Parasound 2250 V.2 manuale d’uso

Model 2250 v.2 Tw o Chann el A mplifie r OWNER’ S GUIDE[...]

2 Important Safet y Instruct ions The li g htning flash w ith the arrowh ead s y m bol with in an equ ilate ral triang le is intende d to a lert the user to the prese nce of ―dange rous vo ltage ‖ inside the produ ct th at may cons titute a risk of ele ctric sho ck. The excla m a tion poi nt with in an e quilate ral tr iangle i s intende d to a[...]

3 Table of Cont ents Introduction .................................................. 4 Placement and Ventilation Guidelines .............................. 5 Rack Mounting ................................................ 5 AC Main s Voltage ............................................. 6 Rear Panel Connections and C on trols ........................[...]

4 INTRODUCTIO N Thank You for Choos ing Paras ound Yo ur ne w Para sound Model 2250 v .2 pow er am p lifi er has bee n designed w it h pro v en clas s AB ampli fi er techno l ogy. The Mode l 2250 v. 2 i s built to extreme ly str ict qual it y and per f ormance s tandards f or which Paras ound is ren ow ned . W e’re proud to o ffer you this except[...]

5 Unpacking Your M odel 2 250 v.2 & Placement Guidelines Unpacking You r Model 2250 v.2 Carefu l ly re move you r Model 2250 v.2 fro m its s hipping carton an d locate the enclos ed acces s orie s : • AC pow er cord • Two 12 V DC trigger w ires w ith mono p lugs, one with 3.5 mm (1/8‖) min i p lugs , one w it h a 2.5 mm su b-mi n i p lug [...]

6 AC Mains Voltag e NOTE: Be fore you plu g this am plifier into an AC ma ins outle t : 115v - 230v A C Volt age Selector Sw itch This s witch is f ound on the chass i s rea r panel. The 115V po sition of this sw i tch is correct for North America ; most other regions require s etting it to 23 0V. Make s ure the 115 /230V s w it ch is s et for the [...]

7 R (Ri ght) and L (Left) Level Knobs To increas e the listening level f or each chan nel, turn its Le v e l knob clockw i se. To decreas e t he li s tening l e vel turn i t co unter-c lockwise . The 2250 has a total gain of 28 dB so tha t its vo lume le v els are compatib le with o ther chann els in you r theater if they ar e driven by a THX-certi[...]

8 Speaker C onnections Speaker Term inals There are sepa rate sp eaker terminals f or two pairs o f sp eakers , l abe led Speaker Pa i r A and Speaker Pair B. T he s peake r termina ls accep t spea ker w ires with ban ana plugs , sp ade conn ectors or bare w ire. Correct Speak er Polarit y is Im portant Polarity refers to + and – conn ections. Sp[...]

9 How to set the Speaker Load switch wh en the Model 22 5 0 v.2 is configured for Bridged Mono operation: Singl e 8 Ohm Speaker In this case the Speaker Lo ad sw itch shou ld be set to 4-8 Ω . Singl e 4 or 6 Ohm Sp eaker In this case the Speaker Lo ad sw itch m us t be set to 2-3 Ω . Two 8 Ohm Spe akers In this case the Speaker Lo ad sw itch m [...]

10 Turn On Options Switch For con venience, there are t hree wa ys the Mod el 2250 v.2 can be turn ed on and off: • Ma nually , by pre ss i ng the Pow er button on the f ron t pan el. • A utomatically by Audi o , wh en an au dio signal is pre s ent at the audio Inp ut jacks . • A utomatically by 12V , whe n a su it able trigg er voltag e is a[...]

11 12 Volt I nput Jacks The Mode l 2250 v. 2 12V input use s a 3.5mm jack ( mono ). To us e t he 12 V trigger, inse rt t he tr igger w ire plug i n to this j ack and the p l ug at the wire’s other en d into the AV receiver or pre a m p’s 12V output jack. W e ha v e inc luded a 3.5 mm to 3.5 mm trigge r wire as w ell as a 3.5 mm to 2.5 mm tri gg[...]

12 Front Panel Ope ration Power Button Pres s the Pow er button on ce to turn the Mo del 2250 v.2 on . Pres s i t again to turn it o ff. W hen the un it is pow ered on the L an d R indicators sh ould ill u minate g reen. T he Pow er button is i nop erati v e w hen the Turn On Opt i ons sw itch i s s et to Aud io or 12V. A and B Speaker Select Butto[...]

13 Problems and Remedie s Unit Will Not Turn On • Check the setti ng of the T urn On Options swi tch. (The f r ont panel Power bu tton will be disabled i f the sw itch is set t o Audio or 12V). First try the M anual position a nd see i f the unit will turn on by pressing th e front pan el Power button. • If using Audi o Tu r n on, try increasin[...]

14 Are You Hav ing Difficulty ? Repair or Service Call your Para so und dea ler first. If the de aler can ’t help you with your prob l e m w e encou rage you to call Paras ound ’s Technical Ser vice Depart ment at 415 39 7 7100 , Monday - Friday , 8am - 4p m Pacific T ime. We can sug ges t other diagnos tic t es ts you can eas il y per f or m. [...]

15 Input Impedanc e - 33 k Ω Input Sensiti vity 1 V i n for 28.28 V o ut, TH X s tandard Inter-Channe l Cross talk 85 dB @ 1 kHz, 73 dB @ 10 kH z, 67 dB @ 20kHz Damping Factor - O v er 150 at 20Hz 12V Trigger Turn On - DC 9 – 12V, 15 mA Audio Turn On Quieter: 1 mV Loud er: 6 mV AC Power Requ irement 110 - 120 V / 220 -240 V, 50 - 60 Hz 0.5 w att[...]

16 Paras ound Prod ucts, Inc. 22 50 McKinn on Ave, Sa n Fr ancisco , CA 9412 4 415 - 397 -7100 / Fax 415- 397 -0 144 www . para sound.com[...]