Apollo Preamp

 

Continuing our work in the area of fine preamplifiers, Apollo tube preamplifier was design. With the success of the volume control. We combine our TVC and our tube preamp together in a single chassis. Thus making a superb combination, getting the best of both worlds

Owners of solid-state amplifiers were kept in mind during the design phase, zero offset voltage. The transformers maintains a zero offset voltage. The transformers has a physical isolation thus protecting precious amplifiers and speakers from damage. All the outputs of our Apollo preamp are electrically isolated.

Design Format
What makes our preamp different from other manufactures is the usage of the output transformers. Most preamps in the market are either cap-coupled and OTL design. This may not be the perfect match in terms of impedance matching. Feedback is often used in this types of preamps to lower the gain and the output impedance. We however opted to use the transformer to perfectly match the preamp tube to power amplifier at the same time lower the gain and the output impedance. Providing the effortless sound that we are known for.

Extra care was place in the power supply. By using a separate unit with tube rectifier and LC filter reduces power supply noise. The power supply quality is very critical  to bring out the nuances in the music
 

The Apollo preamp was design in such a way to maintain the strong sonic character of the TVC while providing gain and dynamics drive. Specially attention was paid to prevent the tube stage from changing the wonderful sonic character of the TVC.

However if a more colored sound is required, a simple swap to the 6cg7 tube would add the coloration and body to the preamp

Parts Selection:
Tube selection is made to achieve sufficient gain and output power with only one triode. Russian 6n1P is well known as robust and very linear triode. With our high quality output transformer, we opted for zero feedback design. Thus maintaining the musical flow of the preamp. Direct heated rectifier tube 5y3 provides low noise level and soft start without the normal transient effects. Implementation of other quality parts Mundoft Capacitors, allen bradley carbon compostion resistors, silver rca, ebony knobs and etc

Specifications:
Tubes: 2x 6N1P , 1x 5y3

Specifications

Gain 6dB(standard), 6 and 12dB (custom)

Output impedance 20 Ohms

Frequency Response 18Hz to 43Khz (-3dB)

Output Noise 0.3mV

Inputs: 1 XLR, 2 RCA pairs

Outputs 1 XLR, 2 RCA pairs

 

Apollo Preamp

  USD1100 Apollo Preamp
            USD200 Upgrade the output transformers to C-core
   USD200 Upgrade the TVC to C-core

 

Shipping Cost of 13Kg via DHL

USD120 United States, Japan, Asia, Australia
USD145 Belgium, France, Germany, Italy, Luxemburg, Netherlands, Scotland, UK is

USD180 Rest of European Union countries

 

Accessories

Purchase the TVC with our Handmade Silver Interconnects and receive free shipping for the cables and a USD5 discount.

 

 XLR 1.0m USD85

 XLR 1.5m USD105

 RCA 1.0m USD60
          RCA 1.5m USD75
          Ebony Cones Set