Search
 
 

Display results as :
 


Rechercher Advanced Search

Subscribe to our Feed
addtomyyahoo4 Subscribe with BloglinesAdd to netvibes
Add to Google

Antique Sound Lab MG-Head OTL 32

View previous topic View next topic Go down

Antique Sound Lab MG-Head OTL 32

Post by BruceWayne on Wed Jan 01, 2014 10:49 pm

For sale Antique Sound Lab MG-Head (Output Transformerless) OTL 32, tube headphone amp. It can also be used as a tube pre-amp. This model has no tube cage and is without remote.

Fully tube (pre 12AU7, power 6BQ5/EL34) and tube regulated (5AR4) power supply.
The power tubes are connected as triodes and not pentodes. That's the only musical way.
Series Regulated Push Pull (SRPP) output topology with zero global feedback.

Expect lush and organic tube sound to your private sonic heaven - no wimpy solid states wannabe here!
It is one of the few headphone amps that can drive AKG 1000 headphone. Perfect match for Grado's.

What is special about Output Transformer-less, i.e. no output transformer!

Transformer helps to match impedances, step up or down voltages. Unfortunately it is good in theory and at a fixed frequency. Put simply, music is not just a simple sine wave at one fixed frequency. It is also not just at a fixed amplitude (loudness). It has harmonics, modulations, interactions of different instruments and sounds, dynamic, attack and decay. Oh, by the way, transformers also introduce phase-shifts. So you can see how things can get really screwed up! That's why having a good output transformer can make or break a tube amp. But of course no output transformer is the best. Only problem is that it is easier to use a transformer to match impedances to deliver the voltage swing to drive loudspeakers.

Condition: 8/10. Bought new from a local dealer. Excellent working order as it is well taken care of. The tubes probably have only been used for less than 20 hrs.

Price: RM2,600

Contact# 017 - double eight double three 785

http://www.enjoythemusic.com/magazine/equipment/0806/asl_mghead_emmeline_stealth.htm


Last edited by BruceWayne on Sat Oct 07, 2017 2:58 pm; edited 6 times in total (Reason for editing : Update description and price)

BruceWayne
Club Member
Club Member

Number of posts : 35
Age : 59
Location : Klang Valley
Registration date : 2013-10-03

Back to top Go down

Re: Antique Sound Lab MG-Head OTL 32

Post by BruceWayne on Sun Jan 12, 2014 12:37 pm

Bump

BruceWayne
Club Member
Club Member

Number of posts : 35
Age : 59
Location : Klang Valley
Registration date : 2013-10-03

Back to top Go down

Re: Antique Sound Lab MG-Head OTL 32

Post by BruceWayne on Sat Oct 07, 2017 2:59 pm

Hoist Up My Post. Hump is better than Bump!

BruceWayne
Club Member
Club Member

Number of posts : 35
Age : 59
Location : Klang Valley
Registration date : 2013-10-03

Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum