API TranZformer GT Guitar Pedal - Long & McQuade Music Educator Site
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API TranZformer GT Guitar Pedal

Departments > Guitars > Guitar Amps > Amp Preamps > API > TranZformer GT Guitar Pedal
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SKU: # 697349
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Easily and affordably bring the world-famous analog sound of API to your guitar with the TranZformer GT guitar pedal. The TranZformer GT is a multifunction pedal that combines an API 525 feedback-type compressor with a guitar-optimized 3 band equalizer, both independently in/out switchable. The unit also features phase invert switches on each output, ground lift, clip indicator, transformer output and a hard wire bypass switch.

• Traditional fully discrete API circuit design
• Variable Compressor with in/out switching
• 3-Band +/- 15dB Equalizer with in/out switching
• Input Gain control with +30dB of gain
• Balanced and Unbalanced Output Phase reverse
• Balanced Output Ground lift
• Included 18 volt external power supply optimizes performance
• Hard wire bypass switch
• Universal +18VDC power supply
• Clip LED monitors Input and Output stage clipping


Input connection: 1/4" Hi-Z unbalanced instrument input

Input Impedance: ~500kΩ

Maximum Hi-Z instrument input level before clipping: +13dBu

Output connections:
• 1/4" Hi-Z unbalanced output w/ variable level control
• XLR Male balanced line output, fixed level
*Balanced line output level is +6dB higher than Hi-Z output with Level control fully clockwise.

Output Impedance:
• Hi-Z output: 7.5kΩ
• Balanced Line output: Less than 75Ω

Gain Control:
• 9.2dB - 30dB, Variable, Hi-Z output
• 15.2dB - 36dB, Variable, Balanced line output

Frequency Response: +0, -0.5, 20-20kHz, both outputs, low-capacitance cable

Noise: -75dBu

THD+N: Less than 0.01%

Tone Control: 200Hz & 1500Hz Peaking, 5kHz Shelving, continuously-variable boost/cut, +/-16dB range.

• Ratio: Varies from 2:1 to 20:1 depending on compressor control setting.
• Attack (fixed): Less than 5ms
• Release (fixed): 100ms average (frequency-dependent for natural envelope tracking)

Compressor Control (6 Switchable settings): 1 = subtle compression, 6 = maximum compression. Turning clockwise Increases gain reduction (lower threshold) while simultaneously raising output level to match.

Power Supply: +18VDC @ 650mA
Size: 8" x 5.5" x 4"
Weight: 4 lbs.

compressor knob sucks!!!0 of 0 customers found this review helpful

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Product ExperienceI own it
Closest StoreMississauga, Ontario
the compressor knob feels bit loose and flimsy. For this class and name( API)its a bit of shame. I wouldn't mind extra $ to cover for nice feel of the compressor knob. I do not know, maybe the sales guy at LMQ wanted to get rid of an abused demo pedal that I've bought at Toronto at Bloor&Ossington location. I do not know, soon I will get a bass version. I'll see and post here how the bass version compressor knob feels. Otherwise, an API name tells it all.....
Posted by rob on Mar 1, 2020
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