User's Manual
TECHNICAL SPECIFICATIONS Page 55/82
9 TECHNICAL SPECIFICATIONS
9.1 PS8 – LS400
9.1.1 System specifications
SYSTEM SPECIFICATIONS
PS8 with PS8 TDcontroller LSub 400 with PS8 TDcontroller
Frequency Response [a] 69 Hz - 19 kHz ±3dB 43 Hz - 120 Hz ±3dB
Usable Range @-6dB [a] 62 Hz – 20 kHz 40 Hz - 140 Hz
Sensitivity 1W @ 1m [b] 96 dB SPL Nominal - 94 dB SPL Wideband 99 dB SPL Nominal
Nominal Peak SPL @ 1m [b] 122 to 125dB Peak 128 to 131 dB Peak
HF Dispersion [c] 50° to 100° Hor. x 55° Vert. Rotatable Horn, 4 positions -
Directivity : Q & DI [c] Q : 10 Nominal DI : 10 dB Nominal ( f > 1.8 kHz ) -
Crossover Frequencies 2.5 kHz Passive 120 Hz Active through PS8TD
Nominal Impedance
8 Ω 6 Ω
Recommended Amplifiers
200 to 500 W / 8Ω 300 to 700 W / 4Ω
SYSTEM OPERATION
Electronic Controller The PS8 TDcontroller is precisely matched to the PS8 & LS400 cabinets and includes sophisticated protection
systems. Using PS8 & LS400 without a properly connected PS8TD will result in poor sound quality and can
damage the components. PS8 & LS400 can also be used with NXAMP4x1 and NXAMP4x4 Powered
TDControllers.
Dispersion configuration After dismounting the front grille from its fixings, the HF Horn can be rotated in 4 positions for dispersion
configuration.
Subbass The PS8 can be used without optional LS400 Subbass. Active two-way operation with the LS400 is included in
the PS8TD. One LS400 matches 2 x PS8, additional LS400 may be used for enhanced LF capability.
Speaker Cables PS8 are wired 2- & 2+ on Speakon connectors, LS400 on 1- & 1+. Loop through Speakons are present on both.
Single identical cables can thus be used to loop through combinations of up to 2 x PS8 & 1 x LS400 in no
particular order.
PRODUCT FEATURES
PS8 LSub 400
Components : LF [VLF]
HF
1 x 8" (20cm) Shielded Neodymium 8Ω driver
1 x 1" Shielded Neodymium throat driver + Low Distorsion,
Constant Directivity Asymetrical Dispersion Horn.
1 x 12" ( 30cm ) long excursion 6 Ohm driver
-
Height x Width x Depth 406 x 250 x 219 mm (16"x 9 7/8"x 5 5/8") 338 x 500 x 406 mm (13 1/4’’x 19 5/8’’x 16")
Weight : Net 7.5 kg (16.5 Lb) 19.5 kg (43 Lb)
Connectors 2 x NL4MP SPEAKON 4 pole 2 x NL4MP SPEAKON 4 pole
Construction Baltic Birch Ply finished with structured black coating Baltic Birch Ply & structured black coating
Fittings: Handles - 2 Metal Handles
Front finish Molded Dark Grey Metal Grill -
Flying Points & Fixed Installation Threaded inserts are fitted as standard to all cabinet surfaces
for connection of mounting accessories
-
Stand fittings Built in Stand Fitting, 35mm (1"3/8) Internal Stand Fitting on Top (35mm, 1"3/8)
allows pole mounting ofr 1 PS8.
As part of a policy of continual improvement, NEXO reserves the right to change specifications without notice.
[a] Response curves & data : Anechoïc Far Field for the PS8 + PS8TD. Half-Space Anechoïc radiation for the LS400 + PS8TD.
[b] Sensitivity & Peak SPL data : these will depend on spectral distribution and crest factor of program material. Measured with band limited Pink Noise. Nominal
refers to Voice Decade (300 Hz - 3 kHz), Wideband to the specified ±3dB range. Data are for speaker + processor + recommended amplifier combinations. Peak
SPL is at clipping of recommended amplifier.
[c] Directivity curves & data : obtained by computer treatment on off axis response curves.