Overview
The MX-508 is an eight-input stereo rackmountable mixer. Designed for a multitude of applications, the MX-508 has an extensive mix of features for a small unit combined with excellent sound and quiet performance.
The MX-508 features 84 dB of gain to ensure full output with low-level or distant microphones. Several years of research went into the microphone preamp and the result is a discrete circuit with better than -129 dBu Equivalent Input Noise (EIN) and very low distortion. Low and High Shelving EQ combined with mid-band peaking EQ tunable from 140Hz and 8 kHz make for a very flexible tone control. Phantom power of +48 VDC is provided for condenser microphones via a switch on the front panel. Precision input transformers are easily field-installable, and each input has its own 20dB pad switch. Variable gain trim and Mic/Line selection switches are also found on each input channel. Rounding out the list of standard input features are a Peak Clip indicator, two Aux Sends (factory-set with one pre-EQ and level and the other post-EQ and level, these sends may be modified by a qualified technician), In/Out channel patching, Level and Pan controls, and both balanced XLR Microphone and TRS Line inputs.
Transformer-balanced Left and Right XLR outputs are standard, as are balanced Left and Right TRS 1/4" outs. There is also an independent Mono output with its own front panel level control, as well as a selectable Headphone output with Level Control. There are Pre-Master Sub In/Out patch points for linking other mixers, such as the Ashly MM-106 six-input microphone mixer. Peak Clip indicators are also provided for the Outputs, and the 10-Segment LED Meters may be selected to monitor either Program Left and Right or Aux 1 and 2. Maximum output level is +24dB into 600 ohms.
The MX-508 also has two Master Aux Sends and two panable Master Aux Returns (one stereo and the other mono). There is an additional stereo RCA Tape/CD Input with level control to the Mains or Aux 1. Stereo RCA Tape Outputs are also provided. The MX-508 combines traditional Ashly quality with internally modular construction in a package offering outstanding value and reliability. As with all Ashly products, the MX-508 is backed by the Company's exclusive Five Year Worry-Free Warranty.
Features
- High-gain microphone preamps with very low noise and distortion
- Three-band input equalizers with tunable mid-range
- 48 Volt phantom power for use with any condenser microphones
Specifications
| TOTAL HARMONIC DISTORTION | less than 0.05 % @ +4 dBu, 20 Hz-20 KHz. less than 0.05 % @ +20 dBu, 30 Hz-10 KHz. | |
| INTERMODULATION DISTORTION (SMPTE) | less than 0.05 % @ +20 dBu. | |
| HUM & NOISE (20 Hz-20 KHz noise bandwidth) | -128 dBu equivalent input hum and noise. -127 dBu equivalent input hum and noise w/transformer option. -90 dBu output noise; TRS outputs, level controls at min. -85 dBu output noise; XLR outputs. -75 dBu MASTER LEVEL at nominal, all CH. LEVEL controls at min. -67 dBu MASTER LEVEL and one CH. LEVEL at nom. -75 dBu AUX 1 or 2 OUT; AUX MASTER nominal and AUX levels at min. -67 dBu AUX 1 or 2 OUT; AUX MASTER and one CH. AUX at nom. | |
| MAXIMUM VOLTAGE GAIN | Master: 84dB MIC INPUT to MASTER OUTPUT, 600 ohm load. 44dB LINE INPUT to MASTER OUTPUT, 600 ohm load. Aux Sends: 84dB MIC INPUT to AUX MASTER 1 OUT, pre ch. level. 90dB MIC INPUT to AUX MASTER 2 OUT, post ch. level. Sub Ins | 12dB SUB INPUT to MASTER OUTPUT. Aux Returns: 34dB RETURN 1 or RETURN 2 to MASTER OUTPUT. Tape/CD In: 35dB TAPE/CD INPUT to MASTER OUTPUT. |
| FREQUENCY RESPONSE | +0/-1.5 dB 20 Hz to 20 KHz. +0/-0.5 dB 50 Hz to 10 KHz. | |
| EQUALIZATION | Low +/-12dB at 70 Hz, shelving. Mid +/-12dB peaking, 140 Hz-8 KHz. High +/-12dB at 15 KHz, shelving. | |
| CROSSTALK | -65 dB, adjacent inputs, 20 Hz-20 KHz. -65 dB, MIC INPUT to MASTER OUTPUT at 1 KHz. -55 dB, MIC INPUT to MASTER OUTPUT at 20 KHz. | |
| VU METERS | Two 10-segment LED meters, L/R or SEND 1/2 selectable. 0 VU = + 4dBu. | |
| PEAK INDICATORS | Peak CLIP indicator on each input channel and left and right outputs, illuminates 3 dB below clipping. | |
| PHANTOM POWER | + 48 VDC applied to all MIC INPUTS, switchable on front panel. Gradual power-up and down to eliminate 3pops.2 | |
| DIMENSIONS | 19" wide x 5.25" high x 9.6" deep. | |
| SHIPPING WEIGHT | 15 lbs. maximum with 8 input transformer options. | |
| POWER REQUIREMENTS | 120 VAC nominal, 50-60 Hz, 35 watts. 93 VAC minimum (240 VAC available) |
