2. amps-preamps
  3. 151292-18279

I need some techy help in order a preamp--resistor values.

Thank you in advance!
I'm thinking of ordering a Khozmo preamplifier until I can afford something much better.  I'll be mating it with an Elekit TU 8600 amplifier. 

The Khozmo website gives options on resistors.  See https://khozmo.com/stereo_selector.html#remote

The Elekit has the following specs:
  • Tubes: 300B x 2, 12AX7x1, 12AU7x2 
  • Rated output: 9.2W + 9.2W (10% THD)
  • Rated input: 320mV
  • Residual noise: 36uV (IHF-A)
  • Frequency response: 7Hz-40kHz (-3dB)
  • Input impedance: 50kΩ
  • Output impedance: 4-6.3Ω, 8-16Ω selectable
Any intel and advice will be appreciated!
jbhiller

Showing 1 response by ieales

ieales's avatar
ieales
1,201 posts
 
  1. First, it's a level control, not a pre-amp.
  2. It can also be an input selector.
  3. I've used passives and a slew of actives for 40+ years. Each has a sound. Each interacts with cables and associated electronics. There is no free lunch.
SMD resistors have lower inductance and thus have a different sound than leaded parts. However, they require a PCB and a different switch and thus have a different sound.

Each passive topology has its proponents. Each has a different sonic characteristic dependent on the associated components and cables.

Most passives do not compensate for varied amplifier input impedance. Step levels will vary considerably making audition difficult unless one has the tools and skill necessary to match auditioning levels.
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