had.
Last edited:
- Feb 12, 2006
- 60,963
- 5
- 220,651
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
So disregard everything that I posted or sent you about hum because that's an entirely different mechanism.
Hiss is a normal component of amplification, the amount of hiss is related to the design and how the amp is being operated, as well as the speaker (with tweeter) being used. The mute switch function has nothing to do with the hiss level, this is normal.
With nothing plugged into the amp, settings at passive, all controls at 12:00 except voicing fully counter-clockwise (flat), and with the cabinet's tweeter set to about 1/2-way up, you should not hear any hiss when in a quiet room when standing say 2 meters away from the cabinet.
With some active/passive basses, the active electronics can still contribute to the noise floor (hiss) when in passive mode, and can be quite noisy by comparison in active mode.
Please go back and re-confirm this before assuming anything else. We have shipped hundreds of these amps without any of the issues you have described, I really think that the only problem you have is the broken switch.
Are these basses active, switched to passive and/or passive only?..thanks for the reply
As per your suggestion I just tried it again. No bass plugged in. Active switch on or off makes no difference, hiss. Tone controls such as diming the treble make no difference, get hiss. Mute or not no difference, hiss. However, I found the master does make a difference. I had it set up like my Aguilar with the master dimed and then adjust volume with the input knob. I guess I shouldn't use this amp in that manner. If it weren't for that darn broken bright switch I'd be keeping this amp.
- Feb 12, 2006
- 60,963
- 5
- 220,651
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
Correct, there is so much potential headroom in the preamp circuitry and so much make-up gain in the master section that there's no need to operate with the master fully up.
What gain and vol settings on the amp did you have? Did the hum continue as you changed them? What EQ settings were on the amp?
I've gotten a weird hum from my tube amp at my house then I plug it in at the club and it is dead quiet. Are your circuits 120 volts in the UK? I know Mesa amps can consume different voltages, but still it could be a clue.
I am curious about what happens once you try a passive bass.
I'm curious about passive bass too... I'll post when I try it. Amp volume just increases hum relatively. Its an Lf hum, only having the bass guitar volume full makes it go away when bass in passive mode....on 3 different basses. Uk is 230volts/50hz, so that is different to US. Can't really see that making a difference, but I'm not qualified to say for sure. I also want to try the DI out pre and post EQ to see if hum is present there. May have a chance of that on Sunday at a gig. I've gigged the amp during the week at a smallish jazz club. Was DI d to FOH and was fine with bass on active. Very impressed with the power from the amp through a 1x12 cab. This is a totally gigable amp! Sound engineer kept asking me to turn down, it was really projecting. EQ on amp was near enough flat, voicing at 10 o'clock. Input volume about 9 o'clock, master at 12 o'clock.
- Feb 12, 2006
- 60,963
- 5
- 220,651
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
Sounds like the passive mode is wired so that maybe the humbucking action is degraded as the volume control on the bass is decreased.
Passive/active switching on a bass with humbucking pickups has to be done correctly or this can happen, especially if the humbucking is handled by the active electronics by using a single coil pickup in differential mode (a slick trick that can get the tone of a single coil with the hum rejection of a dual coil pickup.
Passive/active switching on a bass with humbucking pickups has to be done correctly or this can happen, especially if the humbucking is handled by the active electronics by using a single coil pickup in differential mode (a slick trick that can get the tone of a single coil with the hum rejection of a dual coil pickup.
all of the above
Musicman Stingray (active)
MIM P bass (passive)
MIA P bass (passive)
Ibanez EHB 1000S (active/passive)
Ultra Jazz (active/passive)
Godin RG4 (active)
EDIT: Saw your reply above and I have to say, I don't think I have ever dimed the master on any Subway amp. I set the input to the appropriate place, then adjust master. I would expect noises if I dimed the master.
Last edited:
- Feb 12, 2006
- 60,963
- 5
- 220,651
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
That was the cause of another player's symptoms in this thread.
Yeah, sorry, I was looking at the wrong post.
I have a question but it has to do with aesthetics. I thought I have seen online photos and also seen on a Mesa U-Tube showing actual amps being assembled at the factory where the Mesa insignia on the top front panel looks 3D or to put another way it looks to be an actual metal or plastic plack on the front plate. On the D-350 I received it was painted on and it looks like it may also be painted on the D800 and D800+. Is this something that was once done in the past but no longer, or if you jump up to something like the WD 800 or above is it an actual plack? Thanks
