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Активный сабвуфер
PSD 218
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Dynacord PSD 218 [5/32] Introduction

PSD 215 | 218

1 Introduction

The PSD 215 and PSD 218 are high-performance powered

subwoofers designed to simplify creating active 2-way sys-

tems. They use an integrated 2-channel digital power am-

plifier with internal 24-bit 1-into-3 DSP controller to

optimize the sound quality and protect the subwoofer and

full range system used with it. Examples for such systems

are combinations of PSD subwoofers with full-range D-Li-

te, Corus and VariLine and the new TS 400 array cabinet.

Both models are vented direct-radiators exhibiting out-

standing transient response and capable of delivering very

high sound pressure levels. The enclosures are made from

well braced 15 mm Baltic birch plywood with a protective

coating capable of withstanding the rigors of use on the

road. Recessed handles are ergonomically shaped to en-

sure easy transportation and setting-up – tasks further fa-

cilitated by the tour grade castors. A recessed stand

adaptor with an M20 thread is provided on the top of the

enclosure for the pole-mounting of full-range systems. The

horizontal format of the enclosure allows placement be-

neath the stage or provides an exceptionally stable base

for pole-mount speakers.

The PSD 215 is equipped with a 15" Electro-Voice

DVX3159 woofer specially developed for use in compact

subwoofers. It sets a new standard for minimum size and

maximum acoustic output, while maintaining impressive

deep bass high sound pressure levels.

The PSD 218 with an 18" Electro-Voice DVX3180 long-ex-

cursion woofer delivers the performance demanded of 18"

subwoofers in professional concert sound applications. It

produces extended low frequency response from a com-

pact enclosure with plenty of punch.

Both models use a highly efficient Class D technology am-

plifier and a microprocessor-controlled switched-mode

power supply to deliver 2 x 1000 watts RMS into 4 ohms

for highest quality audio performance. All DYNACORD

power amplifiers are capable of withstanding the most ex-

treme rigors of touring, they are protected against over-

heating, overload, short circuit, back EMF and open-circuit

operation as well as HF or DC at the output. Thermal sta-

bility is assured by an extremely quiet continuously vari-

able speed fan. PROTECT and LIMIT LEDs indicate the

current operating status of the power amplifiers.

The integrated 24-bit digital controller with internal 48-bit

double-precision resolution exhibits a 1-into-3 topology:

SUB channel, TOP channel and an additional DSP Out. The

stored factory presets are optimized for combinations with

DYNACORD fullrange cabinetts. Generic presets for other

combinations and special programs for cardioid and bass

arrays are also provided. The system-alignment-delay, the

polarity and naturally also the level can be edited by the us-

er. The System EQ allows adjustments to be made for the

acoustics of the room. The DSP Out also offers an adjust-

able delay, high-pass and shelving equalizer as well as a

level control. It is therefore ideally adapted, among other

things, to the use of an active delay box. Signal generators

with sine, pink noise or spike pulses are integrated to facil-

itate tuning the PA and the setting of delay times. In all, 25

program locations are provided (20 factory presets + 5

user memories). All three channels are equipped with

state-of-the-art look-ahead peak anticipation limiters, the

SUB channel also includes a Thermal Energy Management

and Protection (TEMP) limiter. The TEMP limiter provides

thermal protection for the transducer.

1.1 Scope of Delivery, Unpacking and

Inspection

Carefully open the packaging and take out the cabinet. In-

spect the cabinet’s enclosure for damages that might have

occured during transportation. Each cabinet is examined

and tested in detail before leaving the manufacturing site

to ensure that it arrives in perfect condition at your place.

Please inform the transport company immediately if the

cabinet shows any damage. Being the addressee, you are

the only person who can claim damages in transit. Keep

the cardboard box and all packaging materials for inspec-

tion by the transport company.

Keeping the cardboard box including all packing materials

is also recommended, if the cabinet shows no external

damages.

HINT: Do not ship the cabinet in any other than its orig-

inal packaging.

Packing the cabinet like it was packed by the manufacturer

guarantees optimum protection from transport damage.

1.2 Warranty

Visit www.dynacord.com for warranty information.

1.3 HF-Interference

This equipment has been tested and found to comply with

the limits for a Class B digital device, pursuant to Part 15

of the FCC Rules. These limits are designed to provide rea-

sonable protection agains harmful interference in a resi-

dential installation. This equipment generates, uses and

can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, may cause harm-

ful interference to radio communications. However, there

is no guarantee that interference will not occur in a partic-

ular installation. If this equipment does cause harmful in-

terference to radio or televsion reception, which can be

determined by turning the equipment off and on, the user

is encouraged to try to correct the interference by one or

more of the following measures:

•1 Active Subwoofer

• 1 Owner‘s Manual (this document)

• 1 Mains Cord (lockable)

• 1 Warranty Certificate including Safety Instructions

• Reorient or relocate the receiving antenna

• Increase the separation between the equipment and receiver

• Connect the equipment into an outlet on a circuit different from that

to which the receiver is connected

• Consult the dealer or an experienced radio/TV technician for help

Dynacord PSD 218 [5/32] Introduction

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