Instruction Manual
UAD Powered Plug-Ins Manual - 544 - Chapter 55: Studer A800
+6dB, +7.5dB, or +9dB calibration levels, which can be used at their recom-
mended settings, or tweaked for additional tonal options. Input, Sync and Re-
pro paths, plus Thru (bypass) are available for authenticity, providing all 
available circuit options of the A800. A huge time saver, the Studer A800 
plug-in features an innovative Gang Controls setting, allowing for instant glo-
bal adjustment of any parameters for all Studer A800 instances in your ses-
sion.
Secondary controls are hidden behind the reel deck, and can be exposed by 
clicking on the Studer badge or Open label of the plug-in GUI. The Equaliser 
control allows the user to select between the American (NAB) and European 
(CCIR) standardized EQs, providing regional pre-emphasis/de-emphasis fil-
tering at 7.5 and 15 IPS, each with its own sonic qualities — plus the AES EQ 
at 30 IPS. The HF Bias calibration parameter allows the user to tune the HF os-
cillation voltage feed to the magnetic record head, striking a balance be-
tween record sensitivity and distortion. This can also be used creatively as an 
effect — from warm, overbiased sounds, to voltage-starved distortion and 
chatter. HF Record is a calibration filter that allows for HF makeup when the 
ideal Bias leaves a high frequency deficiency; both HF Bias and HF record 
are fed into the tape nonlinearity. Sync and Repro HF and LF calibration EQs 
allow for adjusting for a flat playback response, or can also be used cre-
atively. All Secondar
y Controls (page 549) can be automatically calibrated 
to the manufacturer’s recommended settings via the A800’s Auto Cal feature, 
or may be disabled. Finally, separate controls for Hiss and Hum are available 
— each tuned to default settings to match the hardware behavior — with a 
global noise bypass option.
Multitrack Tape 
Machine
The primary purpose of Studer A800 is to obtain multichannel tape sonics 
within the DAW environment. To obtain the classic multitrack tape sound, the 
plug-in should be placed as the first insert on individual tracks, before other 
processing is applied. Creative “non-standard” results can be obtained by 
placing the Studer A800 in subsequent inserts after other processors or on 
busses in a send/return configuration. Mixdown to two tracks can be emu-
lated by placing the plug-in on the stereo output bus.










