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DIY Phono-Preamp - no tubes, max. 130$ incl. enclosure

post #1 of 7
Thread Starter 

Hi there,

 

since I gave my NAD PP2 PhonoPreAmp to my father I now need a new phono-preamp.

 

I am looking for a solid state amp, no tubes this time.

 

I also do not want to spend too much money since my EHHA already becomes much more expansive than I thought.

(As my DIY-Projects always do :-D )

 

Let's say not more than 120$ or 130$.

 

 

Greetings from Germany

Sathimas

post #2 of 7

There are tons of options. 

 

Do you want MM or MC? 

 

Good choice limiting yourself to SS for a phono-stage. The sample to sample variations in tubes really screw up phono-stages. 

post #3 of 7
Thread Starter 

I am using a Denon DL110

Quote:

The DL-110 is a high output type MC which can be connected directly to the MM position of the amplifier without step-up transformers or head amplifiers.

Specifications

Generating method: moving coil

Output voltage: 1.6mV

L/R sensitivity: within 1dB

L/R separation: more than 25dB

Electrical impedance: 160 ohms

Stylus tip: 0.1 x 0.2mm special elliptical diamond

Stylus force: 1.8g (+-0.3g)

Frequency range: 20Hz to 45kHz

Weight: 4.8g

Load resistance: more than 47kOhms

 

So I think althogh I have a MC cartridge, I need a MM preamp.

 

post #4 of 7

1.6mv is right on the edge between the 2, heh. 

 

I would look for simple op amp based phono stages, and keep the parts selection under control. No fancy parts, but you still have plenty of room for reasonable quality. For example: Vishay/dale RN55 are totally adequate, as are orange drop caps or wimmas... nice but affordable parts. 

 

Im personally partial to passive RIAA, but active RIAA is a little less expensive. 

RJM has a few circuits here: http://phonoclone.com/diy.html

and you can find tons more at diyaudio.com

post #5 of 7
Thread Starter 
The phonoclone looks quite interesting, especially since they offer kits.

What I didn't find out on their website, does the board have the
voltage regulation on it or not? I'd like to avoid a two box-build since
I don't have so much space for it at the moment (and it adds more cost).

115$ would be ok if I only had to add the torroid and the enclosure.
(wiring and connectors are always in stock here :-) )
post #6 of 7

I have this one:http://www.hagtech.com/bugle.html  Mine is battery operated, and I'm happy with it.

post #7 of 7

 

Quote:
Originally Posted by funch View Post

I have this one:http://www.hagtech.com/bugle.html  Mine is battery operated, and I'm happy with it.


Good call. From what I have read (I'm not sure if I have actually heard one, heh) the hagerman bugle is quite nice. 

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