KT66 Valve Amps

Recently developed for 2018 Falls Audio has created a KT66 amp based on the legendary Dynaco Output transformers. The valves supplied are XX, Nos valves can be sourced by the owner if required.)  This amp has plenty of drive and tone. It will surprise many people just how capable this small footprint amp is. 

It features a luscious red paintwork and clean lines. The specifications for this amp are 35 watts per channel, 12AT7 input valves, 12AX7 phase splitter. The rectifier is an RCA 5V4GA. (Please call for pricing and availability.)

GM 70 Valve AMP

This amp was prototyped yet hasnt been completed. GM70 valves are challanging to work with. 

 

 

KT66 Valve Amps 

 Paulskt66-Optimized

 Specifications KT66 Valve Amps 

Type Push Pull MonoBlock

Valves Per Channel

2 X KT66

1 X 5692

1 X E8OF, EF86

6SJ7    

Power Supply

1 X 5R4

1 X 6L6

1 X 6SJ7

1 X Od3 REF

Power (per channel) 38 Watts RMS
Frequency response 20 to 55,000 Hz

Taps

8 Ohms

16 Ohms

Output Transformers

Sansui

These amplifiers have sufficient power to drive most speakers. Great attention has been paid to the power supply  This KT66 amp offers excellent bass control and can drive large speakers such as a 15 inch without any wollyness. The attention to detail in the power supply and use of NOS KT66 valves also means they never sound strained even when fed complex large scale music. These amps are a great all rounder and could be used in many different systems.

245 Valve Amps 

 45-amp 1

 

Type 245 Push Pull MonoBlock

Valves Per Channel

 

2 X 245

1 X 245, 310A

Power Supply

1 X U52

Power (per channel) 8 Watts RMS
Frequency response 30 to 25,000 Hz

Taps

8 Ohms

16 Ohms

Output Transformers

Tango

These 245 amps required a leap in imagination. While single ended amplifiers are highly sort after by valve purists a well-executed push pull amp can provide extra output power and can deliver a lively and open sound.

The aim in the premium 245 amp build was to preserve good qualities of a single ended amp, such as immediacy, sense of timing and tone, yet also deliver outstanding openness and dynamics even when playing demanding music. To achieve this the amp was seriously over specified, and high quality parts were used everywhere. Being a two-box design running in pure Class A with filament filters and careful power regulation the noise floor is very low, allowing you to hear the subtle nuances, the timing changes and tonal shifts in the music.

The music delivered by this amp is effortless and beautiful. There is no strain and fatigue even when most demanding pieces are played. The customer for this amp says:

....he is getting sound out of his speakers that he ‘never thought was possible’. These amps allow you to be ‘more emotionally connected to the music’. Good music played with these amps now ‘reaches up and grabs you in a way that you cannot ignore, it is sublime’.

EL34 Valve Amp 

20160815 074738 1 

 20160815 074743--1-

 Specifications  

Type

Push Pull Parallel

Class A/B2 

Valves Per Channel

 

4 X EL34

Power Supply

2 X 5R4GY

1 X 6L6

Power (per channel) 96 Watts RMS
Frequency response 35 to 30,000 Hz

Taps

8 Ohms

16 Ohms

Output Transformers

Hammond