Ashly LX-308B manual Ch.8, Connections and Cables

Operating Manual - LX-308B Stereo Line/Microphone Mixer

	Ch.8			-L-	-R-		Stereo				Mono/Phones
					Clip		Output				Output
	4	5	6		+ 6			5			4	5	6
						4				6
3			7		0						3		7
						3				7
2			8		-6						2
						2				8
1			9		-12						1		9
						1				9
	L		R		-20		L			R	0		10
					Output
										Stereo
Mute					VU					Output
On	Level		Pan				Level		Pan Mute		Mono			Phones

LX308B

Stereo

Eight Channel

Line Level Mixer

On

Power

Ch.5

Ch.4

Ch.3

Ch.2

Ch.1

-L-

-R-

-L-

-R-

-L-

-R-

-L-

-R-

-L-

-R-

(Mo no )

(Mo no )

(Mo no )

(Mic/Mono)

(Mic/Mono)

6.CONNECTIONS AND CABLES

6.1Inputs

The LX -308B stereo inputs use two 20KΩ balanced 1/4" phone jacks per channel, with (+) signal on the tip, the (-) signal on the ring, and ground on the sleeve. If you wish to drive a mono source into the stereo mix, simply plug your signal into the right channel input. Channels 1 and 2 are switchable to add 30dB gain for low impedance dynamic microphones.

6.2 Sub Inputs

The Sub inputs are nominal 10KΩ unbalanced types on 1/4" phone jacks. They feed directly to the mix busses at a nominal +4dBu level and are useful for cou- pling multiple mixers

6.3 Sub Outputs

The Sub Outputs are unbalanced types on 1/4" phone jacks. Typically, they will feed sub inputs on ad- ditional mixers. Nominal operating level is +4 dBu.

6.4 Main Outputs

Outputs are 200Ω "pseudo-balanced" 1/4" phone jacks, which means they have balanced impedance with a single-ended signal source and can be wired balanced or unbalanced. Nominal operating level is +4 dBu and maxi- mum headroom is +22dBu.

6.5 Wiring Suggestions:

If low level and high level lines (e.g., micro- phones and mixer line outputs), or if either of these lines and speaker cables are run parallel for long distances, crosstalk may be significant. In fact, the crosstalk (sig- nal leakage between cables) can cause an electronic feed- back loop, oscillation, and possibly damage to the equipment. To minimize crosstalk, physically separate low level (microphone) cables from speaker cables by the greatest feasible distance. At any point where cables meet, run low level cables perpendicular to high level or speaker cables. If low and high level or speaker cables must be run parallel and in close proximity to one another, they should be bundled separately.

5