Sun Valley SV-EQ1616D

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Stereophile Class A recommended components..


EQ1616D Phono Amp


















Operation Manual 2 & 3



Available April 17, 2020V
Sun Valley SV- -EQ1616D 120/230V version (Point to Point Phono amp Kit)

Price $825
COMBO SV-EQ1616D + SV-PRE1616D $1,575
Made in Japan

UPgrade option:
Gold Lion (B759 X 2 + Brimar X 1) = 145
Gold Lion (B759 X 2 + B749 X 1 + B739 X 1) + ACME 274B = $395.00
Gold Lion (B759 X 2 + B749 X 1 + B739 X 1) + PSAVNE WE 274B = $345.00
EH GOLD 12Ax7 X 2 + EH GOLD 12AU7 X 1 + Neutral Sound 274B = $110.00
EH GOLD 12Ax7 X 2 + EH GOLD 12AU7 X 1 + Psavne HIFI 274B = $140.00
PSAVNE WE274B $245
ACME 274B $265
ELROG 274B $575
LINLAI 274B $ 45
Mundorf Supreme 2.2 X 2 $55 each
VCAP ODAM 2.2 X 2 $80 each




Lundahl MC Transformer will be available Soon... 3 versions with Amorphous core - Standard, OFC, or Silver .

Vacuum tube phono equalizers are one of the most difficult and complex circuits to design. Commonly called a “phono EQ” or “phono stage”- it has the lowest input voltage among all audio equipment (1 mV or less for MC input), and the highest gain (MC input). Technical skill is needed to design a phono equalizer that can multiply the cartridge’s mV output voltage up to 1000 times for a 60dB gain.

The biggest feature of the SV-EQ1616D are the 6 settings available to match the various equalization curves that spans the decades of recorded material. Over the years various equalization curves have been used in the recording process- and this phono equalizer will faithfully reproduce the sound of how the recorded material was meant to be heard. This is a monumental product that supports modern RIAA EQ standard for recordings, as well as USA-SP, EU-SP, old AES, Columbia (old NAB) and London equalization curves.

Enjoy your records to your heart’s content.

Supports 5AR4, 274B equivalent rectifier tubes


 
Last edited:
What are these caps?

Greetings Victor,

What are these caps, brand/model, shown in a previous thread? See picture.

I see you are offering Lundahl SUTs as an option. I use a Lundahl LL1931 (copper wire) in my rig and like them very much.

Cheers, Steve
 

Attachments

  • upgrade-caps.jpg
    upgrade-caps.jpg
    339.2 KB · Views: 155
Hi Can I ask how the 'mono' switch works, if you have a stereo cart?

It appears that it would take the L channel from the cartridge and ignore the R channel, and reproduce the L channel in both the L and R outputs - is this correct?

Say if i've been listening to stereo records through a stereo cartridge, and want to switch to a mono record - do I simply flip the switch on the EQ1616D?
 
Last edited:
EQ1616D build

Completed the power board of the EQ1616D. Not difficult, but there was a glitch in the directions.

The parts list of electrolytic capacitors on page 5 does not include the 1000 µF 25v capacitor, or mention location C108. The diagrams on page 8 show location C108 with this capacitor. From the top view of the board on page 8, it looks just like the 1000 µF 16-25v capacitors at C107 and C109, so it’s easy to miss the difference.
 

Attachments

  • IMG_0092.jpg
    IMG_0092.jpg
    995.2 KB · Views: 296
Thanks - can you explain a bit more about the MC transformer upgrade? How will the signal path from be different when compared with the stock EQ1616D (ie what component of the stock build does the lundahl replace)? Have they been doing this lundahl upgrade in japan?
Many thanks!
 
I see - thanks! So the MC signal is bumped up to MM-like signal strength by a FET based amp, and then that signal bumped up to line level by the tube based amplification? Meaning that by using the MC transformer you are removing solid state based amplification from the chain?
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.