• Amplifier Guide • Speaker Wire Gauge • Wireless Comparison Table • Calculating Wattage • Accessory Reference
Amplifier Selection Guide
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Inputs |
Outputs |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Model Number |
Power |
MIC |
AUX |
TEL |
70V |
25V |
Record/ |
Pre-Amp |
4Ω |
8Ω |
MOH |
Rack |
|
|
A-2060CU |
60W |
2 |
2 |
1 |
Yes |
Yes |
Yes |
Yes |
No |
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A-812D |
120W |
6 |
Opt. |
1 |
2 (900 |
Yes |
Yes |
Yes |
Yes |
Yes |
Opt. |
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|
A-903MK2 |
30W |
8 Module Slots |
8 (900 |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Opt. |
Opt. |
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|
A-9060DHM2 |
60W x 2 |
8 Module Slots |
8 (9000 |
Yes |
Yes |
3 Dual Module |
Yes |
Yes |
Yes |
Yes |
Yes |
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|
AV-20D |
20Wx2 |
3 |
|
Yes |
Yes |
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BA-235 |
35W |
1 |
Yes |
Yes |
Yes |
Yes |
Yes |
Opt. |
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BG-220 |
20W |
1 |
2 |
Yes |
Yes |
Yes |
Yes |
Yes |
Opt. |
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BG-2035 |
35W |
1 |
2 |
1 |
1 (900 |
Yes |
Yes
|
Yes |
Yes
|
Yes |
Opt. |
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CA-115 |
15W |
2 |
|
Yes |
Yes |
No |
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DA-150EH |
See DA |
4 |
|
Yes |
Yes |
Yes |
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MA-725F-AM |
250W x 4 |
2 |
4 |
Yes |
Yes |
|
Yes |
Yes |
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P-906MK2 |
60W |
1 |
1 (900 |
Yes |
Yes |
Yes |
Yes |
Opt. |
Opt. |
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|
P-9060DH |
60W x 2 120Wx2 |
2 |
Yes |
Yes |
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*Transformer-Isolation for Telephone Paging Applications (Input #1)
** Selectable
|
DA AMPLIFIER POWER OUTPUT CHART |
|
|
MODEL |
POWER OUTPUT |
|
DA-150EH |
8 X 150W (70V) |
|
DA-250D |
2 X 250W (4Ω) |
|
DA-250DH |
2 X 250W (70V) |
|
DA-250F |
4 X 250W (4Ω) |
|
DA-250FH |
4 X 250W (70V) |
|
DA-500F HL |
4 X 250W (70V) |
|
DA-550F |
4 X 550W (4Ω) |
Maximum length of speaker wire for a 70 Volt line
|
Power Loss in Cable (%Loss & dB Loss) |
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|---|---|---|---|---|---|---|---|---|---|
|
4Ω Speaker |
8Ω Speaker |
70V Speaker* |
|||||||
|
11% |
21% |
50% |
11% |
21% |
50% |
11% |
21% |
50% |
|
|
AWG |
0.5 |
1.0 |
3.0 |
0.5 |
1.0 |
3.0 |
0.5 |
1.0 |
3.0 |
|
6 |
277ft |
571ft |
1930ft |
554ft |
1141ft |
3859ft |
13580ft |
27965ft |
945848ft |
|
8 |
174ft |
359ft |
1214ft |
349ft |
718ft |
2428ft |
8546ft |
17598ft |
59498ft |
|
10 |
110ft |
226ft |
764ft |
219ft |
452ft |
1528ft |
5377ft |
11072ft |
37434ft |
|
12 |
69ft |
142ft |
480ft |
138ft |
284ft |
959ft |
3376ft |
6952ft |
23505ft |
|
14 |
43ft |
89ft |
302ft |
87ft |
179ft |
604ft |
2127ft |
4380ft |
14809ft |
|
16 |
27ft |
55ft |
185ft |
53ft |
110ft |
371ft |
1305ft |
2687ft |
9085ft |
|
18 |
17ft |
35ft |
117ft |
34ft |
69ft |
234ft |
823ft |
1694ft |
5726ft |
|
20 |
11ft |
22ft |
74ft |
21ft |
44ft |
147ft |
518ft |
1068ft |
3610ft |
|
22 |
7ft |
13ft |
46ft |
13ft |
27ft |
91ft |
321ft |
661ft |
2234ft |
|
24 |
4ft |
9ft |
29ft |
8ft |
17ft |
57ft |
202ft |
417ft |
1409ft |
*The maximum length of speaker wire for a 70V line depends on the gauge of wire being used. Below you
will find a chart with different gauges and their maximum length for use in a 70V system.
Wireless Comparison Table
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|
|
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|
|
|
WT-5800 |
WT-5805 |
WT-5810 |
WT-4820 |
S5.3 |
S4.10 |
S2.4 |
|
|
UHF 5000 Series |
UHF S Series |
Digital S Series |
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|
Wireless Kits |
Build the system |
Build the system |
WS-5225 (RX / TX HH / Uni) |
Build the system |
S5.3-HD (RX / TX HH / Dyn) |
S4.10-HD (RX / TX HH / Dyn) |
S2.4BBX (RX2 / TX BP x 2) |
|
System Tuners |
WT-5800 (RX) |
WT-5805 (RX) |
WT-5810 (RX) |
WT-4820* (RX) |
S5.3 (RX) |
S4.10 (RX) |
S2.4 (RX1) S2.4 (RX2) |
|
System Components |
WM-5225 (TX HH / Uni |
WM-5225 (TX HH / Uni |
WM-5225 (TX HH / Uni |
WM-5225 (TX HH / Uni |
S5.3-HDX (TX HH / Dyn) |
S4.10-BTX (BP / Lav) |
S2.4HDX (TX, HH) |
|
System Accessories |
YW-4500 (Antenna) |
YW-4500 (Antenna) |
BC-5000-2 (Chrgr) |
WTU-4800 (Module) |
YW-4500 (Antenna) |
YW-4500 (Antenna) |
RX2 (Brkt included) |
|
Channel Selectable |
64 selectable frequencies |
64 selectable frequencies |
Up to 16 selectable frequencies |
Up to 16 selectable frequencies |
Up to 12 selectable frequencies |
Up to 16 selectable frequencies |
Up to 16 selectable frequencies |
|
Price |
$$$$ |
$$$$ |
$$$ |
$$ |
$$$$$ |
$ |
$$ |
|
Receiving Frequency |
M Band: 506 - 538 MHz H Band: 576 - 606 MHz |
M Band: 506 - 538 MHz H Band: 576 - 606 MHz |
M Band: 506 - 538 MHz H Band: 576 - 606 MHz |
M Band: 506 - 538 MHz H Band: 576 - 606 MHz |
H Band: 576 - 606 MHz |
M Band: 506 - 538 MHz |
2.404-2.474 GHz |
|
Power Source |
AC mains (supplied AC adapter must be used) |
AC mains (supplied AC adapter must be used) |
AC mains (supplied AC adapter must be used) |
AC mains (supplied AC adapter must be used) |
230 V AC, 50 Hz (optional AC adapter must be used) |
11-18 VDC 300 mA |
12VDC 0.5A |
|
Diversity System |
True diversity |
Space diversity |
Space diversity |
Space diversity (WTU-4800) |
Space diversity (true diversity) |
Space diversity |
N/A |
|
Power Consumption |
200 mA (12 V DC) |
250 mA (12 V DC) |
130 mA (12 V DC) |
250 mA (12 V DC, when operating with two tuner modules*) |
300 mA (13 V DC) |
N/A |
2W |
|
Receiving Sensitivity |
90 dB or more, Signal to Noise ratio (20 dBμV input, 40 kHz deviation) |
90 dB or more, Signal to Noise ratio (20 dBμV input, 40 kHz deviation) |
90 dB or more, Signal to Noise ratio (20 dBμV input, 40 kHz deviation) |
80 dB or more (WTU-4800) |
0 dBµV or less (12 dB SINAD) |
10uV at 45 dBA S/N |
-80dBm |
|
Squelch Sensitivity |
16 - 40 dBμV variable |
16 - 40 dBμV variable |
16 - 40 dBμV variable |
18 dBµV (WTU-4800) |
6 - 36 dBµV variable |
N/A |
N/A |
|
Receiving System |
Double super-heterodyne |
Double super-heterodyne |
Double super-heterodyne |
N/A |
Double super-heterodyne |
N/A |
N/A |
|
Mixing Output |
MIC/LINE (selectable): -60 dB (MIC)/-20 dB (LINE), 600 Ω, phone jack (unbalanced), 600 Ω XLR-3-32 type connector (balanced) |
MIC/LINE (selectable): -60 dB (MIC)/-20 dB (LINE), 600 Ω, phone jack (unbalanced), 600 Ω XLR-3-32 type connector (balanced) |
MIC: -60 dB, 600 Ω, balanced, XLR-3- 32 type connector, LINE: -20 dB, 600 Ω, unbalanced, phone jack |
Mixing/Channel 1 (selectable): -20 dB (+6 dB) Max.), 600 Ω, unbalanced, phone jack, - 14 dB (+12 dB Max.) 600 Ω, balanced, XLR-3-32 type connector Channel 2: -20 dB (+6 dB Max.), 600 Ω, unbalanced, phone jack |
LINE: -22 dB/MIC: -62 dB - 28 dB*, 600 0, unbalanced, phone jack LINE/MIC selectable, 600 0, balanced, XLR-3-32 type connector Headphone: max. 100 mW 16 0, unbalanced, phone jack |
Balanced (XLR socket): -16 dB Unbalanced (1/4" jack socket) : 10 dBu |
20 dB (LINE), 600 Ω, phone jack (unbalanced), 600 Ω XLR3-32 type connector (balanced) |
|
Mixing Input |
-20 dB, 10 kΩ, unbalanced, phone jack |
-20 dB, 10 kΩ, unbalanced, phone jack |
-20 dB, 10 kΩ, unbalanced, phone jack |
-20 dB, 10 kΩ, unbalanced, phone jack |
N/A |
N/A |
N/A |
|
Antenna |
Whip antenna x2 |
Whip antenna x2 |
Rod antenna x2 |
Whip antenna x2 |
Whip antenna x2 |
Whip antenna x2 |
Whip antenna x2 |
|
Antenna Input |
75 Ω, BNC (phantom powering for antenna), |
75 Ω, BNC (phantom powering for antenna), |
N/A |
75 Ω, BNC (phantom powering for antenna), |
50 Ω, BNC |
N/A |
N/A |
|
Antenna Output |
75 Ω, BNC (Gain 0 dB) |
N/A |
N/A |
75 Ω, BNC (Gain 0 dB) |
N/A |
N/A |
N/A |
|
Squelch System |
Tone SQ, Carrier SQ, Noise SQ |
Tone SQ, Carrier SQ, Noise SQ |
Tone SQ, Carrier SQ, Noise SQ |
N/A |
Tone SQ, Carrier SQ, Noise SQ |
Tone SQ, Carrier SQ, Noise SQ |
N/A |
|
Tone Frequency |
32.768 kHz |
32.768 kHz |
32.768 kHz |
N/A |
32.768 kHz |
N/A |
N/A |
|
Indicator |
Audio (6 step), RF (6 step), ANT A/B, Audio (peak), Battery alarm |
Audio (6 step), RF (6 step), ANT A/B, Audio (peak), Battery alarm |
ANT A/B, Audio (peak), Battery alarm, Channel number |
ANT A/B, Audio (peak), Power L |
LCD, Power lamp, Mute lamp, ANT A/B lamp |
N/A |
LCD |
|
Model Feature |
N/A |
N/A |
N/A |
*Accepts up to two WTU-4800 Tuner Units |
N/A |
N/A |
*Single or Dual receiver |
|
Channel Check |
Usable frequencies scanning |
Usable frequencies scanning |
Usable frequencies scanning |
N/A |
N/A |
N/A |
N/A |
|
Signal to Noise Ratio |
110 dB or more (A-weight, unbalanced output) |
110 dB or more (A-weight, unbalanced output) |
104 dB or more (A-weight, unbalanced output) |
102 dB or more (A-weight, unbalanced output) |
110 dB or more ( A-weight) |
N/A |
>95dB |
|
Harmonic Distortion |
1 % or less (typical) |
1 % or less (typical) |
1 % or less (typical) |
1 % or less (typical) |
1 % or less (typical) |
1 % or less (typical) |
1 % or less (typical) |
|
Frequency Response |
100 Hz - 15 kHz, ±3 dB |
100 Hz - 15 kHz, ±3 dB |
100 Hz - 15 kHz, ±3 dB |
50 Hz - 18 kHz, ±3 dB |
50 Hz - 20 kHz, ±3 dB |
50 Hz - 15 kHz |
N/A |
|
LCD Display |
Two-line LCD display |
Two-line LCD display |
ANT A/B, Audio (peak), Battery alarm, Channel number |
ANT A/B, Audio (peak), Power |
Two-line LCD display |
ANT A/B, Audio (peak), Channel number |
ANT A/B, Audio (peak), Channel number, Frequency |
|
Included |
AC adapter x1, Whip antenna x2, Rubber foot x 4 |
AC adapter x1, Whip antenna x2, Rubber foot x 4 |
AC adapter x1 |
AC adapter x1, Whip antenna x2, Rubber foot x 4 |
CD ( PC Monitoring Software) x1 |
AC Adapter x 1, Microphone Holder W5/16" x 1 |
N/A |
|
Rack Ears |
Mounting bracket kit: MB-WT3 single MB-WT4 dual |
Mounting bracket kit: MB-WT3 single MB-WT4 dual |
N/A |
Mounting bracket kit: MB-WT3 single MB-WT4 dual |
MB-15B-BK – single receiver; MB-15B-J - two receivers |
19" Rack Mount Kit: MB-S4RX-5- EB |
ACC-S2.4 Rack Mount Kit |
|
Finish |
Resin, black |
Resin, black |
Resin, black |
Resin, black |
Chassis: Steel, dark gray, painting Front panel: Anodized aluminum, silver |
Resin, coating |
Resin, black |
|
Dimensions |
210 (W) × 44 (H) × 205.1 (D) mm |
210 (W) × 44 (H) × 205.1 (D) mm |
206 (W) × 40.6 (H) × 152.7 (D) mm |
210 (W) × 44 (H) × 181 (D) mm |
210 (W) X 46 (H) X 210 (D) mm |
215 (W) x 39 (H) x 102 (D) mm |
213 (W) X 41.9 (H) X 133.3 (D) mm |
|
Weight |
700 g (1.54 lb.) |
700 g (1.54 lb.) |
590 g (1.3 lb.) |
770 g (1.71 lb.) |
1.3 kg. (2.87 lb.) |
480g (1.1 lb.) |
Single: 1.4 kg (3.1 lb.) |
Technical Information
Calculating Wattage Required |
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|---|---|---|---|
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It is fairly easy to calculate the on axis amount of power required to a speaker if we understand and apply a few basic principles. |
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Sensitivity |
Power Increase vs SPL |
Loss of Sound Pressure over Distance |
Typical Sound Levels |
|
This rating given to all speakers indicates how efficient it is at converting power (wattage) into sound. This rating is expressed as Sens dB= 1 watt / 1 meter. Typical ratings are 90dB for 1 watt at 1 meter distance. What this implies is that if one watt of power is delivered to the speaker, the speaker will produce 90dB of sound pressure at a one meter distance from the speaker.
This distance is our reference distance. Of interest for ceiling speakers, the reference distance is approximately ½ meter from a person seated in an office with a typical ceiling height of 2.6 meters (8.5 feet). Therefore, in general, one or two watts is all that is needed in a typical office or training room scenario with a normal ceiling height of 8–9 feet. |
When we increase the power delivered to the speaker, the amount of sound pressure, measured in dB, will also increase. The rate of increase for a standard speaker in free space is 3 dB for every doubling of power.
Speaker example above has a Sensitivity rating of 90dB=1W/1M, one watt would produce 90dB at reference. If we increase the wattage to 2 watts (doubled) our speaker would produce 93dB at reference. Doubling this again to 4 watts would produce 96dB at reference |
Our typical speaker above will have a perceived loss of sound pressure level as we move away from the speaker. For a free space environment this loss occurs at 6dB for every doubling of distance. As an example, our speaker above is driven with 8 watts of power. Since the speaker has a sensitivity of
90dB/1W/1M, at reference this speaker will be producing 99dB. So one meter away from the speaker (reference) there is 99dB of sound and as we double this reference distance away from the speaker, the sound pressure will decrease. At 2 meters SPL= 93dB, 4 meters SPL=87dB, 8 meters SPL=81dB. |
Busy traffic at 10 meters ~ 80-90dB Office ~ 50dB Normal conversation ~ 40-60dB
|
Having this information makes it relatively easy to estimate how much power is required per speaker for a given listening distance. No wasted amplifier power, and no complicated math is required.
Accessory Guide
Click image to view.
Find the correct accessory to enhance the performance and installation of TOA equipment.
For more information on TOA products, check out the TOA Data Library.
