Get Direct Instrument Availability for Your Pickups and Reduce Low End "Mud" With the API 505-DI Discrete Direct Instrument Input Like the console-based API 205L, the 505-DI is specifically designed to accept a guitar, bass or keyboard direct input while minimizing any loading effect on Hi-Z instrument pickups. Additionally, the 505-DI's Gain Control is used to normalize an instrument's input level, up to a +4 dBu output level. API's unique TONE control reduces potential low end "mud" in the signal, while turning on the BRIGHT switch adds additional clarity if desired. The various combinations of TONE and BRIGHT controls can eliminate the need for any EQ on the instrument while recording, keeping the signal path short and pure. This minimal signal path eliminates the need to use a standard direct box, which many times still requires a mic input, equalizer, and a fader to get the signal to a recordable level. The 505-DI is capable of boosting any instrument to a hefty line level without additional amplifiers. Use of the 100K / 400K LOAD switch allows the tone of the pickup to be altered slightly, alternately brightening or darkening the high frequency content. When inserting an instrument with an internal preamp or a line level instrument such as a sampler or a keyboard, the 505-DI offers a 20 dB PAD switch to drop the level without loading, thereby retaining the integrity of the incoming signal. Wide Range Gain Control with 55dB of gain Front Panel Hi-Z Input Front Panel Thru routing TONE Control helps customize your sound BRIGHT Switch boosts clarity and presence 10 segment LED VU meter for monitoring output level Peak Output LED Indicator 20 dB pad switch 100K / 400K Switchable Load Traditional API fully discrete circuit design Uses the famous API 2520 and 2510 Op-Amps SPECIFICATIONS Number of Bands: Two Filter Type: Passive Shelf Filter Frequency Centers: 150 Hz Low, 8 kHz High Input Impedance: less than 380 K Ohms, Un-Balanced Output Impedance: 75 Ohms, Transformer coupled, Balanced Nominal Levels: -40 dBu to +20 dBu Clipping Level: +30 dBu Frequency Response: 0, -.4, 30 to 20 kHz Noise: 98 dB below +10 dBm output, unweighted. 20 - 20 kHz THD: .01% (+4 dB @ 2 K) Connector: 15 position .156 sp edge connector Power Consumption: ±16 Volts DC, 130mA max at +24 dBu out Manufacturer: Automated Processes IncModel: 505 DISKU: I384060-N-0-WHXBWe are Chuck Levin's Washington Music CenterSince 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.