"Bugle" Phono

audioDIYer · 26th December 2009, 03:36 PM

I have a BIG problem with Jim's "Bugle" Phono.
Hagerman Technology LLC: Bugle Opamp Moving Magnet Budget Phonostage DIY Kit

I have no bass compared to other RIAA preamps.

Where I must change components to get bass without interferring with RIAA curve?

I'm using Ortophon OM5E cartridge.

Salas · 26th December 2009, 05:54 PM

Maybe you got some part value in the wrong place? Did you check thoroughly?

Nanook · 26th December 2009, 07:19 PM

er , have you contacted Hagerman?

audioDIYer · 26th December 2009, 07:38 PM

I'll re-check all components..
The strange thing is I get all bands sounding explendid.. Only bass is lacking.. Not the 'lack' itself but the level..

djn · 27th December 2009, 02:25 PM

Did you try lifting the VTA?

audioDIYer · 27th December 2009, 02:48 PM

Quote:

Originally Posted by djn

Did you try lifting the VTA?

VTA stands for?

gianxdiy · 27th December 2009, 03:28 PM

VTA= Vertical Tracking Angle, it's not YOUR problem for me...
Looking at the incomplete schematics on their website: check R10, R14, C3, then C1 (.22uf?).

26th December 2009, 03:36 PM	#1
audioDIYer diyAudio Member Join Date: Dec 2005 Location: At work	"Bugle" Phono I have a BIG problem with Jim's "Bugle" Phono. Hagerman Technology LLC: Bugle Opamp Moving Magnet Budget Phonostage DIY Kit I have no bass compared to other RIAA preamps. Where I must change components to get bass without interferring with RIAA curve? I'm using Ortophon OM5E cartridge.

26th December 2009, 07:19 PM	#3
Nanook diyAudio Member Join Date: Feb 2004 Location: Chinook Country.Alberta	er , have you contacted Hagerman? __________________ stew ☮ -"A sane man in an insane world appears insane."

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26th December 2009, 05:54 PM	#2
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Maybe you got some part value in the wrong place? Did you check thoroughly?

26th December 2009, 07:38 PM	#4
audioDIYer diyAudio Member Join Date: Dec 2005 Location: At work	I'll re-check all components.. The strange thing is I get all bands sounding explendid.. Only bass is lacking.. Not the 'lack' itself but the level..

27th December 2009, 02:25 PM	#5
djn diyAudio Member Join Date: Oct 2004	Did you try lifting the VTA?

27th December 2009, 03:28 PM	#7
gianxdiy diyAudio Member Join Date: Jan 2009 Location: Pescara	VTA= Vertical Tracking Angle, it's not YOUR problem for me... Looking at the incomplete schematics on their website: check R10, R14, C3, then C1 (.22uf?).

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