ESC
ST-70 (1988) (Rev. 2)

ST-70 (1988) (Rev. 2)

BrandDynakit, Dynaco
ManufacturerDynakit Sound Values, Sound Values, Inc.
DesignerGeoff Pomeroy
FunctionAmplifier, Power
Produced1990
CountryUnited States
Model IDStereo 70
Signal PathAnalog Hardware
Dimensions33 × 16.5 × 24.1 cm (W × H × D)
Weight32lbs
Power50/60Hz 190W
Frequency Response10Hz-40kHz ±0.5dB
Output Power35W
Output Power (Peak)80W
Power Response (35W, 1% THD)20Hz-20kHz ±1dB
IMD (1W)0.05%
IMD (35W)1%
SNR90dB
Damping Factor15
Channel Separation55dB
Output Impedances4/8/16Ω
Output TubesEL-34
Tube ComplementEL-34 (x4), 6GH8 (x2), GZ-34/5AR4
FinishCharcoal Brown
NotesNewly manufactured kits by Sound Values, Inc (formerly Stereo Cost Cutters) built to original ST-70 standards after stock of prior buy-out components sold out. With the supply of 7199s depleted, the 6GH8 was substituted in a revised model by Geoff Pomeroy consulting for John Peterson of Sound Values.