Related Manuals for Summit Audio 2BA-221
Summary of Contents for Summit Audio 2BA-221
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Page 1: Operation Manual
Summit Audio Model 2BA-221 Microphone Preamp and Line Module Operation Manual Summit Audio, Inc. P .O. Box 223306 Carmel, CA 93922 (831) 728-1302 email: sound@summitaudio.com... - Page 2 Its swept high pass filter, multiple simultaneous 2BA-221 is manufac- tube and solid state outputs, insert jack, and internal power ture for the voltage supply makes the 2BA-221 a powerful tracking and mixing used in your country. tool. This is done at the factory ONLY.
- Page 3 Introduction Carefully unpack the 2BA-221 and it’s power cord. Save the carton and packing material for possible future use. Before powering up the unit, read this manual and observe the cau- tions for HIGH VOLTAGE. Important Warranty Information For your 3 year warranty, register your 2BA-221 on line today at www.summitaudio.com.
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Page 4: Front Panel
• Red - - - Signal is at the threshold of Clipping. Set the input gain controls so that the red LED only lights occasionally. The green and amber LEDs should be on most of the time. Summit Audio, Inc. - Page 5 This knob controls the loading or impedance for the micro- phone input. The input can be set from 100 ohms to 10K ohms. You can set this control to match the 2BA-221 to the impedance of your microphone or as a "tone" control. Try sweeping the impedance control to hear the different sounds available from a single microphone.
- Page 6 20Hz to 200Hz. The highpass filter is used to remove low frequency rumble from the mic input. Important - Please Read! The 2BA-221 contains a vacuum tube which generates heat. Do not block the cooling holes on the top of the 2BA-221 and always allow adequate ventilation when mounting the unit in a rack enclosure.
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Page 7: Rear Panel
-10 BAL. INSERT SUMMITAUDIO.COM A.C. Receptacle The 2BA-221 is factory wired for either 100, 115 or 230 Volts AC. Before connecting AC power make sure the 2BA-221 is wired for the voltage used in your country. +4 Balanced Output Note: You can use all... - Page 8 Connect the Stacking Output Signal is sent out on tip of plug and to the Stacking Input of another 2BA-221 to add additional returned via ring of plug. input channels. See the diagram below. This jack can also be When using the insert used as an additional output (phase inverted from input).
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Page 9: Basic Operation
Important: For proper operation of the Plug your favorite microphone into the rear panel Mic Input 2BA-221 (or any vacuum jack, plug your instrument into the front panel Hi-Z Input, or tube device for that your line level device such as a CD player into the rear panel matter), allow the unit to Line Input jack. - Page 10 Applications Applications Amp & Direct Sound The 2BA-221 in conjunction with the Summit TD-100 provides you with a direct box and a mic preamp. This setup allows you to mix the sound of your guitar or bass amp with the direct sound of your instrument and sounds fantastic in both live or recording situations.
- Page 11 Acoustic guitars and other instruments are often bi-amplified because of the superior sound reproduction obtained from using two transducers. The 2BA-221 is perfect for the job. Connect the pickup output of your acoustic instrument to the Tip: You could also use...
- Page 12 1/4” phone plug such as the one described on page 8. Connect the two units with the insert cable as shown below. Adjust the input level on the 2BA-221 to get a proper signal level into the TLA-50. The tube output gain control on the 2BA-221 functions as a “gain makeup”...
- Page 13 Turn up the Tube Output control for more tube sound, use the Solid State input gain for a cleaner sound. To distort the 2BA-221, turn the Tube Output up to 2-3 o’clock and adjust the solid state Hi-Z input gain to get a good level. Adjust the solid state and tube output controls to get the desired amount of distortion.
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Page 14: Block Diagram
Stage Peak Meters The Impedance control of the 2BA-221 sets the input impedance of the microphone input. The Pad reduces the input level by -20 dB. The microphone input is next amplified by the solid-state preamp before being summed together with the Hi-Z input, line level input and the stacking input. - Page 15 Block Diagram The summing amplifier drives the Stack Output, which is designed to feed the Stack Input of another 2BA-221. This signal is also sent to the Insert jack output, which can be used to insert another device, such as a compressor before the tube stage.
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Page 16: Electrical Connections
Balanced 3-pin XLR Sleeve - - Ground Pin 1 - - Ground Tip - - - - (+) Signal Pin 2 - - (+) Signal Ring - - - -(-) Signal Pin 3 - - (-) Signal Summit Audio, Inc. -
Page 17: Specifications
Dimensions W: 8.5”, H: 1.75”, D: 8.5” (Two units fit side by side on a standard one-space rack shelf.) Weight 7 pounds (3.15 kg) Audio Specs For current audio specifications please contact Summit Audio at www.summitaudio.com. Model 2BA-221 Microphone Preamplifier... - Page 18 CD-11H D440 Audio-Technica ATR30 Audix CD-21 D550 Audio-Technica ATR50 Audix F-50 C418 Audio-Technica ES973 Audix SCX1 C419 Audio-Technica MB1000 Audix SCX25 Audio-Technica MB1000 Blue Dragonfly C426 Audio-Technica MB3000 Blue Bottle Audio-Technica AT3031 Audio-Technica MB4000 Blue Bottle Baby Summit Audio, Inc.
- Page 19 Studio Project Earthworks TC30K Royer R121 Studio Project Electrovoice Royer R122 Studio Project Cobalt Royer SF12 Cobalt Royer Cobalt Sennheiser MD421 Cobalt Evolution E602 Cobalt Co11 Evolution E602 N/DYM N/D167 Evolution E604 N/DYM N/D267 Evolution E608 Model 2BA-221 Microphone Preamplifier...
- Page 20 Summit Audio, Inc. P .O. Box 223306 Carmel, CA 93922 web page: www.summitaudio.com email: sound@summitaudio.com Please register on-line today at www.summitaudio.com. Thanks. 2BA-221 Op Rev. A...
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